workaround-fix-linking-without-gl.patch

diff --git a/libs/librepcb/editor/3d/opengltriangleobject.cpp b/libs/librepcb/editor/3d/opengltriangleobject.cpp
index 5f777ec59..6daab91d9 100644
--- a/libs/librepcb/editor/3d/opengltriangleobject.cpp
+++ b/libs/librepcb/editor/3d/opengltriangleobject.cpp
@@ -81,7 +81,7 @@ void OpenGlTriangleObject::draw(QOpenGLFunctions& gl,
   int vertexLocation = program.attributeLocation("a_position");
   program.enableAttributeArray(vertexLocation);
   program.setAttributeBuffer(vertexLocation, GL_FLOAT, 0, 3, sizeof(QVector3D));
-  gl.glDrawArrays(GL_TRIANGLES, 0, mCount);
+//  gl.glDrawArrays(GL_TRIANGLES, 0, mCount);
 }
 
 /*******************************************************************************
diff --git a/libs/librepcb/editor/widgets/openglview.cpp b/libs/librepcb/editor/widgets/openglview.cpp
index e00e976cd..6e1c804bd 100644
--- a/libs/librepcb/editor/widgets/openglview.cpp
+++ b/libs/librepcb/editor/widgets/openglview.cpp
@@ -241,21 +241,21 @@ void OpenGlView::initializeGL() {
              mProgram.log().split('\n', QString::SkipEmptyParts)) {
       qCritical().noquote() << "OpenGL:" << line;
     }
-    glClearColor(1, 0, 0, 1);
+//    glClearColor(1, 0, 0, 1);
     return;
   }
 
   // Use a background color which ensures good contrast to both black and white
   // STEP models.
-  glClearColor(0.9, 0.95, 1.0, 1);
+//  glClearColor(0.9, 0.95, 1.0, 1);
 
   // Set OpenGL options.
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_MULTISAMPLE);
-  glEnable(GL_BLEND);
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-  glEnable(GL_LINE_SMOOTH);
-  glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
+//  glEnable(GL_DEPTH_TEST);
+//  glEnable(GL_MULTISAMPLE);
+//  glEnable(GL_BLEND);
+//  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+//  glEnable(GL_LINE_SMOOTH);
+//  glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
 }
 
 void OpenGlView::resizeGL(int w, int h) {
@@ -273,7 +273,7 @@ void OpenGlView::paintGL() {
   }
 
   // Clear color and depth buffer.
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+//  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
   // Set modelview-projection matrix.
   mProgram.setUniformValue("mvp_matrix", mProjection * mTransform);