[Buildroot] [PATCH] webkit: Fix build issue with gcc-4.6 and above

[Valentine Barshak <gvaxon@gmail.com>]

This fixes the "Unknown parameter for tags/attrs" build error.
Backported from commit 88e08c43d0200a4b06a298b7d2541965eebc0afe

[PATCH] 2011-04-17  Thierry Reding
<thierry.reding@avionic-design.de>

  Reviewed by Adam Barth.

  Fix build with GCC 4.6.

  * dom/make_names.pl: Execute preprocessor without the -P option. The
  preprocessor in GCC 4.6 eats empty lines, effectively breaking the
  parsing performed by this script. Dropping the -P option when invoking
  the preprocessor keeps the empty lines but as a side-effect also adds
  additional linemarkers.

  From the cpp manpage:

    -P  Inhibit generation of linemarkers in the output from the
        preprocessor. This might be useful when running the preprocessor
        on something that is not C code, and will be sent to a program
        which might be confused by the linemarkers.

  The linemarkers are not problematic, however, because the script
  properly handles them by ignoring all lines starting with a #.

Signed-off-by: Valentine Barshak <gvaxon@gmail.com>
---
 package/webkit/webkit-fix-build-with-gcc-4-6.patch | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 package/webkit/webkit-fix-build-with-gcc-4-6.patch

diff --git a/package/webkit/webkit-fix-build-with-gcc-4-6.patch b/package/webkit/webkit-fix-build-with-gcc-4-6.patch
new file mode 100644
index 0000000..15f32d9
--- /dev/null
+++ b/package/webkit/webkit-fix-build-with-gcc-4-6.patch
@@ -0,0 +1,45 @@
+Backported from commit 88e08c43d0200a4b06a298b7d2541965eebc0afe:
+Removed the ChangeLog part.
+
+From: "commit-queue at webkit.org"
+ <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
+Date: Mon, 18 Apr 2011 06:53:23 +0000
+Subject: [PATCH] 2011-04-17  Thierry Reding 
+ <thierry.reding@avionic-design.de>
+
+        Reviewed by Adam Barth.
+
+        Fix build with GCC 4.6.
+
+        * dom/make_names.pl: Execute preprocessor without the -P option. The
+        preprocessor in GCC 4.6 eats empty lines, effectively breaking the
+        parsing performed by this script. Dropping the -P option when invoking
+        the preprocessor keeps the empty lines but as a side-effect also adds
+        additional linemarkers.
+
+        From the cpp manpage:
+
+          -P  Inhibit generation of linemarkers in the output from the
+              preprocessor. This might be useful when running the preprocessor
+              on something that is not C code, and will be sent to a program
+              which might be confused by the linemarkers.
+
+        The linemarkers are not problematic, however, because the script
+        properly handles them by ignoring all lines starting with a #.
+
+diff --git a/WebCore/dom/make_names.pl b/Source/WebCore/dom/make_names.pl
+index 836137e..50386e0 100755
+--- a/WebCore/dom/make_names.pl
++++ b/WebCore/dom/make_names.pl
+@@ -54,7 +54,7 @@ if ($ENV{CC}) {
+ } else {
+     $gccLocation = "/usr/bin/gcc";
+ }
+-my $preprocessor = $gccLocation . " -E -P -x c++";
++my $preprocessor = $gccLocation . " -E -x c++";
+ 
+ GetOptions(
+     'tags=s' => \$tagsFile, 
+-- 
+1.7.11.4
+
-- 
1.7.11.4