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Remove -lc++ link and document -fno-exceptions

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-lc++ can cause link error on some systems and is not necessary on gcc 4.6+ so remove the link option and document how to build for gcc 4.4

TEST=CC=gcc-4.4 CXXFLAGS=-fno-exceptions CXX=g++-4.4 make -f linux.mk clean all
BUG=libyuv:616

Review URL: https://codereview.chromium.org/2126703003 .
This commit is contained in:
Frank Barchard 2016-07-06 16:02:17 -07:00
parent 303b9f03c8
commit ff9b16b828
1 changed files with 3 additions and 1 deletions
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4
linux.mk
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@ -74,8 +74,10 @@ psnr: util/psnr.cc
$(CXX) $(CXXFLAGS) -Iutil/ -o $@ util/psnr.cc util/psnr_main.cc util/ssim.cc $(CXX) $(CXXFLAGS) -Iutil/ -o $@ util/psnr.cc util/psnr_main.cc util/ssim.cc
# A C test utility that uses libyuv conversion from C. # A C test utility that uses libyuv conversion from C.
# gcc 4.4 and older require -fno-exceptions to avoid link error on __gxx_personality_v0
# CC=gcc-4.4 CXXFLAGS=-fno-exceptions CXX=g++-4.4 make -f linux.mk
cpuid: util/cpuid.c libyuv.a cpuid: util/cpuid.c libyuv.a
$(CC) $(CFLAGS) -o $@ util/cpuid.c libyuv.a -lc++ $(CC) $(CFLAGS) -o $@ util/cpuid.c libyuv.a
clean: clean:
/bin/rm -f source/*.o *.ii *.s libyuv.a convert cpuid psnr /bin/rm -f source/*.o *.ii *.s libyuv.a convert cpuid psnr