diff options
author | Peter Eisentraut <peter_e@gmx.net> | 2002-09-20 18:38:57 +0000 |
---|---|---|
committer | Peter Eisentraut <peter_e@gmx.net> | 2002-09-20 18:38:57 +0000 |
commit | 105907f7dcdbad94ca007b89ca310024389afabe (patch) | |
tree | 891361a82e951468b5bb5957b3eac611d9f6e175 /configure | |
parent | 316d4e29b2a1ba5c70eb6fba3e820b971157c025 (diff) | |
download | postgresql-105907f7dcdbad94ca007b89ca310024389afabe.tar.gz |
Put in defense against gcc -ffast-math.
Diffstat (limited to 'configure')
-rwxr-xr-x | configure | 47 |
1 files changed, 47 insertions, 0 deletions
@@ -2442,6 +2442,7 @@ if test "$enable_debug" = yes && test "$ac_cv_prog_cc_g" = yes; then fi { echo "$as_me:$LINENO: using CFLAGS=$CFLAGS" >&5 echo "$as_me: using CFLAGS=$CFLAGS" >&6;} + # Check if the compiler still works with the template settings echo "$as_me:$LINENO: checking whether the C compiler still works" >&5 echo $ECHO_N "checking whether the C compiler still works... $ECHO_C" >&6 @@ -2488,6 +2489,52 @@ echo "$as_me: error: cannot proceed" >&2;} { (exit 1); exit 1; }; } fi rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext + +# Defend against gcc -ffastmath +if test "$GCC" = yes; then +cat >conftest.$ac_ext <<_ACEOF +#line $LINENO "configure" +#include "confdefs.h" + +#ifdef F77_DUMMY_MAIN +# ifdef __cplusplus + extern "C" +# endif + int F77_DUMMY_MAIN() { return 1; } +#endif +int +main () +{ +#ifdef __FAST_MATH__ +choke me +#endif + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: failed program was:" >&5 +cat conftest.$ac_ext >&5 +{ { echo "$as_me:$LINENO: error: do not put -ffast-math in CFLAGS" >&5 +echo "$as_me: error: do not put -ffast-math in CFLAGS" >&2;} + { (exit 1); exit 1; }; } +fi +rm -f conftest.$ac_objext conftest.$ac_ext +fi + ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' |