From f0ed11ec49b6c5b3a52bc666e31ff9791dee77cf Mon Sep 17 00:00:00 2001
From: Marvin W <git@larma.de>
Date: Wed, 16 Mar 2022 08:33:13 -0600
Subject: Fix build on Vala < 0.50 and pre-release Vala versions

---
 CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c9525870..b5734c45 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -199,7 +199,10 @@ include(MultiFind)
 include(GlibCompileResourcesSupport)
 
 find_package(GLib ${GLib_GLOBAL_VERSION} REQUIRED)
-set(CMAKE_VALA_FLAGS "${CMAKE_VALA_FLAGS} --target-glib=${GLib_VERSION}")
+string(REGEX REPLACE "^([0-9]+)\\.[0-9]+(\\.[0-9]+)?" "\\1" GLib_MAJOR_VERSION "${GLib_VERSION}")
+string(REGEX REPLACE "^[0-9]+\\.([0-9]+)(\\.[0-9]+)?" "\\1" GLib_MINOR_VERSION "${GLib_VERSION}")
+math(EXPR GLib_LAST_RELEASE_MINOR_VERSION "${GLib_MINOR_VERSION} / 2 * 2")
+set(CMAKE_VALA_FLAGS "${CMAKE_VALA_FLAGS} --target-glib=${GLib_MAJOR_VERSION}.${GLib_LAST_RELEASE_MINOR_VERSION}")
 
 add_subdirectory(qlite)
 add_subdirectory(xmpp-vala)
-- 
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