[v2] package/harfbuzz: fix host build failure due to C++11

Package harfbuzz fails to build for host with error:
```
../src/hb-map.hh:67:18: error: 'is_trivially_copyable' is not a member of 'std'
   static_assert (std::is_trivially_copyable<K>::value, "");
```

Only starting from gcc version 5.0 we have 'is_trivially_copyable' member
of std. So let's depend on BR2_HOST_GCC_AT_LEAST_5 for harfbuzz itself
and pango package that needs host-harfbuzz, but let's also depend on
BR2_TOOLCHAIN_GCC_AT_LEAST_5 for all the harfbuzz direct and
reverse dependencies since the configure/build statements are the same
for host and target harfbuzz package.

Fixes:
http://autobuild.buildroot.net/results/89e1194c1659d7e1af9db8ffe5feee770c448f76

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
---
V1->V2:
* add BR2_TOOLCHAIN_GCC_AT_LEAST_5 to harfbuzz and its dependencies
---
 package/cwiid/Config.in                        |  2 +-
 package/efl/Config.in                          |  1 +
 package/enlightenment/Config.in                |  6 +++---
 package/gstreamer1/gst1-plugins-bad/Config.in  | 17 +++++++++--------
 package/gstreamer1/gst1-plugins-base/Config.in |  6 +++---
 package/gtkmm3/Config.in                       |  2 +-
 package/harfbuzz/Config.in                     |  8 +++++---
 package/kodi/Config.in                         |  2 +-
 package/libass/Config.in                       |  6 +++---
 package/libfm/Config.in                        |  6 +++---
 package/libgtk2/Config.in                      |  6 +++---
 package/libgtk3/Config.in                      |  2 +-
 package/librsvg/Config.in                      |  6 +++---
 package/mupdf/Config.in                        |  6 +++---
 package/openbox/Config.in                      |  6 +++---
 package/pango/Config.in                        |  8 +++++---
 package/pangomm/Config.in                      |  8 ++++----
 package/pcmanfm/Config.in                      |  6 +++---
 package/pinentry/Config.in                     |  6 +++---
 package/python-pymupdf/Config.in               |  6 +++---
 package/qt5/qt5base/Config.in                  |  2 +-
 package/rrdtool/Config.in                      |  6 +++---
 package/supertuxkart/Config.in                 |  6 +++---
 package/xscreensaver/Config.in                 |  6 +++---
 24 files changed, 71 insertions(+), 65 deletions(-)

Hi Giulio,

Le mar. 28 déc. 2021 à 01:22, Giulio Benetti
<giulio.benetti@benettiengineering.com> a écrit :
>
> Package harfbuzz fails to build for host with error:
> ```
> ../src/hb-map.hh:67:18: error: 'is_trivially_copyable' is not a member of 'std'
>    static_assert (std::is_trivially_copyable<K>::value, "");
> ```
>
> Only starting from gcc version 5.0 we have 'is_trivially_copyable' member
> of std. So let's depend on BR2_HOST_GCC_AT_LEAST_5 for harfbuzz itself
> and pango package that needs host-harfbuzz, but let's also depend on
> BR2_TOOLCHAIN_GCC_AT_LEAST_5 for all the harfbuzz direct and
> reverse dependencies since the configure/build statements are the same
> for host and target harfbuzz package.
host gcc 5 dependency must also be added to:
- BR2_PACKAGE_HOST_IMAGEMAGICK_SVG:
https://patchwork.ozlabs.org/project/buildroot/patch/20211218231155.666025-1-fontaine.fabrice@gmail.com/
- adwaita-icon-theme:
https://patchwork.ozlabs.org/project/buildroot/patch/20211218231855.666502-1-fontaine.fabrice@gmail.com/
>
> Fixes:
> http://autobuild.buildroot.net/results/89e1194c1659d7e1af9db8ffe5feee770c448f76
>
> Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
> ---
> V1->V2:
> * add BR2_TOOLCHAIN_GCC_AT_LEAST_5 to harfbuzz and its dependencies
> ---
>  package/cwiid/Config.in                        |  2 +-
>  package/efl/Config.in                          |  1 +
>  package/enlightenment/Config.in                |  6 +++---
>  package/gstreamer1/gst1-plugins-bad/Config.in  | 17 +++++++++--------
>  package/gstreamer1/gst1-plugins-base/Config.in |  6 +++---
>  package/gtkmm3/Config.in                       |  2 +-
>  package/harfbuzz/Config.in                     |  8 +++++---
>  package/kodi/Config.in                         |  2 +-
>  package/libass/Config.in                       |  6 +++---
>  package/libfm/Config.in                        |  6 +++---
>  package/libgtk2/Config.in                      |  6 +++---
>  package/libgtk3/Config.in                      |  2 +-
>  package/librsvg/Config.in                      |  6 +++---
>  package/mupdf/Config.in                        |  6 +++---
>  package/openbox/Config.in                      |  6 +++---
>  package/pango/Config.in                        |  8 +++++---
>  package/pangomm/Config.in                      |  8 ++++----
>  package/pcmanfm/Config.in                      |  6 +++---
>  package/pinentry/Config.in                     |  6 +++---
>  package/python-pymupdf/Config.in               |  6 +++---
>  package/qt5/qt5base/Config.in                  |  2 +-
>  package/rrdtool/Config.in                      |  6 +++---
>  package/supertuxkart/Config.in                 |  6 +++---
>  package/xscreensaver/Config.in                 |  6 +++---
>  24 files changed, 71 insertions(+), 65 deletions(-)
>
> diff --git a/package/cwiid/Config.in b/package/cwiid/Config.in
> index 6ae2ac9405..f4a0a3dd77 100644
> --- a/package/cwiid/Config.in
> +++ b/package/cwiid/Config.in
> @@ -18,7 +18,7 @@ if BR2_PACKAGE_CWIID
>  config BR2_PACKAGE_CWIID_WMGUI
>         bool "wmgui"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>         depends on BR2_PACKAGE_XORG7 # libgtk2
>         depends on BR2_USE_WCHAR # libgtk2 -> libglib2
>         depends on BR2_TOOLCHAIN_HAS_THREADS # libgtk2 -> libglib2
> diff --git a/package/efl/Config.in b/package/efl/Config.in
> index 05ded72cf7..a37e9f6e97 100644
> --- a/package/efl/Config.in
> +++ b/package/efl/Config.in
> @@ -267,6 +267,7 @@ config BR2_PACKAGE_EFL_SVG
>         bool "SVG loader"
>         depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS # librsvg
