Fixed libgconf2 not available on Ubuntu 24.

.github/workflows/ubuntu.yaml

@@ -31,8 +31,11 @@ jobs:
     - name: Install dependencies
       run: |
         sudo apt update
-        sudo apt install -y ninja-build libgconf2-dev
+        sudo apt install -y ninja-build
 
+        if [ "$major_version" -le "22" ]; then
+          sudo apt install -y libgconf2-dev
+        fi
         major_version=$(lsb_release -rs | cut -d'.' -f1)
         if [ "$major_version" -ge "24" ]; then
           sudo apt install -y llvm-15 libjavascriptcoregtk-4.1-dev

CMakeLists.txt

@@ -115,11 +115,13 @@ elseif(APPLE)
             wpad_dhcp_mac.h)
     endif()
 elseif(UNIX)
+    pkg_check_modules(GConf gconf-2.0)
+    if (GConf_FOUND)
+        list(APPEND PROXYRES_SRCS config_gnome2.c config_gnome2.h)
+    endif()
     list(APPEND PROXYRES_SRCS
         config_env.c
         config_env.h
-        config_gnome2.c
-        config_gnome2.h
         config_gnome3.c
         config_gnome3.h
         config_kde.c
@@ -287,9 +289,10 @@ elseif(UNIX)
     pkg_check_modules(deps REQUIRED IMPORTED_TARGET glib-2.0)
     target_link_libraries(proxyres PkgConfig::deps)
 
-    pkg_check_modules(GConf REQUIRED gconf-2.0)
-    # Don't link libraries at compile time since we dynamically load them at runtime
-    target_include_directories(proxyres PRIVATE ${GConf_INCLUDE_DIRS})
+    if (GConf_FOUND)
+        # Don't link libraries at compile time since we dynamically load them at runtime
+        target_include_directories(proxyres PRIVATE ${GConf_INCLUDE_DIRS})
+    endif()
 
     pkg_search_module(JSCoreGTK REQUIRED javascriptcoregtk-4.1 javascriptcoregtk-4.0 javascriptcoregtk-3.0 javascriptcoregtk-1.0)
     # Don't link libraries at compile time since we dynamically load them at runtime