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-rw-r--r--configure.ac7
1 files changed, 6 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 268783d..c664335 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,7 +45,12 @@ AS_IF([test "x$enable_debug" = "xyes"],
[CPPFLAGS="$CPPFLAGS -DNDEBUG"])
dnl Automatically increment the revision for every release.
-LT_REVISION=$(echo "${PACKAGE_VERSION}" | tr -d .)
+set -- $(IFS=.; echo ${PACKAGE_VERSION})
+if test $# -ne 3 -o ${#1} -gt 1 -o ${#2} -gt 1 -o ${#3} -gt 2; then
+ echo "This PACKAGE_VERSION breaks LT_REVISION" >&2
+ exit 1
+fi
+LT_REVISION=$(printf "%d%d%02d" "$1" "$2" "$3")
AC_SUBST(LT_REVISION)
AC_CONFIG_COMMANDS([include/attr],