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # librsvg -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # librsvg -> pango -> harfbuzz
>         select BR2_PACKAGE_LIBRSVG
>         select BR2_PACKAGE_CAIRO
>         help
> diff --git a/package/enlightenment/Config.in b/package/enlightenment/Config.in
> index cd2b8cfe54..9d2c637902 100644
> --- a/package/enlightenment/Config.in
> +++ b/package/enlightenment/Config.in
> @@ -14,7 +14,7 @@ config BR2_PACKAGE_ENLIGHTENMENT
>         depends on BR2_PACKAGE_XORG7
>         # libevas-generic-loaders-svg -> librsvg -> pango -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
>         select BR2_PACKAGE_EFL_X_XLIB
>         select BR2_PACKAGE_EFL_EEZE
>         select BR2_PACKAGE_EFL_JPEG # needed at runtime by enlightenment_start
> @@ -29,10 +29,10 @@ config BR2_PACKAGE_ENLIGHTENMENT
>
>           http://www.enlightenment.org/
>
> -comment "enlightenment needs udev /dev management and a toolchain w/ wchar, C++, threads, gcc >= 4.9"
> +comment "enlightenment needs udev /dev management and a toolchain w/ wchar, C++, threads, gcc >= 5.0"
>         depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>         depends on BR2_PACKAGE_EFL && BR2_PACKAGE_XORG7 && BR2_USE_MMU
>         depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_PACKAGE_HAS_UDEV
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
> diff --git a/package/gstreamer1/gst1-plugins-bad/Config.in b/package/gstreamer1/gst1-plugins-bad/Config.in
> index ad08615256..4eceb673f2 100644
> --- a/package/gstreamer1/gst1-plugins-bad/Config.in
> +++ b/package/gstreamer1/gst1-plugins-bad/Config.in
> @@ -328,13 +328,13 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_ASSRENDER
>         bool "assrender"
>         depends on BR2_INSTALL_LIBSTDCPP # libass -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libass -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libass -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libass -> harfbuzz
>         select BR2_PACKAGE_LIBASS
>
> -comment "assrender plugin needs a toolchain w/ C++, gcc >= 4.9"
> +comment "assrender plugin needs a toolchain w/ C++, gcc >= 5.0"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>
>  config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_BLUEZ
>         bool "bluez"
> @@ -481,16 +481,17 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_TTML
>         depends on BR2_TOOLCHAIN_HAS_THREADS # pango -> glib2
>         depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         select BR2_PACKAGE_CAIRO
>         select BR2_PACKAGE_LIBXML2
>         select BR2_PACKAGE_PANGO
>         help
>           Timed Text Markup Language (TTML) subtitle plugin
>
> -comment "ttml needs a toolchain w/ wchar, threads, C++"
> +comment "ttml needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
> -               !BR2_INSTALL_LIBSTDCPP
> +               !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>
>  config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEG2ENC
>         bool "mpeg2enc"
> @@ -563,15 +564,15 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_RSVG
>         depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS # librsvg
>         depends on BR2_INSTALL_LIBSTDCPP # librsvg -> pango
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # librsvg -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # librsvg -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # librsvg -> pango -> harfbuzz
>         select BR2_PACKAGE_LIBRSVG
>         help
>           RSVG plugin library
>
> -comment "rsvg plugin needs a toolchain w/ C++, gcc >= 4.9"
> +comment "rsvg plugin needs a toolchain w/ C++, gcc >= 5.0"
>         depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>
>  config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_SBC
> diff --git a/package/gstreamer1/gst1-plugins-base/Config.in b/package/gstreamer1/gst1-plugins-base/Config.in
> index 7ca94d7dc4..f343e0322a 100644
> --- a/package/gstreamer1/gst1-plugins-base/Config.in
> +++ b/package/gstreamer1/gst1-plugins-base/Config.in
> @@ -293,14 +293,14 @@ config BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_PANGO
>         bool "pango font renderer"
>         depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         select BR2_PACKAGE_PANGO
>         help
>           Pango-based text rendering and overlay
>
> -comment "pango plugin needs a toolchain w/ C++, gcc >= 4.9"
> +comment "pango plugin needs a toolchain w/ C++, gcc >= 5.0"
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>
>  config BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_THEORA
> diff --git a/package/gtkmm3/Config.in b/package/gtkmm3/Config.in
> index 8762c7208d..b21e6eb776 100644
> --- a/package/gtkmm3/Config.in
> +++ b/package/gtkmm3/Config.in
> @@ -14,7 +14,7 @@ config BR2_PACKAGE_GTKMM3
>         depends on !BR2_nios2
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pangomm, libgtk3 -> pango -> harfbuzz
>         depends on BR2_INSTALL_LIBSTDCPP # glibmm, libpangomm -> glibmm/pango
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++11
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++11, libgtk3 -> pango -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/libgtk3 -> libglib2
>         depends on BR2_USE_MMU # *mm/libgtk3 -> libglib2
>         depends on BR2_USE_WCHAR # *mm/libgtk3 -> libglib2
> diff --git a/package/harfbuzz/Config.in b/package/harfbuzz/Config.in
> index 2e4219ee22..e8691e4513 100644
> --- a/package/harfbuzz/Config.in
> +++ b/package/harfbuzz/Config.in
> @@ -2,7 +2,8 @@ config BR2_PACKAGE_HARFBUZZ
>         bool "harfbuzz"
>         depends on BR2_INSTALL_LIBSTDCPP
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
> +       depends on BR2_HOST_GCC_AT_LEAST_5 # C++11
>         help
>           HarfBuzz is an OpenType text shaping engine
>
> @@ -11,7 +12,8 @@ config BR2_PACKAGE_HARFBUZZ
>           Harfbuzz can make optional use of cairo, freetype,
>           glib2 and icu packages if they are selected.
