[Buildroot] [git commit branch/next] package/boost: fixup Optimization flag in boost build

Yann E. MORIN yann.morin.1998 at free.fr
Fri Aug 7 19:10:07 UTC 2020


commit: https://git.buildroot.net/buildroot/commit/?id=af148ef4f01aaa4f8b1ac47f5e46514394bc79aa
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

When building with Boost Build the CXXFLAGS are extended depending
on the optimization level set. When not defined explicitly the
optimization level depends on the <variant>. For release it's 'speed'
and for debug it's set to 'off'

These flags overwrite the -O flag passed in with TARGET_CXXFLAGS as
it is appended when calling g++.

This commit sets the Optimization flags generated by Boost Build
to the value of TARGET_OPTIMIZATION no matter what level is used.

As Boost Build offers no nice way to alter those values the gcc
toolchain file is altered directly.

Signed-off-by: Michael Nosthoff <buildroot at heine.tech>
Signed-off-by: Yann E. MORIN <yann.morin.1998 at free.fr>
---
 package/boost/boost.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/boost/boost.mk b/package/boost/boost.mk
index ef638fc9df..323802488d 100644
--- a/package/boost/boost.mk
+++ b/package/boost/boost.mk
@@ -134,6 +134,7 @@ define BOOST_CONFIGURE_CMDS
 	(cd $(@D) && ./bootstrap.sh $(BOOST_FLAGS))
 	echo "using gcc : `$(TARGET_CC) -dumpversion` : $(TARGET_CXX) : <cxxflags>\"$(BOOST_TARGET_CXXFLAGS)\" <linkflags>\"$(TARGET_LDFLAGS)\" ;" > $(@D)/user-config.jam
 	echo "" >> $(@D)/user-config.jam
+	sed -i "s/: -O.* ;/: $(TARGET_OPTIMIZATION) ;/" $(@D)/tools/build/src/tools/gcc.jam
 endef
 
 define BOOST_BUILD_CMDS


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