diff options
| -rw-r--r-- | configure.ac | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index e7dee78..4c2c586 100644 --- a/configure.ac +++ b/configure.ac @@ -3,9 +3,25 @@ AC_INIT([xcb-util],0.3.4,[xcb@lists.freedesktop.org]) AC_CONFIG_SRCDIR([Makefile.am]) AM_INIT_AUTOMAKE([foreign dist-bzip2]) -AC_CHECK_PROGS(M4, m4, [no]) +AC_CHECK_PROGS(M4, [m4 gm4], [no]) +if test $M4 != "no" ; then + AC_MSG_CHECKING([if $M4 supports -I]) + if $M4 -I. /dev/null > /dev/null 2>&1 ; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + # Try finding the gnu version + AC_CHECK_PROGS(GM4, gm4, [no]) + if test $GM4 = "no" ; then + AC_PATH_PROGS(GNUM4, m4, [no], [/usr/gnu/bin]) + M4="$GNUM4" + else + M4="$GM4" + fi + fi +fi if test $M4 = "no"; then - AC_MSG_ERROR([Can't find m4, please install it and try again]) + AC_MSG_ERROR([Can't find usable m4, please install it and try again]) fi AC_CHECK_PROGS(GPERF, gperf, [no]) if test $GPERF = "no"; then |