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-rw-r--r--m4/knot-lib-version.m416
1 files changed, 16 insertions, 0 deletions
diff --git a/m4/knot-lib-version.m4 b/m4/knot-lib-version.m4
new file mode 100644
index 0000000..1627957
--- /dev/null
+++ b/m4/knot-lib-version.m4
@@ -0,0 +1,16 @@
+# KNOT_LIB_VERSION([library-name], [current], [revision], [age])
+# --------------------------------------------------------------
+# See https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+
+AC_DEFUN([KNOT_LIB_VERSION],
+[
+ m4_define([LIBNAME], patsubst($1, [^lib], []))dnl
+ AC_SUBST([$1_VERSION_INFO], ["-version-info $2:$3:$4"])
+ AC_SUBST([$1_SOVERSION], ["$2"])
+ AS_CASE([$host_os],
+ [darwin*], [AC_SUBST([$1_SONAME], ["$1.$2.dylib"])],
+ [cygwin*], [AC_SUBST([$1_SONAME], [["cyg]LIBNAME[-$2.dll"]])],
+ [msys*], [AC_SUBST([$1_SONAME], [["msys-]LIBNAME[-$2.dll"]])],
+ [*], [AC_SUBST([$1_SONAME], ["$1.so.$2"])]
+ )
+])