aclocal.glob, m4/: Split the monster into separate `aclocal'-ish files.

[cfd] / m4 / mdw-libtool-version-info.m4

diff --git a/m4/mdw-libtool-version-info.m4 b/m4/mdw-libtool-version-info.m4
new file mode 100644 (file)
index 0000000..2f19157
--- /dev/null
+++ b/m4/mdw-libtool-version-info.m4
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+dnl -*-autoconf-*-
+
+dnl --- *@-mdw_LIBTOOL_VERSION_INFO-@* ---
+dnl
+dnl Author:    Mark Wooding
+dnl
+dnl Synopsis:  mdw_LIBTOOL_VERSION
+dnl
+dnl Arguments: ---
+dnl
+dnl Use:       Decodes the PACKAGE_VERSION variable as a libtool
+dnl            version-info string.  Strictly speaking, this is very
+dnl            naughty.
+
+AC_DEFUN([mdw_LIBTOOL_VERSION_INFO], [
+  set -- $(echo $PACKAGE_VERSION |
+  sed 's:[^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$]:\1 \2 \3:'
+  )
+  LIBTOOL_VERSION_INFO="$(expr $[]1 + $[]2):$[]3:$[]2"
+  AC_SUBST([LIBTOOL_VERSION_INFO])
+])