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Fix build on armv6. The -funsafe-math-optimizations flag in Clang (pulled in by

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-ffast-math) is emitting references to the sincos() function which is not
implemented on versions of FreeBSD < 1200032. Workaround by adding
-fno-unsafe-math-optimizations to armv6 CFLAGS.

/bin/sh ../libtool  --tag=CC   --mode=link /nxb-bin/usr/bin/cc -D_THREAD_SAFE -pthread -O2 -pipe  -O3 -ffast-math -fstrict-aliasing -fomit-frame-pointer   -o bench bench-bench.o bench-hook.o bench-fftw-bench.o ../threads/libfftw3_threads.la ../libfftw3.la ../libbench2/libbench2.a  -lm
libtool: link: /nxb-bin/usr/bin/cc -D_THREAD_SAFE -pthread -O2 -pipe -O3 -ffast-math -fstrict-aliasing -fomit-frame-pointer -o .libs/bench bench-bench.o bench-hook.o bench-fftw-bench.o  ../threads/.libs/libfftw3_threads.so ../.libs/libfftw3.so ../libbench2/libbench2.a -lm -pthread -Wl,-rpath -Wl,/usr/local/lib
./libbench2/libbench2.a(verify-lib.o): In function `aphase_shift':
verify-lib.c:(.text+0x578): undefined reference to `sincos'
./libbench2/libbench2.a(verify-lib.o): In function `tf_shift':
verify-lib.c:(.text+0x13a0): undefined reference to `sincos'
verify-lib.c:(.text+0x16e4): undefined reference to `sincos'
cc: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[3]: *** [Makefile:400: bench] Error 1
gmake[3]: Leaving directory '/wrkdirs/usr/ports/math/fftw3/work/fftw-3.3.6-pl2/tests'
gmake[2]: *** [Makefile:684: all-recursive] Error 1
gmake[2]: Leaving directory '/wrkdirs/usr/ports/math/fftw3/work/fftw-3.3.6-pl2'
gmake[1]: *** [Makefile:549: all] Error 2
gmake[1]: Leaving directory '/wrkdirs/usr/ports/math/fftw3/work/fftw-3.3.6-pl2'
*** Error code 1

PR:		220590
Submitted by:	jbeich
This commit is contained in:
Jason E. Hale 2017-07-31 11:58:27 +00:00
parent dc8b215ec1
commit 22d357186f
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=446955
1 changed files with 3 additions and 0 deletions
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3
math/fftw3/Makefile
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@ -124,6 +124,9 @@ CFLAGS+= -fomit-frame-pointer
. if ${ARCH} == "i386" && (${COMPILER_TYPE} == "gcc" || !empty(USE_GCC)) && !${PORT_OPTIONS:MOPENMPI}
CFLAGS+= -malign-double
. endif
. if ${ARCH} == "armv6" && ${OPSYS} == FreeBSD && ${OSVERSION} < 1200032
CFLAGS+= -fno-unsafe-math-optimizations
. endif
WITHOUT_NO_STRICT_ALIASING= yes
.endif # end OPTIMIZED_CFLAGS