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webkit: Fix build issue with gcc-4.6 and above

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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>
Tested-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Valentine Barshak 2012-10-15 03:51:47 +00:00 committed by Peter Korsgaard
parent 6d4cdb0810
commit 787278356d
1 changed files with 45 additions and 0 deletions
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@ -0,0 +1,45 @@
Backported from commit 88e08c43d0200a4b06a298b7d2541965eebc0afe:
Removed the ChangeLog part.
From: "commit-queue@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/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