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## Check for options compiler supports. This file is in public domain.
##
AC_DEFUN([GWY_PROG_CC_OPTION],
[AC_REQUIRE([AC_PROG_CC])dnl
dnl
dnl Check whether C compiler accepts option $2, set PROG_CC_$1 to either
dnl the option or empty. On success, $3 is executed, on failure $4.
AC_CACHE_CHECK([whether $CC knows $2],
[ac_cv_prog_cc_option_$1],
[ye_PROG_CC_OPTION_cflags="$CFLAGS"
CFLAGS="$CFLAGS $2"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[ac_cv_prog_cc_option_$1=yes],
[ac_cv_prog_cc_option_$1=no])
CFLAGS="$ye_PROG_CC_OPTION_cflags"])
if test "$ac_cv_prog_cc_option_$1" = "yes"; then
PROG_CC_$1="$2"
$3
else
PROG_CC_$1=
$4
fi
])
|
