X-Git-Url: https://git.distorted.org.uk/~mdw/cfd/blobdiff_plain/ae4e0977c7e5762116907a1913f15f2414f07ac1..fb2149fc2dc1d5f4936b2af31be7c7bd02f83324:/m4/mdw-auto-version.m4

diff --git a/m4/mdw-auto-version.m4 b/m4/mdw-auto-version.m4
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+dnl -*-autoconf-*-
+
+dnl --- *@-mdw_AUTO_VERSION-@* ---
+dnl
+dnl Author:	Mark Wooding
+dnl
+dnl Synopsis:	mdw_AUTO_VERSION
+dnl
+dnl Arguments:	---
+dnl
+dnl Use:	Defines an m4 macro AUTO_VERSION which contains the current
+dnl		version number, worked out in some clever way.
+
+AC_DEFUN([mdw_AUTO_VERSION], [nobody cares...])
+m4_define([mdw_AUTO_VERSION], [m4_define([AUTO_VERSION], m4_esyscmd([
+  ver=UNKNOWN
+  for pre in ./ config/; do
+    for post in "" .in; do
+      try=${pre}auto-version${post}
+      if test -x $try; then ver=$("$try"); break; fi
+    done
+  done
+  echo -n "$ver"
+]))])