[gobject-introspection] Silently skip #pragma directives when scanning sources.

[Johan Dahlin <johan src gnome org>]

commit 170fed201a406395392217928c9fe0caa9c5921e
Author: Pavel Holejsovsky <pavel holejsovsky gmail com>
Date:   Thu Sep 30 11:38:55 2010 +0200

    Silently skip #pragma directives when scanning sources.
    
    This is useful e.g. on cygwin, where system headers use #pragma directives,
    causing annoying false-alarm errors during every g-ir-scanner run.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=630994

 giscanner/scannerlexer.l |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/giscanner/scannerlexer.l b/giscanner/scannerlexer.l
index 5b68ca0..e06bc85 100644
--- a/giscanner/scannerlexer.l
+++ b/giscanner/scannerlexer.l
@@ -78,6 +78,7 @@ stringtext				([^\\\"])|(\\.)
 
 "#define "[a-zA-Z_][a-zA-Z_0-9]*"("	{ yyless (yyleng - 1); return FUNCTION_MACRO; }
 "#define "[a-zA-Z_][a-zA-Z_0-9]*	{ return OBJECT_MACRO; }
+"#pragma ".*"\n"			{ /* Ignore pragma. */ }
 
 "# "[0-9]+" ".*"\n"			{ process_linemarks(scanner); }
 "#"			                { }