svn commit: r446955 - head/math/fftw3

[Jason E. Hale]

Author: jhale
Date: Mon Jul 31 11:58:27 2017
New Revision: 446955
URL: https://svnweb.freebsd.org/changeset/ports/446955

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

Modified:
  head/math/fftw3/Makefile

Modified: head/math/fftw3/Makefile
==============================================================================
--- head/math/fftw3/Makefile	Mon Jul 31 11:07:50 2017	(r446954)
+++ head/math/fftw3/Makefile	Mon Jul 31 11:58:27 2017	(r446955)
@@ -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