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M4 Source File  |  2003-04-09  |  511b  |  16 lines
  1. dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
  2. dnl check if $CC supports a given set of cflags
  3. AC_DEFUN([AC_TRY_CFLAGS],
  4.     [AC_MSG_CHECKING([if $CC supports $1 flags])
  5.     SAVE_CFLAGS="$CFLAGS"
  6.     CFLAGS="$1"
  7.     AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
  8.     CFLAGS="$SAVE_CFLAGS"
  9.     AC_MSG_RESULT([$ac_cv_try_cflags_ok])
  10.     if test x"$ac_cv_try_cflags_ok" = x"yes"; then
  11.         ifelse([$2],[],[:],[$2])
  12.     else
  13.         ifelse([$3],[],[:],[$3])
  14.     fi])
  15.  
  16.