>
> -comment "harfbuzz needs a toolchain w/ C++, gcc >= 4.9"
> +comment "harfbuzz needs a toolchain w/ C++, gcc >= 5.0 and host gcc >= 5.0"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
> +               !BR2_HOST_GCC_AT_LEAST_5
> diff --git a/package/kodi/Config.in b/package/kodi/Config.in
> index f436a444d3..d785ff617f 100644
> --- a/package/kodi/Config.in
> +++ b/package/kodi/Config.in
> @@ -52,7 +52,7 @@ menuconfig BR2_PACKAGE_KODI
>         bool "kodi"
>         depends on BR2_INSTALL_LIBSTDCPP
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libass -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++14, libass -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_THREADS
>         depends on !BR2_TOOLCHAIN_USES_MUSL
>         depends on BR2_USE_WCHAR
> diff --git a/package/libass/Config.in b/package/libass/Config.in
> index d7725d5e1b..18f910a765 100644
> --- a/package/libass/Config.in
> +++ b/package/libass/Config.in
> @@ -2,7 +2,7 @@ config BR2_PACKAGE_LIBASS
>         bool "libass"
>         depends on BR2_INSTALL_LIBSTDCPP # harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
>         select BR2_PACKAGE_FREETYPE
>         select BR2_PACKAGE_HARFBUZZ
>         select BR2_PACKAGE_LIBFRIBIDI
> @@ -12,7 +12,7 @@ config BR2_PACKAGE_LIBASS
>
>           https://github.com/libass/libass
>
> -comment "libass needs a toolchain w/ C++, gcc >= 4.9"
> +comment "libass needs a toolchain w/ C++, gcc >= 5.0"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
> diff --git a/package/libfm/Config.in b/package/libfm/Config.in
> index e78bc99b76..fab17d20aa 100644
> --- a/package/libfm/Config.in
> +++ b/package/libfm/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBFM
>         depends on BR2_USE_MMU # libglib2
>         depends on BR2_INSTALL_LIBSTDCPP # libgtk2
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>         select BR2_PACKAGE_CAIRO
>         select BR2_PACKAGE_LIBGLIB2
>         select BR2_PACKAGE_LIBGTK2 if !BR2_PACKAGE_LIBGTK3_X11
> @@ -22,9 +22,9 @@ config BR2_PACKAGE_LIBFM
>
>           http://wiki.lxde.org/en/Libfm
>
> -comment "libfm needs X.org and a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "libfm needs X.org and a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_TOOLCHAIN_HAS_THREADS || !BR2_PACKAGE_XORG7
> diff --git a/package/libgtk2/Config.in b/package/libgtk2/Config.in
> index c75c37fb63..708fdf7ad7 100644
> --- a/package/libgtk2/Config.in
> +++ b/package/libgtk2/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBGTK2
>         depends on BR2_USE_MMU # glib2
>         depends on BR2_INSTALL_LIBSTDCPP # pango
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         select BR2_PACKAGE_ATK
>         select BR2_PACKAGE_CAIRO
>         select BR2_PACKAGE_CAIRO_PS
> @@ -34,10 +34,10 @@ config BR2_PACKAGE_LIBGTK2_DEMO
>
>  endif
>
> -comment "libgtk2 needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "libgtk2 needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on BR2_PACKAGE_XORG7
>         depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_TOOLCHAIN_HAS_THREADS
> diff --git a/package/libgtk3/Config.in b/package/libgtk3/Config.in
> index bc8cacd9f5..c8277c5f89 100644
> --- a/package/libgtk3/Config.in
> +++ b/package/libgtk3/Config.in
> @@ -20,7 +20,7 @@ config BR2_PACKAGE_LIBGTK3
>         depends on BR2_USE_MMU # glib2
>         depends on BR2_INSTALL_LIBSTDCPP # pango
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND || \
>                 BR2_PACKAGE_HAS_LIBGL
>         select BR2_PACKAGE_ATK
> diff --git a/package/librsvg/Config.in b/package/librsvg/Config.in
> index 270b524b37..b77b02b8ec 100644
> --- a/package/librsvg/Config.in
> +++ b/package/librsvg/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBRSVG
>         depends on BR2_USE_MMU # glib2
>         depends on BR2_INSTALL_LIBSTDCPP # pango
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         select BR2_PACKAGE_CAIRO
>         select BR2_PACKAGE_CAIRO_PNG
>         select BR2_PACKAGE_CAIRO_SCRIPT
> @@ -21,10 +21,10 @@ config BR2_PACKAGE_LIBRSVG
>
>           https://wiki.gnome.org/Projects/LibRsvg
>
> -comment "librsvg needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "librsvg needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_INSTALL_LIBSTDCPP
> diff --git a/package/mupdf/Config.in b/package/mupdf/Config.in
> index cf97711160..e4a6e9ef59 100644
> --- a/package/mupdf/Config.in
> +++ b/package/mupdf/Config.in
> @@ -2,7 +2,7 @@ config BR2_PACKAGE_MUPDF
>         bool "mupdf"
>         depends on BR2_INSTALL_LIBSTDCPP # harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
>         depends on BR2_PACKAGE_XORG7
>         select BR2_PACKAGE_FREETYPE
>         select BR2_PACKAGE_GUMBO_PARSER
> @@ -18,7 +18,7 @@ config BR2_PACKAGE_MUPDF
>
>           https://www.mupdf.com/index.html
>
> -comment "mupdf needs a toolchain w/ C++, gcc >= 4.9"
> +comment "mupdf needs a toolchain w/ C++, gcc >= 5.0"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
> diff --git a/package/openbox/Config.in b/package/openbox/Config.in
> index e042ed2b48..83d955ae41 100644
> --- a/package/openbox/Config.in
> +++ b/package/openbox/Config.in
> @@ -5,7 +5,7 @@ config BR2_PACKAGE_OPENBOX
>         depends on BR2_USE_MMU # glib2
>         depends on BR2_USE_WCHAR # glib2
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>         select BR2_PACKAGE_LIBGLIB2
>         select BR2_PACKAGE_LIBXML2
> @@ -20,10 +20,10 @@ config BR2_PACKAGE_OPENBOX
>
>           http://openbox.org
>
> -comment "openbox needs a toolchain w/ C++, threads, wchar, gcc >= 4.9"
> +comment "openbox needs a toolchain w/ C++, threads, wchar, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_INSTALL_LIBSTDCPP
>         depends on BR2_PACKAGE_XORG7
> diff --git a/package/pango/Config.in b/package/pango/Config.in
> index e2b2e7fe2b..99f54d00c7 100644
> --- a/package/pango/Config.in
> +++ b/package/pango/Config.in
> @@ -5,7 +5,8 @@ config BR2_PACKAGE_PANGO
>         depends on BR2_USE_MMU # glib2
>         depends on BR2_INSTALL_LIBSTDCPP # freetype support
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
> +       depends on BR2_HOST_GCC_AT_LEAST_5 # host-harfbuzz
>         select BR2_PACKAGE_LIBGLIB2
>         select BR2_PACKAGE_LIBFRIBIDI
>         select BR2_PACKAGE_EXPAT
> @@ -24,9 +25,10 @@ config BR2_PACKAGE_PANGO
>
>           https://pango.gnome.org/
>
> -comment "pango needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "pango needs a toolchain w/ wchar, threads, C++, gcc >= 5.0, host gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
> +               !BR2_HOST_GCC_AT_LEAST_5 || \
>                 !BR2_INSTALL_LIBSTDCPP
> diff --git a/package/pangomm/Config.in b/package/pangomm/Config.in
> index 0702b8c5bf..411235ecec 100644
> --- a/package/pangomm/Config.in
> +++ b/package/pangomm/Config.in
> @@ -2,7 +2,7 @@ config BR2_PACKAGE_PANGOMM
>         bool "pangomm"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>         depends on BR2_INSTALL_LIBSTDCPP # glibmm/pango
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++11
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/pango -> libglib2
>         depends on BR2_USE_MMU # *mm/pango -> libglib2
>         depends on BR2_USE_WCHAR # *mm/pango -> libglib2
> @@ -15,8 +15,8 @@ config BR2_PACKAGE_PANGOMM
>
>           http://www.gtkmm.org/
>
> -comment "pangomm needs a toolchain w/ C++, wchar, threads, gcc >= 4.9"
> +comment "pangomm needs a toolchain w/ C++, wchar, threads, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
> -       depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_USE_WCHAR \
> -               || !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
> +       depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || !BR2_USE_WCHAR || \
