Fix debugger with GL to work with non-default locale

debugger/debuggermain.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDebuggerGUI.h"
 #include <QApplication>
 
 static void usage(const char * argv0) {
     SkDebugf("%s <input> \n", argv0);
     SkDebugf("    [--help|-h]: show this help message\n");
     SkDebugf("\n\n");
     SkDebugf("     input:     Either a directory or a single .skp file.\n");
 }
 
 int main(int argc, char *argv[]) {
+#ifndef SK_BUILD_FOR_WIN32
+    // Set numeric formatting to default. Otherwise shaders will have numbers with wrong comma.
+    // QApplication documentation recommends setlocale("LC_NUMERIC", "C") after QApplication
+    // constuction.  However, the components Qt calls (X11 libs, ..) will override that.
+    setenv("LC_NUMERIC", "C", 1);
+#endif
     QApplication a(argc, argv);
-
     QStringList argList = a.arguments();
 
     if (argList.count() <= 0) {
         return -1;  // should at least have command name
     }
 
     SkString input;
 
     QStringList::const_iterator iter = argList.begin();
 
@@ skipping 18 matching lines @@
         if (SkStrEndsWith(input.c_str(), ".skp")) {
             w.openFile(input.c_str());
         } else {
             w.setupDirectoryWidget(input.c_str());
         }
     }
 
     w.show();
     return a.exec();
 }