Switch Qt versions on CI.

.github/workflows/continuous.yml

@@ -15,6 +15,7 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v4  
       with:
+        version: '5.15.*'
         cache: 'true'
     - name: Get number of CPU cores
       uses: SimenB/github-actions-cpu-cores@v1
@@ -29,7 +30,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Install Qt
-      uses: jurplel/install-qt-action@v3  
+      uses: jurplel/install-qt-action@v4
       with:
         cache: 'true'
     - name: Cache Library

leocad.pro

@@ -164,19 +164,6 @@ macx {
 	DEFINES += LC_DISABLE_UPDATE_CHECK=1
 }
 
-# AGL is not included since 26.0 and Qt5 isn't going to be fixed.
-macx {
-	# QMAKE_MAC_SDK examples: "macosx26.0", "macosx26", "macosx27.1"
-	SDK_TAG        = $$QMAKE_MAC_SDK
-	SDK_VER_STR    = $$replace(SDK_TAG, "macosx", "")
-	SDK_VER_MAJOR  = $$section(SDK_VER_STR, ., 0, 0)
-
-	greaterThan(SDK_VER_MAJOR, 25) {
-		QMAKE_LIBS_OPENGL -= -framework AGL
-		LIBS -= -framework AGL
-	}
-}
-
 ios {
 	DEFINES += LC_DISABLE_RENDER_DIALOG=1
 	DEFINES += LC_DISABLE_BLENDER=1