> +               !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
> diff --git a/package/pcmanfm/Config.in b/package/pcmanfm/Config.in
> index 73b8c7c04c..238587b49e 100644
> --- a/package/pcmanfm/Config.in
> +++ b/package/pcmanfm/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_PCMANFM
>         depends on BR2_USE_MMU # libglib2
>         depends on BR2_INSTALL_LIBSTDCPP # libgtk2
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>         select BR2_PACKAGE_LIBFM
>         select BR2_PACKAGE_MENU_CACHE
>         select BR2_PACKAGE_LIBGLIB2
> @@ -18,10 +18,10 @@ config BR2_PACKAGE_PCMANFM
>
>           http://wiki.lxde.org/en/PCManFM
>
> -comment "pcmanfm needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "pcmanfm needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_PACKAGE_XORG7
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_TOOLCHAIN_HAS_THREADS
> diff --git a/package/pinentry/Config.in b/package/pinentry/Config.in
> index 3f005f8c58..dc4b2bcf8d 100644
> --- a/package/pinentry/Config.in
> +++ b/package/pinentry/Config.in
> @@ -54,17 +54,17 @@ config BR2_PACKAGE_PINENTRY_GTK2
>         depends on BR2_USE_MMU
>         depends on BR2_INSTALL_LIBSTDCPP
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>         select BR2_PACKAGE_LIBGTK2
>         select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
>         help
>           The pinentry-gtk2 tool
>
> -comment "pinentry-gtk2 needs X and a toolchain w/ wchar, threads, C++, gcc >= 4.9"
> +comment "pinentry-gtk2 needs X and a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_PACKAGE_XORG7 || !BR2_USE_WCHAR || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
>
>  config BR2_PACKAGE_PINENTRY_QT5
> diff --git a/package/python-pymupdf/Config.in b/package/python-pymupdf/Config.in
> index 0ecb288922..463f879d9f 100644
> --- a/package/python-pymupdf/Config.in
> +++ b/package/python-pymupdf/Config.in
> @@ -2,7 +2,7 @@ config BR2_PACKAGE_PYTHON_PYMUPDF
>         bool "python-pymupdf"
>         depends on BR2_INSTALL_LIBSTDCPP # mupdf -> harfbuzz
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # mupdf -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # mupdf -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # mupdf -> harfbuzz
>         depends on BR2_PACKAGE_XORG7
>         depends on BR2_PACKAGE_PYTHON3
>         select BR2_PACKAGE_FREETYPE
> @@ -18,8 +18,8 @@ comment "python-pymupdf needs Xorg"
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_PACKAGE_XORG7
>
> -comment "python-pymupdf needs a toolchain w/ C++, gcc >= 4.9"
> +comment "python-pymupdf needs a toolchain w/ C++, gcc >= 5"
>         depends on BR2_PACKAGE_PYTHON3
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
> diff --git a/package/qt5/qt5base/Config.in b/package/qt5/qt5base/Config.in
> index 601438d2fe..e808ccfae9 100644
> --- a/package/qt5/qt5base/Config.in
> +++ b/package/qt5/qt5base/Config.in
> @@ -237,7 +237,7 @@ config BR2_PACKAGE_QT5BASE_HARFBUZZ
>         bool "harfbuzz support"
>         select BR2_PACKAGE_HARFBUZZ if \
>                 BR2_TOOLCHAIN_HAS_SYNC_4 && \
> -               BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               BR2_TOOLCHAIN_GCC_AT_LEAST_5
>         help
>           This option enables HarfBuzz support (either system harfbuzz
>           if the toolchain supports __sync for 4 bytes, or the qt
> diff --git a/package/rrdtool/Config.in b/package/rrdtool/Config.in
> index 5ffdc92618..d5791428b7 100644
> --- a/package/rrdtool/Config.in
> +++ b/package/rrdtool/Config.in
> @@ -16,7 +16,7 @@ config BR2_PACKAGE_RRDTOOL_RRDGRAPH
>         bool "rrd_graph"
>         default y
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>         depends on BR2_INSTALL_LIBSTDCPP # freetype support from pango
>         select BR2_PACKAGE_CAIRO
>         select BR2_PACKAGE_CAIRO_PDF
> @@ -28,9 +28,9 @@ config BR2_PACKAGE_RRDTOOL_RRDGRAPH
>           This enables the graphing capabilities ('rrdgraph').
>           Without this it will only act as a database backend.
>
> -comment "rrd_graph support needs a toolchain w/ C++, gcc >= 4.9"
> +comment "rrd_graph support needs a toolchain w/ C++, gcc >= 5.0"
>         depends on !BR2_INSTALL_LIBSTDCPP || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>
>  endif
> diff --git a/package/supertuxkart/Config.in b/package/supertuxkart/Config.in
> index a18b9c1a0a..be4a96f826 100644
> --- a/package/supertuxkart/Config.in
> +++ b/package/supertuxkart/Config.in
> @@ -4,7 +4,7 @@ config BR2_PACKAGE_SUPERTUXKART
>         depends on BR2_i386 || BR2_x86_64
>         depends on BR2_USE_MMU # fork()
>         depends on BR2_INSTALL_LIBSTDCPP # openal
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz, openal
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz, openal
>         depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # openal
>         depends on BR2_PACKAGE_OPENAL_ARCH_SUPPORTS # openal
>         depends on BR2_PACKAGE_HAS_LIBGL
> @@ -34,7 +34,7 @@ config BR2_PACKAGE_SUPERTUXKART
>
>           http://supertuxkart.sourceforge.net/Main_Page
>
> -comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NPTL, C++, gcc >= 4.9"
> +comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NPTL, C++, gcc >= 5.0"
>         depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
>         depends on BR2_i386 || BR2_x86_64
>         depends on BR2_USE_MMU
> @@ -42,6 +42,6 @@ comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NP
>         depends on BR2_PACKAGE_XORG7
>         depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL \
>                 || !BR2_INSTALL_LIBSTDCPP \
> -               || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 \
> +               || !BR2_TOOLCHAIN_GCC_AT_LEAST_5 \
>                 || !BR2_PACKAGE_HAS_LIBGL \
>                 || BR2_TOOLCHAIN_USES_MUSL
> diff --git a/package/xscreensaver/Config.in b/package/xscreensaver/Config.in
> index 787c3130ae..4c77f76bc3 100644
> --- a/package/xscreensaver/Config.in
> +++ b/package/xscreensaver/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_XSCREENSAVER
>         depends on BR2_USE_WCHAR # gdk-pixbuf, libgtk2 -> glib2
>         depends on BR2_USE_MMU # gdk-pixbuf, libgtk2 -> glib2
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>         select BR2_PACKAGE_GDK_PIXBUF
>         select BR2_PACKAGE_LIBGLU if BR2_PACKAGE_HAS_LIBGL
>         select BR2_PACKAGE_LIBGTK2
> @@ -25,10 +25,10 @@ config BR2_PACKAGE_XSCREENSAVER
>
>           http://www.jwz.org/xscreensaver/
>
> -comment "xscreensaver needs a toolchain w/ wchar, C++, threads, gcc >= 4.9"
> +comment "xscreensaver needs a toolchain w/ wchar, C++, threads, gcc >= 5.0"
>         depends on BR2_PACKAGE_XORG7
>         depends on BR2_USE_MMU
>         depends on BR2_TOOLCHAIN_HAS_SYNC_4
>         depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>                 !BR2_USE_WCHAR
> --
> 2.25.1
>
Best Regards,

Fabrice

Hi Fabrice,

On 28/12/21 10:25, Fabrice Fontaine wrote:
> Hi Giulio,
> 
> Le mar. 28 déc. 2021 à 01:22, Giulio Benetti
> <giulio.benetti@benettiengineering.com> a écrit :
>>
>> Package harfbuzz fails to build for host with error:
>> ```
>> ../src/hb-map.hh:67:18: error: 'is_trivially_copyable' is not a member of 'std'
>>     static_assert (std::is_trivially_copyable<K>::value, "");
>> ```
>>
>> Only starting from gcc version 5.0 we have 'is_trivially_copyable' member
>> of std. So let's depend on BR2_HOST_GCC_AT_LEAST_5 for harfbuzz itself
>> and pango package that needs host-harfbuzz, but let's also depend on
>> BR2_TOOLCHAIN_GCC_AT_LEAST_5 for all the harfbuzz direct and
>> reverse dependencies since the configure/build statements are the same
>> for host and target harfbuzz package.
