ports/177224: building www/firefox fails

[Tsurutani Naoki]

The following reply was made to PR ports/177224; it has been noted by GNATS.

From: Tsurutani Naoki <turutani at scphys.kyoto-u.ac.jp>
To: bug-followup at FreeBSD.org, turutani at scphys.kyoto-u.ac.jp,
	gecko at freebsd.org
Cc:  
Subject: Re: ports/177224: building www/firefox fails
Date: Fri, 29 Mar 2013 18:01:38 +0900

 building with lang/clang-devel fails (*1).
 building with lang/clang successfully finishes, but firefox crashes
  with segmentation fault just after running it.
 building without clang successfully finishes, and no errors.
 I want a knob to choice the compiler.
 
 (*1) __attribute__((used)) might be ignored with clang-devel (clang 3.3) ?
 using [[gnu::used]] instead of above failed:
 % make
 ...
 /usr/local/work/usr/ports/www/firefox/work/mozilla-
 release/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_gcc_x86_unix.cpp:12:13: error:
       '__used__' attribute cannot be applied to types
 static void ATTRIBUTE_USED __attribute__ ((regparm(3)))
             ^
 ../../../../../../../xpcom/reflect/xptcall/src/md/unix/xptc_gcc_x86_unix.h:19:26: note:
       expanded from macro 'ATTRIBUTE_USED'
 #define ATTRIBUTE_USED [[gnu::__used__]]
                          ^
 1 error generated.
 %