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| author | Jing Yu <jingyu@google.com> | 2010-08-12 15:52:15 -0700 |
|---|---|---|
| committer | Jing Yu <jingyu@google.com> | 2010-08-12 15:52:15 -0700 |
| commit | de263c26a7680529baca731c003bc58b68d72511 (patch) | |
| tree | 1a20285b8da7e52cd766f9f4151369539e5f9e32 | |
| parent | c21b158d6f0910929dcec75327455770268a1d67 (diff) | |
| download | build-de263c26a7680529baca731c003bc58b68d72511.tar.gz | |
Allow Makefile to pick up environmental CFLAGS_FOR_TARGET, and
CXXFLAGS_FOR_TARGET. So that libstdc++_v3 libraries can be built
without modifying the Makefiles.
Change-Id: I569febd84a1bf60b15b19030064b4d9996c93bb0
Tested:
export CFLAGS_FOR_TARGET=-fexceptions
export CXXFLAGS_FOR_TARGET=-frtti
Add --enable-libstdc__-v3 to the configuration command, build a C++
supportive toolchain.
| -rw-r--r-- | Makefile.in | 14 | ||||
| -rw-r--r-- | README | 7 |
2 files changed, 13 insertions, 8 deletions
diff --git a/Makefile.in b/Makefile.in index 60307f4..2c905de 100644 --- a/Makefile.in +++ b/Makefile.in @@ -98,11 +98,11 @@ export CC_FOR_TARGET="$(TARGET_GCC_BUILDDIR)/gcc/xgcc \ # # To build libstdc++ with RTTI and exceptions do: # -#CFLAGS_FOR_TARGET= -O2 -Os -g -fexceptions -#CXXFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET) -frtti -# -CFLAGS_FOR_TARGET= -O2 -Os -g -CXXFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET) +#export CFLAGS_FOR_TARGET=-fexceptions +#export CXXFLAGS_FOR_TARGET=-frtti +# +CFLAGS_FOR_TARGET+= -O2 -Os -g +CXXFLAGS_FOR_TARGET+=$(CFLAGS_FOR_TARGET) LDFLAGS_FOR_TARGET= # Helper @@ -357,8 +357,8 @@ clean: .PHONY: distclean distclean: @$(RM) -r config.log config.status \ - $(TEMP_INSTALLDIR) temp-src \ - stmp-config-* stmp-build-* stmp-install-* && \ + $(TEMP_INSTALLDIR) temp-src \ + stmp-config-* stmp-build-* stmp-install-* && \ for sub in [ * ]; do \ if [ -f $$sub/config.status ]; then \ echo "Deleting " $$sub "..." && $(RM) -r $$sub ; \ @@ -101,7 +101,12 @@ remove these installed headers. 2.4 Enabling libstdc++-v3 For space saving, we do not provide libstdc++-v3 in the toolchain by default. -It is possible too build libstdc++-v3. The enable it, add +It is possible too build libstdc++-v3. To enable it, do + + export CFLAGS_FOR_TARGET=-fexceptions + export CXXFLAGS_FOR_TARGET=-frtti + +before configuring the toolchain, and add --enable-libstdc__-v3 |