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[OpenWrt-Devel] libcxx: Remove -flto from LDFLAGS

Message ID 20200104023101.65075-1-rosenp@gmail.com
State Accepted
Delegated to: Hauke Mehrtens
Headers show
Series [OpenWrt-Devel] libcxx: Remove -flto from LDFLAGS | expand

Commit Message

Rosen Penev Jan. 4, 2020, 2:31 a.m. UTC 
It seems the buildbots can't handle it.

Added a cmake option to find the cxxabi files as they are part of the
toolchain and not in the normal path. It doesn't seem to make a
difference, just gets rid of cmake warnings.

Added another small GCC warning fix. It's fairly minor.

This has no change in compiled size, and most likely no change in
behavior. Bumped the PKG_RELEASE anyway.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 package/libs/libcxx/Makefile                |  6 ++++--
 package/libs/libcxx/patches/020-fixes.patch | 11 +++++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)
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Patch

diff --git a/package/libs/libcxx/Makefile b/package/libs/libcxx/Makefile
index 1d8e502221..53b7f1eaab 100644
--- a/package/libs/libcxx/Makefile
+++ b/package/libs/libcxx/Makefile
@@ -1,3 +1,4 @@ 
+
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -7,7 +8,7 @@  include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libcxx
 PKG_VERSION:=9.0.1
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://git.llvm.org/git/libcxx
@@ -38,6 +39,7 @@  endef
 
 CMAKE_OPTIONS += \
 	-DLIBCXX_CXX_ABI="libsupc++" \
+	-DLIBCXX_CXX_ABI_INCLUDE_PATHS="$(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/include/c++/$(CONFIG_GCC_VERSION);$(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/include/c++/$(CONFIG_GCC_VERSION)/$(REAL_GNU_TARGET_NAME)" \
 	-DLIBCXX_ENABLE_ASSERTIONS=OFF \
 	-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF \
 	-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
@@ -47,7 +49,7 @@  CMAKE_OPTIONS += \
 	-DLIBCXX_HAS_MUSL_LIBC=$(if $(CONFIG_USE_MUSL),ON,OFF)
 
 TARGET_CXXFLAGS += -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -Wno-attributes -flto
-TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed -flto=jobserver
+TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed
 
 define Build/InstallDev
 	$(call Build/InstallDev/cmake,$(1))
diff --git a/package/libs/libcxx/patches/020-fixes.patch b/package/libs/libcxx/patches/020-fixes.patch
index abc630d42f..96624776af 100644
--- a/package/libs/libcxx/patches/020-fixes.patch
+++ b/package/libs/libcxx/patches/020-fixes.patch
@@ -1,3 +1,14 @@ 
+--- a/include/cmath
++++ b/include/cmath
+@@ -615,7 +615,7 @@ _Fp __lerp(_Fp __a, _Fp __b, _Fp __t) noexcept {
+ 
+     if (__t == 1) return __b;
+     const _Fp __x = __a + __t * (__b - __a);
+-    if (__t > 1 == __b > __a)
++    if ((__t > 1) == (__b > __a))
+     	return __b < __x ? __x : __b;
+     else
+     	return __x < __b ? __x : __b;
 --- a/include/memory
 +++ b/include/memory
 @@ -1696,7 +1696,7 @@ struct _LIBCPP_TEMPLATE_VIS allocator_traits