diff options
Diffstat (limited to 'contrib/amd/m4/macros/cache_check_dynamic.m4')
| -rw-r--r-- | contrib/amd/m4/macros/cache_check_dynamic.m4 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/contrib/amd/m4/macros/cache_check_dynamic.m4 b/contrib/amd/m4/macros/cache_check_dynamic.m4 new file mode 100644 index 0000000..b8eb598 --- /dev/null +++ b/contrib/amd/m4/macros/cache_check_dynamic.m4 @@ -0,0 +1,26 @@ +dnl ###################################################################### +dnl New versions of the cache functions which also dynamically evaluate the +dnl cache-id field, so that it may contain shell variables to expand +dnl dynamically for the creation of $ac_cv_* variables on the fly. +dnl In addition, this function allows you to call COMMANDS which generate +dnl output on the command line, because it prints its own AC_MSG_CHECKING +dnl after COMMANDS are run. +dnl +dnl ====================================================================== +dnl AMU_CACHE_CHECK_DYNAMIC(MESSAGE, CACHE-ID, COMMANDS) +define(AMU_CACHE_CHECK_DYNAMIC, +[ +ac_tmp=`echo $2` +if eval "test \"`echo '$''{'$ac_tmp'+set}'`\" = set"; then + AC_MSG_CHECKING([$1]) + echo $ECHO_N "(cached) $ECHO_C" 1>&AS_MESSAGE_FD([]) +dnl XXX: for older autoconf versions +dnl echo $ac_n "(cached) $ac_c" 1>&AS_MESSAGE_FD([]) +else + $3 + AC_MSG_CHECKING([$1]) +fi +ac_tmp_val=`eval eval "echo '$''{'$ac_tmp'}'"` +AC_MSG_RESULT($ac_tmp_val) +]) +dnl ====================================================================== |
