diff options
| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-02-08 19:38:17 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-02-08 19:38:17 +0000 |
| commit | 9d465faf92900b572286d6e9701632c2b289b451 (patch) | |
| tree | a1a0850efce956decdd30ccf8cc67d64ab875d26 /libgo/configure | |
| parent | 82b37806c51b3fa8cffa4876c0609e6a6801e02d (diff) | |
| download | gcc-9d465faf92900b572286d6e9701632c2b289b451.zip gcc-9d465faf92900b572286d6e9701632c2b289b451.tar.gz gcc-9d465faf92900b572286d6e9701632c2b289b451.tar.bz2 | |
math: Compile with -mfancy-math-387 -funsafe-optimizations on x86.
From-SVN: r184015
Diffstat (limited to 'libgo/configure')
| -rwxr-xr-x | libgo/configure | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/libgo/configure b/libgo/configure index 9b65c25..5821d32 100755 --- a/libgo/configure +++ b/libgo/configure @@ -604,6 +604,7 @@ LTLIBOBJS LIBOBJS STRUCT_EPOLL_EVENT_FD_OFFSET SIZEOF_STRUCT_EPOLL_EVENT +MATH_FLAG STRINGOPS_FLAG HAVE_WAIT4_FALSE HAVE_WAIT4_TRUE @@ -11101,7 +11102,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11104 "configure" +#line 11105 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11207,7 +11208,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11210 "configure" +#line 11211 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -14707,6 +14708,33 @@ if test "$libgo_cv_c_stringops" = yes; then fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -mfancy-math-387" >&5 +$as_echo_n "checking whether compiler supports -mfancy-math-387... " >&6; } +if test "${libgo_cv_c_fancymath+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -mfancy-math-387" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgo_cv_c_fancymath=yes +else + libgo_cv_c_fancymath=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS=$CFLAGS_hold +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_c_fancymath" >&5 +$as_echo "$libgo_cv_c_fancymath" >&6; } +MATH_FLAG= +if test "$libgo_cv_c_fancymath" = yes; then + MATH_FLAG="-mfancy-math-387 -funsafe-math-optimizations" +fi + + CFLAGS_hold=$CFLAGS CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" ac_fn_c_check_type "$LINENO" "off64_t" "ac_cv_type_off64_t" "$ac_includes_default" |