From bfb679de31ba276e0155153fc3efff9b8aacbbf6 Mon Sep 17 00:00:00 2001
From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Date: Wed, 12 May 2021 13:27:15 +0200
Subject: Bring back GTK+-2.0 and GTK+-3.0 build flavours.

---
 CMakeLists.txt | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e580790..7b509db 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,11 +17,44 @@ endif()
 
 # Check for prerequisites
 
-set(DEPS glib-2.0>=2.58 gtk+-3.0>=3.24 libayatana-ido3-0.4>=0.8.2)
+option(FLAVOUR_GTK2 "Build against GTK+-2.0" OFF)
+option(FLAVOUR_GTK3 "Build against GTK+-3.0" ON)
+
+if (FLAVOUR_GTK2)
+    set (FLAVOUR_GTK3 OFF)
+endif()
+if (FLAVOUR_GTK3)
+    set (FLAVOUR_GTK2 OFF)
+endif()
+
+if (FLAVOUR_GTK3)
+    set(DEPS
+        glib-2.0>=2.37
+        gtk+-3.0>=3.24
+        gmodule-2.0
+        gio-unix-2.0
+        libayatana-ido3-0.4>=0.8.2
+    )
+endif()
+if (FLAVOUR_GTK2)
+    set(DEPS
+        glib-2.0>=2.37
+        gtk+-2.0>=2.18
+        gmodule-2.0
+        gio-unix-2.0
+    )
+endif()
 
 find_package (PkgConfig REQUIRED)
 pkg_check_modules(PROJECT_DEPS REQUIRED ${DEPS})
 
+include(CheckLibraryExists)
+
+CHECK_LIBRARY_EXISTS(m sin "" HAVE_LIB_M)
+if (HAVE_LIB_M)
+    set(EXTRA_LIBS ${EXTRA_LIBS} m)
+endif (HAVE_LIB_M)
+
 # Set global variables
 
 include(GNUInstallDirs)
-- 
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