> host gcc 5 dependency must also be added to:
> - BR2_PACKAGE_HOST_IMAGEMAGICK_SVG:
> https://patchwork.ozlabs.org/project/buildroot/patch/20211218231155.666025-1-fontaine.fabrice@gmail.com/
> - adwaita-icon-theme:
> https://patchwork.ozlabs.org/project/buildroot/patch/20211218231855.666502-1-fontaine.fabrice@gmail.com/

I don't know how I've skipped those e-mails, thank you for pointing!
Now I answer there.

Kind regards--
Giulio Benetti
Benetti Engineering sas

>> Fixes:
>> http://autobuild.buildroot.net/results/89e1194c1659d7e1af9db8ffe5feee770c448f76
>>
>> Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
>> ---
>> V1->V2:
>> * add BR2_TOOLCHAIN_GCC_AT_LEAST_5 to harfbuzz and its dependencies
>> ---
>>   package/cwiid/Config.in                        |  2 +-
>>   package/efl/Config.in                          |  1 +
>>   package/enlightenment/Config.in                |  6 +++---
>>   package/gstreamer1/gst1-plugins-bad/Config.in  | 17 +++++++++--------
>>   package/gstreamer1/gst1-plugins-base/Config.in |  6 +++---
>>   package/gtkmm3/Config.in                       |  2 +-
>>   package/harfbuzz/Config.in                     |  8 +++++---
>>   package/kodi/Config.in                         |  2 +-
>>   package/libass/Config.in                       |  6 +++---
>>   package/libfm/Config.in                        |  6 +++---
>>   package/libgtk2/Config.in                      |  6 +++---
>>   package/libgtk3/Config.in                      |  2 +-
>>   package/librsvg/Config.in                      |  6 +++---
>>   package/mupdf/Config.in                        |  6 +++---
>>   package/openbox/Config.in                      |  6 +++---
>>   package/pango/Config.in                        |  8 +++++---
>>   package/pangomm/Config.in                      |  8 ++++----
>>   package/pcmanfm/Config.in                      |  6 +++---
>>   package/pinentry/Config.in                     |  6 +++---
>>   package/python-pymupdf/Config.in               |  6 +++---
>>   package/qt5/qt5base/Config.in                  |  2 +-
>>   package/rrdtool/Config.in                      |  6 +++---
>>   package/supertuxkart/Config.in                 |  6 +++---
>>   package/xscreensaver/Config.in                 |  6 +++---
>>   24 files changed, 71 insertions(+), 65 deletions(-)
>>
>> diff --git a/package/cwiid/Config.in b/package/cwiid/Config.in
>> index 6ae2ac9405..f4a0a3dd77 100644
>> --- a/package/cwiid/Config.in
>> +++ b/package/cwiid/Config.in
>> @@ -18,7 +18,7 @@ if BR2_PACKAGE_CWIID
>>   config BR2_PACKAGE_CWIID_WMGUI
>>          bool "wmgui"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>>          depends on BR2_PACKAGE_XORG7 # libgtk2
>>          depends on BR2_USE_WCHAR # libgtk2 -> libglib2
>>          depends on BR2_TOOLCHAIN_HAS_THREADS # libgtk2 -> libglib2
>> diff --git a/package/efl/Config.in b/package/efl/Config.in
>> index 05ded72cf7..a37e9f6e97 100644
>> --- a/package/efl/Config.in
>> +++ b/package/efl/Config.in
>> @@ -267,6 +267,7 @@ config BR2_PACKAGE_EFL_SVG
>>          bool "SVG loader"
>>          depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS # librsvg
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # librsvg -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # librsvg -> pango -> harfbuzz
>>          select BR2_PACKAGE_LIBRSVG
>>          select BR2_PACKAGE_CAIRO
>>          help
>> diff --git a/package/enlightenment/Config.in b/package/enlightenment/Config.in
>> index cd2b8cfe54..9d2c637902 100644
>> --- a/package/enlightenment/Config.in
>> +++ b/package/enlightenment/Config.in
>> @@ -14,7 +14,7 @@ config BR2_PACKAGE_ENLIGHTENMENT
>>          depends on BR2_PACKAGE_XORG7
>>          # libevas-generic-loaders-svg -> librsvg -> pango -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>          select BR2_PACKAGE_EFL_X_XLIB
>>          select BR2_PACKAGE_EFL_EEZE
>>          select BR2_PACKAGE_EFL_JPEG # needed at runtime by enlightenment_start
>> @@ -29,10 +29,10 @@ config BR2_PACKAGE_ENLIGHTENMENT
>>
>>            http://www.enlightenment.org/
>>
>> -comment "enlightenment needs udev /dev management and a toolchain w/ wchar, C++, threads, gcc >= 4.9"
>> +comment "enlightenment needs udev /dev management and a toolchain w/ wchar, C++, threads, gcc >= 5.0"
>>          depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>>          depends on BR2_PACKAGE_EFL && BR2_PACKAGE_XORG7 && BR2_USE_MMU
>>          depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_PACKAGE_HAS_UDEV
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>> diff --git a/package/gstreamer1/gst1-plugins-bad/Config.in b/package/gstreamer1/gst1-plugins-bad/Config.in
>> index ad08615256..4eceb673f2 100644
>> --- a/package/gstreamer1/gst1-plugins-bad/Config.in
>> +++ b/package/gstreamer1/gst1-plugins-bad/Config.in
>> @@ -328,13 +328,13 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_ASSRENDER
>>          bool "assrender"
>>          depends on BR2_INSTALL_LIBSTDCPP # libass -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libass -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libass -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libass -> harfbuzz
>>          select BR2_PACKAGE_LIBASS
>>
>> -comment "assrender plugin needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "assrender plugin needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>
>>   config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_BLUEZ
>>          bool "bluez"
>> @@ -481,16 +481,17 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_TTML
>>          depends on BR2_TOOLCHAIN_HAS_THREADS # pango -> glib2
>>          depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          select BR2_PACKAGE_CAIRO
>>          select BR2_PACKAGE_LIBXML2
>>          select BR2_PACKAGE_PANGO
>>          help
>>            Timed Text Markup Language (TTML) subtitle plugin
>>
>> -comment "ttml needs a toolchain w/ wchar, threads, C++"
>> +comment "ttml needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
>> -               !BR2_INSTALL_LIBSTDCPP
>> +               !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>
>>   config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_MPEG2ENC
