nixpkgs/pkgs/development/libraries/qt-5/5.5/qtbase/dlopen-gl.patch
Thomas Tuegel 9f62af0885 qt55.qtbase: fallback libGL path
If libGL is not found on the system library path, fall back to the
default Mesa driver.
2015-12-19 12:15:33 -06:00

18 lines
1.0 KiB
Diff

Index: qt-everywhere-opensource-src-5.5.1/qtbase/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
===================================================================
--- qt-everywhere-opensource-src-5.5.1.orig/qtbase/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
+++ qt-everywhere-opensource-src-5.5.1/qtbase/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
@@ -563,7 +563,12 @@ void (*QGLXContext::getProcAddress(const
{
extern const QString qt_gl_library_name();
// QLibrary lib(qt_gl_library_name());
+ // Check system library paths first
QLibrary lib(QLatin1String("GL"));
+ if (!lib.load()) {
+ // Fallback to Mesa driver
+ lib.setFileName(QLatin1String("@mesa@/lib/libGL"));
+ }
glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
}
}