On Sat, 2 Jun 2012, Jan Beich wrote:

The following reply was made to PR ports/163454; it has been noted by GNATS.

From: Jan Beich <[email protected]>
To: [email protected]
Cc:
Subject: Re: ports/163454: [patch] www/firefox-beta: unbreak with libc++
Date: Sat, 02 Jun 2012 20:15:24 +0700

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unbreak with /head@r236444


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Content-Disposition: attachment; filename=unwind.diff

Index: Mk/bsd.gecko.mk
===================================================================
RCS file: /a/.csup/ports/Mk/bsd.gecko.mk,v
retrieving revision 1.59
diff -u -p -r1.59 bsd.gecko.mk
--- Mk/bsd.gecko.mk     1 Jun 2012 05:15:42 -0000       1.59
+++ Mk/bsd.gecko.mk     2 Jun 2012 13:13:43 -0000
@@ -783,6 +797,7 @@
        @if [ -f ${MOZSRC}/${subdir}/config/system-headers ] ; then \
                ${ECHO_CMD} "fenv.h" >> 
${MOZSRC}/${subdir}/config/system-headers ; \
                ${ECHO_CMD} "pthread_np.h" >> 
${MOZSRC}/${subdir}/config/system-headers ; \
+               ${ECHO_CMD} "unwind.h" >> 
${MOZSRC}/${subdir}/config/system-headers ; \
        fi
 .endfor
        @${REINPLACE_CMD} -e 's|%%MOZILLA%%|${MOZILLA}|g' \
Index: www/firefox/files/patch-xpcom_base_nsStackWalk.cpp
===================================================================
RCS file: /a/.csup/ports/www/firefox/files/patch-xpcom_base_nsStackWalk.cpp,v
retrieving revision 1.2
diff -u -p -r1.2 patch-xpcom_base_nsStackWalk.cpp
--- www/firefox/files/patch-xpcom_base_nsStackWalk.cpp  22 Mar 2011 15:24:49 
-0000      1.2
+++ www/firefox/files/patch-xpcom_base_nsStackWalk.cpp  2 Jun 2012 12:45:25 
-0000
@@ -9,3 +9,11 @@
  #include <dlfcn.h>
  #endif

+@@ -1123,6 +1123,7 @@ NS_StackWalk(NS_WalkStackCallback aCallb
+
+ #elif defined(HAVE__UNWIND_BACKTRACE)
+
++#define _GNU_SOURCE
+ // libgcc_s.so symbols _Unwind_Backtrace@@GCC_3.3 and _Unwind_GetIP@@GCC_3.0
+ #include <unwind.h>
+

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Installs successfully here:

FreeBSD FBSD10 10.0-CURRENT FreeBSD 10.0-CURRENT #20 r236371: Thu May 31 21:34:10 EDT 2012 root@FBSD10:/usr/obj/usr/src/sys/MYKERNEL amd64

Thank you for your help in testing and reporting bugs, and we hope you
enjoy using Firefox.
The Maintainers (gecko@)
======================================================================
===>   Registering installation for firefox-13.0.b6,1


with USE_GCC=        4.6+ in the Makefile.

Hth
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