>>          bool "mpeg2enc"
>> @@ -563,15 +564,15 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_RSVG
>>          depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS # librsvg
>>          depends on BR2_INSTALL_LIBSTDCPP # librsvg -> pango
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # librsvg -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # librsvg -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # librsvg -> pango -> harfbuzz
>>          select BR2_PACKAGE_LIBRSVG
>>          help
>>            RSVG plugin library
>>
>> -comment "rsvg plugin needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "rsvg plugin needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>
>>   config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_SBC
>> diff --git a/package/gstreamer1/gst1-plugins-base/Config.in b/package/gstreamer1/gst1-plugins-base/Config.in
>> index 7ca94d7dc4..f343e0322a 100644
>> --- a/package/gstreamer1/gst1-plugins-base/Config.in
>> +++ b/package/gstreamer1/gst1-plugins-base/Config.in
>> @@ -293,14 +293,14 @@ config BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_PANGO
>>          bool "pango font renderer"
>>          depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          select BR2_PACKAGE_PANGO
>>          help
>>            Pango-based text rendering and overlay
>>
>> -comment "pango plugin needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "pango plugin needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>
>>   config BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_THEORA
>> diff --git a/package/gtkmm3/Config.in b/package/gtkmm3/Config.in
>> index 8762c7208d..b21e6eb776 100644
>> --- a/package/gtkmm3/Config.in
>> +++ b/package/gtkmm3/Config.in
>> @@ -14,7 +14,7 @@ config BR2_PACKAGE_GTKMM3
>>          depends on !BR2_nios2
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pangomm, libgtk3 -> pango -> harfbuzz
>>          depends on BR2_INSTALL_LIBSTDCPP # glibmm, libpangomm -> glibmm/pango
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++11
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++11, libgtk3 -> pango -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/libgtk3 -> libglib2
>>          depends on BR2_USE_MMU # *mm/libgtk3 -> libglib2
>>          depends on BR2_USE_WCHAR # *mm/libgtk3 -> libglib2
>> diff --git a/package/harfbuzz/Config.in b/package/harfbuzz/Config.in
>> index 2e4219ee22..e8691e4513 100644
>> --- a/package/harfbuzz/Config.in
>> +++ b/package/harfbuzz/Config.in
>> @@ -2,7 +2,8 @@ config BR2_PACKAGE_HARFBUZZ
>>          bool "harfbuzz"
>>          depends on BR2_INSTALL_LIBSTDCPP
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
>> +       depends on BR2_HOST_GCC_AT_LEAST_5 # C++11
>>          help
>>            HarfBuzz is an OpenType text shaping engine
>>
>> @@ -11,7 +12,8 @@ config BR2_PACKAGE_HARFBUZZ
>>            Harfbuzz can make optional use of cairo, freetype,
>>            glib2 and icu packages if they are selected.
>>
>> -comment "harfbuzz needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "harfbuzz needs a toolchain w/ C++, gcc >= 5.0 and host gcc >= 5.0"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>> +               !BR2_HOST_GCC_AT_LEAST_5
>> diff --git a/package/kodi/Config.in b/package/kodi/Config.in
>> index f436a444d3..d785ff617f 100644
>> --- a/package/kodi/Config.in
>> +++ b/package/kodi/Config.in
>> @@ -52,7 +52,7 @@ menuconfig BR2_PACKAGE_KODI
>>          bool "kodi"
>>          depends on BR2_INSTALL_LIBSTDCPP
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libass -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++14, libass -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_THREADS
>>          depends on !BR2_TOOLCHAIN_USES_MUSL
>>          depends on BR2_USE_WCHAR
>> diff --git a/package/libass/Config.in b/package/libass/Config.in
>> index d7725d5e1b..18f910a765 100644
>> --- a/package/libass/Config.in
>> +++ b/package/libass/Config.in
>> @@ -2,7 +2,7 @@ config BR2_PACKAGE_LIBASS
>>          bool "libass"
>>          depends on BR2_INSTALL_LIBSTDCPP # harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
>>          select BR2_PACKAGE_FREETYPE
>>          select BR2_PACKAGE_HARFBUZZ
>>          select BR2_PACKAGE_LIBFRIBIDI
>> @@ -12,7 +12,7 @@ config BR2_PACKAGE_LIBASS
>>
>>            https://github.com/libass/libass
>>
>> -comment "libass needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "libass needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>> diff --git a/package/libfm/Config.in b/package/libfm/Config.in
>> index e78bc99b76..fab17d20aa 100644
>> --- a/package/libfm/Config.in
>> +++ b/package/libfm/Config.in
>> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBFM
>>          depends on BR2_USE_MMU # libglib2
>>          depends on BR2_INSTALL_LIBSTDCPP # libgtk2
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>>          select BR2_PACKAGE_CAIRO
>>          select BR2_PACKAGE_LIBGLIB2
>>          select BR2_PACKAGE_LIBGTK2 if !BR2_PACKAGE_LIBGTK3_X11
>> @@ -22,9 +22,9 @@ config BR2_PACKAGE_LIBFM
>>
>>            http://wiki.lxde.org/en/Libfm
>>
>> -comment "libfm needs X.org and a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "libfm needs X.org and a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_TOOLCHAIN_HAS_THREADS || !BR2_PACKAGE_XORG7
>> diff --git a/package/libgtk2/Config.in b/package/libgtk2/Config.in
>> index c75c37fb63..708fdf7ad7 100644
>> --- a/package/libgtk2/Config.in
>> +++ b/package/libgtk2/Config.in
>> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBGTK2
>>          depends on BR2_USE_MMU # glib2
>>          depends on BR2_INSTALL_LIBSTDCPP # pango
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          select BR2_PACKAGE_ATK
>>          select BR2_PACKAGE_CAIRO
>>          select BR2_PACKAGE_CAIRO_PS
>> @@ -34,10 +34,10 @@ config BR2_PACKAGE_LIBGTK2_DEMO
>>
>>   endif
>>
>> -comment "libgtk2 needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "libgtk2 needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on BR2_PACKAGE_XORG7
>>          depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_TOOLCHAIN_HAS_THREADS
>> diff --git a/package/libgtk3/Config.in b/package/libgtk3/Config.in
