| Message ID | 1435860302-16176-1-git-send-email-bernd.kuhls@t-online.de |
|---|---|
| State | Accepted |
| Headers | show |
Bernd, all, On 2015-07-02 20:05 +0200, Bernd Kuhls spake thusly: > Fixes > checking for /home/fli4l/buildroot/output/host/usr/bin/i586-buildroot-linux-uclibc-gcc option to accept ISO C99... unsupported > configure: error: Building libdrm requires C99 enabled compiler > > using this defconfig > BR2_KERNEL_HEADERS_4_0=y > BR2_BINUTILS_VERSION_2_25=y > BR2_TOOLCHAIN_BUILDROOT_CXX=y > BR2_PACKAGE_LIBDRM=y > > Patch inspired by > http://git.buildroot.net/buildroot/commit/?id=5cf5b390385fb6325485e37dc9d38e1e3ac1f091 > > Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Regards, Yann E. MORIN. > --- > package/libdrm/libdrm.mk | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/package/libdrm/libdrm.mk b/package/libdrm/libdrm.mk > index 4cca645..1768214 100644 > --- a/package/libdrm/libdrm.mk > +++ b/package/libdrm/libdrm.mk > @@ -19,6 +19,8 @@ LIBDRM_CONF_OPTS = \ > --disable-cairo-tests \ > --disable-manpages > > +LIBDRM_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' > + > ifeq ($(BR2_PACKAGE_LIBDRM_INTEL),y) > LIBDRM_CONF_OPTS += --enable-intel > LIBDRM_DEPENDENCIES += libatomic_ops libpciaccess > -- > 1.7.10.4 > > _______________________________________________ > buildroot mailing list > buildroot@busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot
Hello Bernd, On Thu, 2 Jul 2015 20:05:02 +0200, Bernd Kuhls <bernd.kuhls@t-online.de> wrote: > Fixes > checking for /home/fli4l/buildroot/output/host/usr/bin/i586-buildroot-linux-uclibc-gcc option to accept ISO C99... unsupported > configure: error: Building libdrm requires C99 enabled compiler > > using this defconfig > BR2_KERNEL_HEADERS_4_0=y > BR2_BINUTILS_VERSION_2_25=y > BR2_TOOLCHAIN_BUILDROOT_CXX=y > BR2_PACKAGE_LIBDRM=y > > Patch inspired by > http://git.buildroot.net/buildroot/commit/?id=5cf5b390385fb6325485e37dc9d38e1e3ac1f091 > > Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> > --- > package/libdrm/libdrm.mk | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/package/libdrm/libdrm.mk b/package/libdrm/libdrm.mk > index 4cca645..1768214 100644 > --- a/package/libdrm/libdrm.mk > +++ b/package/libdrm/libdrm.mk > @@ -19,6 +19,8 @@ LIBDRM_CONF_OPTS = \ > --disable-cairo-tests \ > --disable-manpages > > +LIBDRM_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' > + > ifeq ($(BR2_PACKAGE_LIBDRM_INTEL),y) > LIBDRM_CONF_OPTS += --enable-intel > LIBDRM_DEPENDENCIES += libatomic_ops libpciaccess Same problem with libv4l (with raspberrypi_defconfig): libv4l2rds.c:256:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode for (int i = 0; i < tuning->station_cnt; i++) { ^ libv4l2rds.c:256:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code From build/libv4l-1.6.2/config.log: configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99 configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5 conftest.c:54:9: error: unknown type name 'wchar_t' const wchar_t *name; The C99 detection problem seems more related to missing wchar_t type support than the compiler option? Adding LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=c99' gives a lot of compile errors like: libv4lconvert.c: In function 'dev_ioctl': processing/../libv4lsyscall-priv.h:85:10: error: 'SYS_ioctl' undeclared (first use in this function) syscall(SYS_ioctl, (int)(fd), (unsigned long)(cmd), (void *)(arg)) ^ libv4lconvert.c:43:9: note: in expansion of macro 'SYS_IOCTL' return SYS_IOCTL(fd, cmd, arg); ^ processing/../libv4lsyscall-priv.h:85:10: note: each undeclared identifier is reported only once for each function it appears in syscall(SYS_ioctl, (int)(fd), (unsigned long)(cmd), (void *)(arg)) ^ libv4lconvert.c:43:9: note: in expansion of macro 'SYS_IOCTL' return SYS_IOCTL(fd, cmd, arg); ^ Adding LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' solves all configure/compile errors. Maybe it is a uclibc-ng and/or autoconf related problem (and there is a better/more general) solution other than to overwrite ac_cv_prog_cc_c99 for a lot of packages? Regards, Peter
On 07/02/15 23:12, Peter Seiderer wrote: [snip] > From build/libv4l-1.6.2/config.log: > > configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99 > configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5 > conftest.c:54:9: error: unknown type name 'wchar_t' > const wchar_t *name; > > > The C99 detection problem seems more related to missing wchar_t type support than the compiler option? Good catch! [Adding Waldemar for uClibc input] The configure script does include wchar.h, but it seems that wchar_t doesn't get defined after all... Waldemar, any idea? Regards, Arnout [snip]
Arnout, All, On 2015-07-02 23:46 +0200, Arnout Vandecappelle spake thusly: > On 07/02/15 23:12, Peter Seiderer wrote: > [snip] > > From build/libv4l-1.6.2/config.log: > > > > configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99 > > configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5 > > conftest.c:54:9: error: unknown type name 'wchar_t' > > const wchar_t *name; > > > > > > The C99 detection problem seems more related to missing wchar_t type support than the compiler option? > > Good catch! > > [Adding Waldemar for uClibc input] > > The configure script does include wchar.h, but it seems that wchar_t doesn't > get defined after all... Waldemar, any idea? No wchar support in the toolchain, maybe? Peter, can you confirm your toolchain is missing wchar (BR2_USE_WCHAR)? Note: I am *not* saying those packages should depend on whar, just that this would explain the failing (and broken!) autoconf test. Regards, Yann E. MORIN.
