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-rw-r--r--xorg-macros.m4.in26
1 files changed, 11 insertions, 15 deletions
diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in
index 66d80a9..80216e2 100644
--- a/xorg-macros.m4.in
+++ b/xorg-macros.m4.in
@@ -42,21 +42,17 @@ dnl of the copyright holder.
#
# See the "minimum version" comment for each macro you use to see what
# version you require.
-AC_DEFUN([XORG_MACROS_VERSION],[
- [XORG_MACROS_needed_version=$1
- XORG_MACROS_needed_major=`echo $XORG_MACROS_needed_version | sed 's/\..*$//'`
- XORG_MACROS_needed_minor=`echo $XORG_MACROS_needed_version | sed -e 's/^[0-9]*\.//' -e 's/\..*$//'`]
- AC_MSG_CHECKING([if xorg-macros used to generate configure is at least ${XORG_MACROS_needed_major}.${XORG_MACROS_needed_minor}])
- [XORG_MACROS_version=@VERSION@
- XORG_MACROS_major=`echo $XORG_MACROS_version | sed 's/\..*$//'`
- XORG_MACROS_minor=`echo $XORG_MACROS_version | sed -e 's/^[0-9]*\.//' -e 's/\..*$//'`]
- if test $XORG_MACROS_major -ne $XORG_MACROS_needed_major ; then
- AC_MSG_ERROR([configure built with incompatible version of xorg-macros.m4 - requires version ${XORG_MACROS_needed_major}.x])
- fi
- if test $XORG_MACROS_minor -lt $XORG_MACROS_needed_minor ; then
- AC_MSG_ERROR([configure built with too old of a version of xorg-macros.m4 - requires version ${XORG_MACROS_needed_major}.${XORG_MACROS_needed_minor}.0 or newer])
- fi
- AC_MSG_RESULT([yes, $XORG_MACROS_version])
+m4_defun([XORG_MACROS_VERSION],[
+m4_define([vers_have], [@VERSION@])
+m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.])))
+m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.])))
+m4_if(m4_cmp(maj_have, maj_needed), 0,,
+ [m4_fatal([xorg-macros major version ]maj_needed[ is required but ]vers_have[ found])])
+m4_if(m4_version_compare(vers_have, [$1]), -1,
+ [m4_fatal([xorg-macros version $1 or higher is required but ]vers_have[ found])])
+m4_undefine([vers_have])
+m4_undefine([maj_have])
+m4_undefine([maj_needed])
]) # XORG_MACROS_VERSION
# XORG_PROG_RAWCPP()