>> index bc8cacd9f5..c8277c5f89 100644
>> --- a/package/libgtk3/Config.in
>> +++ b/package/libgtk3/Config.in
>> @@ -20,7 +20,7 @@ config BR2_PACKAGE_LIBGTK3
>>          depends on BR2_USE_MMU # glib2
>>          depends on BR2_INSTALL_LIBSTDCPP # pango
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND || \
>>                  BR2_PACKAGE_HAS_LIBGL
>>          select BR2_PACKAGE_ATK
>> diff --git a/package/librsvg/Config.in b/package/librsvg/Config.in
>> index 270b524b37..b77b02b8ec 100644
>> --- a/package/librsvg/Config.in
>> +++ b/package/librsvg/Config.in
>> @@ -6,7 +6,7 @@ config BR2_PACKAGE_LIBRSVG
>>          depends on BR2_USE_MMU # glib2
>>          depends on BR2_INSTALL_LIBSTDCPP # pango
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          select BR2_PACKAGE_CAIRO
>>          select BR2_PACKAGE_CAIRO_PNG
>>          select BR2_PACKAGE_CAIRO_SCRIPT
>> @@ -21,10 +21,10 @@ config BR2_PACKAGE_LIBRSVG
>>
>>            https://wiki.gnome.org/Projects/LibRsvg
>>
>> -comment "librsvg needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "librsvg needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_INSTALL_LIBSTDCPP
>> diff --git a/package/mupdf/Config.in b/package/mupdf/Config.in
>> index cf97711160..e4a6e9ef59 100644
>> --- a/package/mupdf/Config.in
>> +++ b/package/mupdf/Config.in
>> @@ -2,7 +2,7 @@ config BR2_PACKAGE_MUPDF
>>          bool "mupdf"
>>          depends on BR2_INSTALL_LIBSTDCPP # harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
>>          depends on BR2_PACKAGE_XORG7
>>          select BR2_PACKAGE_FREETYPE
>>          select BR2_PACKAGE_GUMBO_PARSER
>> @@ -18,7 +18,7 @@ config BR2_PACKAGE_MUPDF
>>
>>            https://www.mupdf.com/index.html
>>
>> -comment "mupdf needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "mupdf needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>> diff --git a/package/openbox/Config.in b/package/openbox/Config.in
>> index e042ed2b48..83d955ae41 100644
>> --- a/package/openbox/Config.in
>> +++ b/package/openbox/Config.in
>> @@ -5,7 +5,7 @@ config BR2_PACKAGE_OPENBOX
>>          depends on BR2_USE_MMU # glib2
>>          depends on BR2_USE_WCHAR # glib2
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          depends on BR2_INSTALL_LIBSTDCPP # pango -> freetype
>>          select BR2_PACKAGE_LIBGLIB2
>>          select BR2_PACKAGE_LIBXML2
>> @@ -20,10 +20,10 @@ config BR2_PACKAGE_OPENBOX
>>
>>            http://openbox.org
>>
>> -comment "openbox needs a toolchain w/ C++, threads, wchar, gcc >= 4.9"
>> +comment "openbox needs a toolchain w/ C++, threads, wchar, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_INSTALL_LIBSTDCPP
>>          depends on BR2_PACKAGE_XORG7
>> diff --git a/package/pango/Config.in b/package/pango/Config.in
>> index e2b2e7fe2b..99f54d00c7 100644
>> --- a/package/pango/Config.in
>> +++ b/package/pango/Config.in
>> @@ -5,7 +5,8 @@ config BR2_PACKAGE_PANGO
>>          depends on BR2_USE_MMU # glib2
>>          depends on BR2_INSTALL_LIBSTDCPP # freetype support
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz
>> +       depends on BR2_HOST_GCC_AT_LEAST_5 # host-harfbuzz
>>          select BR2_PACKAGE_LIBGLIB2
>>          select BR2_PACKAGE_LIBFRIBIDI
>>          select BR2_PACKAGE_EXPAT
>> @@ -24,9 +25,10 @@ config BR2_PACKAGE_PANGO
>>
>>            https://pango.gnome.org/
>>
>> -comment "pango needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "pango needs a toolchain w/ wchar, threads, C++, gcc >= 5.0, host gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>> +               !BR2_HOST_GCC_AT_LEAST_5 || \
>>                  !BR2_INSTALL_LIBSTDCPP
>> diff --git a/package/pangomm/Config.in b/package/pangomm/Config.in
>> index 0702b8c5bf..411235ecec 100644
>> --- a/package/pangomm/Config.in
>> +++ b/package/pangomm/Config.in
>> @@ -2,7 +2,7 @@ config BR2_PACKAGE_PANGOMM
>>          bool "pangomm"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>>          depends on BR2_INSTALL_LIBSTDCPP # glibmm/pango
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++11
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/pango -> libglib2
>>          depends on BR2_USE_MMU # *mm/pango -> libglib2
>>          depends on BR2_USE_WCHAR # *mm/pango -> libglib2
>> @@ -15,8 +15,8 @@ config BR2_PACKAGE_PANGOMM
>>
>>            http://www.gtkmm.org/
>>
>> -comment "pangomm needs a toolchain w/ C++, wchar, threads, gcc >= 4.9"
>> +comment "pangomm needs a toolchain w/ C++, wchar, threads, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>> -       depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_USE_WCHAR \
>> -               || !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
>> +       depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || !BR2_USE_WCHAR || \
>> +               !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
>> diff --git a/package/pcmanfm/Config.in b/package/pcmanfm/Config.in
>> index 73b8c7c04c..238587b49e 100644
>> --- a/package/pcmanfm/Config.in
>> +++ b/package/pcmanfm/Config.in
>> @@ -6,7 +6,7 @@ config BR2_PACKAGE_PCMANFM
>>          depends on BR2_USE_MMU # libglib2
>>          depends on BR2_INSTALL_LIBSTDCPP # libgtk2
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>>          select BR2_PACKAGE_LIBFM
>>          select BR2_PACKAGE_MENU_CACHE
>>          select BR2_PACKAGE_LIBGLIB2
>> @@ -18,10 +18,10 @@ config BR2_PACKAGE_PCMANFM
>>
>>            http://wiki.lxde.org/en/PCManFM
>>
>> -comment "pcmanfm needs a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "pcmanfm needs a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_PACKAGE_XORG7
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_TOOLCHAIN_HAS_THREADS
>> diff --git a/package/pinentry/Config.in b/package/pinentry/Config.in
>> index 3f005f8c58..dc4b2bcf8d 100644
>> --- a/package/pinentry/Config.in
>> +++ b/package/pinentry/Config.in
>> @@ -54,17 +54,17 @@ config BR2_PACKAGE_PINENTRY_GTK2
>>          depends on BR2_USE_MMU
>>          depends on BR2_INSTALL_LIBSTDCPP
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>>          select BR2_PACKAGE_LIBGTK2
>>          select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