Hello Yann, On Fri, 3 Jul 2015 00:05:34 +0200, "Yann E. MORIN" <yann.morin.1998@free.fr> wrote: > Arnout, All, > > On 2015-07-02 23:46 +0200, Arnout Vandecappelle spake thusly: > > On 07/02/15 23:12, Peter Seiderer wrote: > > [snip] > > > From build/libv4l-1.6.2/config.log: > > > > > > configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99 > > > configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5 > > > conftest.c:54:9: error: unknown type name 'wchar_t' > > > const wchar_t *name; > > > > > > > > > The C99 detection problem seems more related to missing wchar_t type support than the compiler option? > > > > Good catch! > > > > [Adding Waldemar for uClibc input] > > > > The configure script does include wchar.h, but it seems that wchar_t doesn't > > get defined after all... Waldemar, any idea? > > No wchar support in the toolchain, maybe? > > Peter, can you confirm your toolchain is missing wchar (BR2_USE_WCHAR)? > Used up to date raspberrypi_defconfig, no wchar support enabled: # BR2_TOOLCHAIN_BUILDROOT_WCHAR is not set Regards, Peter > Note: I am *not* saying those packages should depend on whar, just that > this would explain the failing (and broken!) autoconf test. > > Regards, > Yann E. MORIN. >
Peter, All, On 2015-07-03 00:19 +0200, Peter Seiderer spake thusly: > On Fri, 3 Jul 2015 00:05:34 +0200, "Yann E. MORIN" <yann.morin.1998@free.fr> wrote: > > On 2015-07-02 23:46 +0200, Arnout Vandecappelle spake thusly: > > > On 07/02/15 23:12, Peter Seiderer wrote: > > > [snip] > > > > From build/libv4l-1.6.2/config.log: > > > > > > > > configure:4709: checking for .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc option to accept ISO C99 > > > > configure:4858: .../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -std=gnu99 -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5 > > > > conftest.c:54:9: error: unknown type name 'wchar_t' > > > > const wchar_t *name; > > > > > > > > > > > > The C99 detection problem seems more related to missing wchar_t type support than the compiler option? > > > > > > Good catch! > > > > > > [Adding Waldemar for uClibc input] > > > > > > The configure script does include wchar.h, but it seems that wchar_t doesn't > > > get defined after all... Waldemar, any idea? > > > > No wchar support in the toolchain, maybe? > > > > Peter, can you confirm your toolchain is missing wchar (BR2_USE_WCHAR)? > > > > Used up to date raspberrypi_defconfig, no wchar support enabled: Note that I just updated it two days ago. ;-) > # BR2_TOOLCHAIN_BUILDROOT_WCHAR is not set OK, thanks; that explains it. Still ,that autoconf test is broken... :-( Regards, Yann E. MORIN.
Dear Bernd Kuhls, On Thu, 2 Jul 2015 20:05:02 +0200, Bernd Kuhls wrote: > Fixes > checking for /home/fli4l/buildroot/output/host/usr/bin/i586-buildroot-linux-uclibc-gcc option to accept ISO C99... unsupported > configure: error: Building libdrm requires C99 enabled compiler > > using this defconfig > BR2_KERNEL_HEADERS_4_0=y > BR2_BINUTILS_VERSION_2_25=y > BR2_TOOLCHAIN_BUILDROOT_CXX=y > BR2_PACKAGE_LIBDRM=y > > Patch inspired by > http://git.buildroot.net/buildroot/commit/?id=5cf5b390385fb6325485e37dc9d38e1e3ac1f091 > > Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> > --- > package/libdrm/libdrm.mk | 2 ++ > 1 file changed, 2 insertions(+) Applied, thanks. Thomas
diff --git a/package/libdrm/libdrm.mk b/package/libdrm/libdrm.mk index 4cca645..1768214 100644 --- a/package/libdrm/libdrm.mk +++ b/package/libdrm/libdrm.mk @@ -19,6 +19,8 @@ LIBDRM_CONF_OPTS = \ --disable-cairo-tests \ --disable-manpages +LIBDRM_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99' + ifeq ($(BR2_PACKAGE_LIBDRM_INTEL),y) LIBDRM_CONF_OPTS += --enable-intel LIBDRM_DEPENDENCIES += libatomic_ops libpciaccess
Fixes checking for /home/fli4l/buildroot/output/host/usr/bin/i586-buildroot-linux-uclibc-gcc option to accept ISO C99... unsupported configure: error: Building libdrm requires C99 enabled compiler using this defconfig BR2_KERNEL_HEADERS_4_0=y BR2_BINUTILS_VERSION_2_25=y BR2_TOOLCHAIN_BUILDROOT_CXX=y BR2_PACKAGE_LIBDRM=y Patch inspired by http://git.buildroot.net/buildroot/commit/?id=5cf5b390385fb6325485e37dc9d38e1e3ac1f091 Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> --- package/libdrm/libdrm.mk | 2 ++ 1 file changed, 2 insertions(+)