From fd5db1994b4fec8919d946674ed241e053d21738 Mon Sep 17 00:00:00 2001
From: Emmanuele Bassi <ebassi@gnome.org>
Date: Wed, 28 Dec 2016 11:39:58 +0000
Subject: [PATCH] build: Set the appropriate versioning for the shared library

We use the same versioning scheme that GLib and GTK+ use, with the API
version as part of the file name, and the minor and micro version as
part of the soname. This allows parallel installation based on the API
major version, with ABI-compatible updates within the same API version.
---
 meson.build     | 5 +++++
 src/meson.build | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 223c854..0fd242a 100644
--- a/meson.build
+++ b/meson.build
@@ -29,6 +29,11 @@ endif
 
 emeus_binary_age = emeus_minor_version * 100 + emeus_micro_version
 
+# Shared library versioning
+current = emeus_binary_age - emeus_interface_age
+revision = emeus_interface_age
+libversion = '0.@0@.@1@'.format(current, revision)
+
 # Paths for the pkg-config file
 emeus_prefix = get_option('prefix')
 emeus_bindir = join_paths(emeus_prefix, get_option('bindir'))
diff --git a/src/meson.build b/src/meson.build
index 2e98178..dc11078 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -63,7 +63,8 @@ libemeus_private = static_library('emeus-private',
 
 libemeus = shared_library('emeus-@0@'.format(emeus_api_version),
                           sources: sources + solver_sources + private_headers,
-                          version: meson.project_version(),
+                          soversion: 0,
+                          version: libversion,
                           install: true,
                           dependencies: [ gtk_dep, mathlib_dep ],
                           c_args: common_cflags + debug_cflags + gtk_version_cflags + [