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- AC_DEFUN([AX_CHECK_COMPILE_FLAG],
- [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
- AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
- AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
- ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
- _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
- AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
- [AS_VAR_SET(CACHEVAR,[yes])],
- [AS_VAR_SET(CACHEVAR,[no])])
- _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
- AS_VAR_IF(CACHEVAR,yes,
- [m4_default([$2], :)],
- [m4_default([$3], :)])
- AS_VAR_POPDEF([CACHEVAR])dnl
- ])dnl AX_CHECK_COMPILE_FLAGS
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