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package/boost: fixup Optimization flag in boost build

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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@heine.tech>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit af148ef4f0)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Michael Nosthoff 2020-08-07 10:58:12 +02:00 committed by Peter Korsgaard
parent ff849fed45
commit 9c0aa8de35
1 changed files with 1 additions and 0 deletions
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package/boost/boost.mk
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@ -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