Bug 418131 - "Need a way to detect GTK+ version so we don't break users on major update" [p=ventnor.bugzilla@yahoo.com.au (Michael Ventnor) r=bsmedberg sr=dveditz a=blocking-firefox3+]

toolkit/mozapps/update/src/nsUpdateService.js.in

@@ -1022,18 +1022,26 @@ function UpdateService() {
     LOG("UpdateService", "XPCOM ABI unknown: updates are not possible.");
   }
 
-  try {
-    var sysInfo =
-      Components.classes["@mozilla.org/system-info;1"]
+  var osVersion;
+  var sysInfo = Components.classes["@mozilla.org/system-info;1"]
                           .getService(Components.interfaces.nsIPropertyBag2);
-
-    gOSVersion = encodeURIComponent(sysInfo.getProperty("name") + " " +
-                                    sysInfo.getProperty("version"));
+  try {
+    osVersion = sysInfo.getProperty("name") + " " + sysInfo.getProperty("version");
   }
   catch (e) {
     LOG("UpdateService", "OS Version unknown: updates are not possible.");
   }
 
+  if (osVersion) {
+    try {
+      osVersion += " (" + sysInfo.getProperty("secondaryLibrary") + ")";
+    }
+    catch (e) {
+      // Not all platforms have a secondary widget library, so an error is nothing to worry about.
+    }
+    gOSVersion = encodeURIComponent(osVersion);
+  }
+
 #ifdef XP_MACOSX
   // Mac universal build should report a different ABI than either macppc
   // or mactel.

xpcom/base/Makefile.in

@@ -146,3 +146,7 @@ include $(topsrcdir)/config/rules.mk
 
 DEFINES		+= -D_IMPL_NS_COM
 
+ifneq (,$(filter gtk2,$(MOZ_WIDGET_TOOLKIT)))
+CXXFLAGS        += $(MOZ_GTK2_CFLAGS)
+endif
+

xpcom/base/nsSystemInfo.cpp

@@ -39,6 +39,11 @@
 #include "nsSystemInfo.h"
 #include "prsystem.h"
 #include "nsString.h"
+#include "prprf.h"
+
+#ifdef MOZ_WIDGET_GTK2
+#include <gtk/gtk.h>
+#endif
 
 nsSystemInfo::nsSystemInfo()
 {
@@ -75,6 +80,15 @@ nsSystemInfo::Init()
         NS_WARNING("PR_GetSystemInfo failed");
     }
 
+#ifdef MOZ_WIDGET_GTK2
+    // This must be done here because NSPR can only separate OS's when compiled, not libraries.
+    char gtkver[15];
+    PR_snprintf(gtkver, sizeof(gtkver), "GTK %d.%d.%d", gtk_major_version, gtk_minor_version, gtk_micro_version);
+    rv = SetPropertyAsACString(NS_ConvertASCIItoUTF16("secondaryLibrary"),
+                               nsDependentCString(gtkver));
+    NS_ENSURE_SUCCESS(rv, rv);
+#endif
+   
     return NS_OK;
 }