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authorStephen Sinclair <radarsat1@gmail.com>2016-01-24 14:47:14 -0300
committerStephen Sinclair <radarsat1@gmail.com>2016-02-03 16:36:19 -0300
commitb791569275369b20aee2ef28716153d6668cb162 (patch)
tree3d3ded941cce91c7ccdc2c42d8e0f4ca89b86906 /configure.ac
parentaadd9737888eac663343519154bcf67e04518cd6 (diff)
Use libtools version info.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac23
1 files changed, 23 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index a52ddb0..85e4f53 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,6 +5,29 @@ AC_CONFIG_SRCDIR(RtMidi.cpp)
AC_CONFIG_FILES([rtmidi-config librtmidi.pc Makefile tests/Makefile])
AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
+# libtool version: current:revision:age
+#
+# If the library source code has changed at all since the last update, then
+# increment revision (`c:r:a' becomes `c:r+1:a').
+#
+# If any interfaces have been added, removed, or changed since the last update,
+# increment current, and set revision to 0.
+#
+# If any interfaces have been added since the last public release, then
+# increment age.
+#
+# If any interfaces have been removed since the last public release, then set
+# age to 0.
+m4_define([lt_current], 3)
+m4_define([lt_revision], 0)
+m4_define([lt_age], 0)
+
+m4_define([lt_version_info], [lt_current:lt_revision:lt_age])
+m4_define([lt_current_minus_age], [m4_eval(lt_current - lt_age)])
+
+SO_VERSION=lt_version_info
+AC_SUBST(SO_VERSION)
+
# Enable some nice automake features if they are available
m4_ifdef([AM_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])