>>          help
>>            The pinentry-gtk2 tool
>>
>> -comment "pinentry-gtk2 needs X and a toolchain w/ wchar, threads, C++, gcc >= 4.9"
>> +comment "pinentry-gtk2 needs X and a toolchain w/ wchar, threads, C++, gcc >= 5.0"
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_PACKAGE_XORG7 || !BR2_USE_WCHAR || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
>>
>>   config BR2_PACKAGE_PINENTRY_QT5
>> diff --git a/package/python-pymupdf/Config.in b/package/python-pymupdf/Config.in
>> index 0ecb288922..463f879d9f 100644
>> --- a/package/python-pymupdf/Config.in
>> +++ b/package/python-pymupdf/Config.in
>> @@ -2,7 +2,7 @@ config BR2_PACKAGE_PYTHON_PYMUPDF
>>          bool "python-pymupdf"
>>          depends on BR2_INSTALL_LIBSTDCPP # mupdf -> harfbuzz
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # mupdf -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # mupdf -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # mupdf -> harfbuzz
>>          depends on BR2_PACKAGE_XORG7
>>          depends on BR2_PACKAGE_PYTHON3
>>          select BR2_PACKAGE_FREETYPE
>> @@ -18,8 +18,8 @@ comment "python-pymupdf needs Xorg"
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_PACKAGE_XORG7
>>
>> -comment "python-pymupdf needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "python-pymupdf needs a toolchain w/ C++, gcc >= 5"
>>          depends on BR2_PACKAGE_PYTHON3
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>> diff --git a/package/qt5/qt5base/Config.in b/package/qt5/qt5base/Config.in
>> index 601438d2fe..e808ccfae9 100644
>> --- a/package/qt5/qt5base/Config.in
>> +++ b/package/qt5/qt5base/Config.in
>> @@ -237,7 +237,7 @@ config BR2_PACKAGE_QT5BASE_HARFBUZZ
>>          bool "harfbuzz support"
>>          select BR2_PACKAGE_HARFBUZZ if \
>>                  BR2_TOOLCHAIN_HAS_SYNC_4 && \
>> -               BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>          help
>>            This option enables HarfBuzz support (either system harfbuzz
>>            if the toolchain supports __sync for 4 bytes, or the qt
>> diff --git a/package/rrdtool/Config.in b/package/rrdtool/Config.in
>> index 5ffdc92618..d5791428b7 100644
>> --- a/package/rrdtool/Config.in
>> +++ b/package/rrdtool/Config.in
>> @@ -16,7 +16,7 @@ config BR2_PACKAGE_RRDTOOL_RRDGRAPH
>>          bool "rrd_graph"
>>          default y
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # pango -> harfbuzz
>>          depends on BR2_INSTALL_LIBSTDCPP # freetype support from pango
>>          select BR2_PACKAGE_CAIRO
>>          select BR2_PACKAGE_CAIRO_PDF
>> @@ -28,9 +28,9 @@ config BR2_PACKAGE_RRDTOOL_RRDGRAPH
>>            This enables the graphing capabilities ('rrdgraph').
>>            Without this it will only act as a database backend.
>>
>> -comment "rrd_graph support needs a toolchain w/ C++, gcc >= 4.9"
>> +comment "rrd_graph support needs a toolchain w/ C++, gcc >= 5.0"
>>          depends on !BR2_INSTALL_LIBSTDCPP || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>
>>   endif
>> diff --git a/package/supertuxkart/Config.in b/package/supertuxkart/Config.in
>> index a18b9c1a0a..be4a96f826 100644
>> --- a/package/supertuxkart/Config.in
>> +++ b/package/supertuxkart/Config.in
>> @@ -4,7 +4,7 @@ config BR2_PACKAGE_SUPERTUXKART
>>          depends on BR2_i386 || BR2_x86_64
>>          depends on BR2_USE_MMU # fork()
>>          depends on BR2_INSTALL_LIBSTDCPP # openal
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # harfbuzz, openal
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # harfbuzz, openal
>>          depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # openal
>>          depends on BR2_PACKAGE_OPENAL_ARCH_SUPPORTS # openal
>>          depends on BR2_PACKAGE_HAS_LIBGL
>> @@ -34,7 +34,7 @@ config BR2_PACKAGE_SUPERTUXKART
>>
>>            http://supertuxkart.sourceforge.net/Main_Page
>>
>> -comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NPTL, C++, gcc >= 4.9"
>> +comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NPTL, C++, gcc >= 5.0"
>>          depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
>>          depends on BR2_i386 || BR2_x86_64
>>          depends on BR2_USE_MMU
>> @@ -42,6 +42,6 @@ comment "supertuxkart needs an OpenGL backend, a uClibc or glibc toolchain w/ NP
>>          depends on BR2_PACKAGE_XORG7
>>          depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL \
>>                  || !BR2_INSTALL_LIBSTDCPP \
>> -               || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 \
>> +               || !BR2_TOOLCHAIN_GCC_AT_LEAST_5 \
>>                  || !BR2_PACKAGE_HAS_LIBGL \
>>                  || BR2_TOOLCHAIN_USES_MUSL
>> diff --git a/package/xscreensaver/Config.in b/package/xscreensaver/Config.in
>> index 787c3130ae..4c77f76bc3 100644
>> --- a/package/xscreensaver/Config.in
>> +++ b/package/xscreensaver/Config.in
>> @@ -6,7 +6,7 @@ config BR2_PACKAGE_XSCREENSAVER
>>          depends on BR2_USE_WCHAR # gdk-pixbuf, libgtk2 -> glib2
>>          depends on BR2_USE_MMU # gdk-pixbuf, libgtk2 -> glib2
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libgtk2 -> pango -> harfbuzz
>> -       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgtk2 -> pango -> harfbuzz
>> +       depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # libgtk2 -> pango -> harfbuzz
>>          select BR2_PACKAGE_GDK_PIXBUF
>>          select BR2_PACKAGE_LIBGLU if BR2_PACKAGE_HAS_LIBGL
>>          select BR2_PACKAGE_LIBGTK2
>> @@ -25,10 +25,10 @@ config BR2_PACKAGE_XSCREENSAVER
>>
>>            http://www.jwz.org/xscreensaver/
>>
>> -comment "xscreensaver needs a toolchain w/ wchar, C++, threads, gcc >= 4.9"
>> +comment "xscreensaver needs a toolchain w/ wchar, C++, threads, gcc >= 5.0"
>>          depends on BR2_PACKAGE_XORG7
>>          depends on BR2_USE_MMU
>>          depends on BR2_TOOLCHAIN_HAS_SYNC_4
>>          depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
>> -               !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
>> +               !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
>>                  !BR2_USE_WCHAR
>> --
>> 2.25.1
>>
> Best Regards,
> 
> Fabrice
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>