>Number:         36872
>Category:       pkg
>Synopsis:       png-1.2.19 build failure on Intel Mac OS X (gcc4 issue) --PATCHES INCLUDED
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 31 09:50:00 +0000 2007
>Originator:     Mark E. Perkins
>Release:        Darwin 8.10.1 i386
>Organization:
>Environment:


System: Darwin owl.fringe.mep 8.10.1 Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386 i386


>Description:


Inline assembly code is broken with gcc4 (apparently this is GCC Bug #25221):

gcc -dynamiclib  -o .libs/libpng12.0.19.0.dylib  .libs/libpng12_la-png.o .libs/libpng12_la-pngset.o .libs/libpng12_la-pngget.o .libs/libpng12_la-pngrutil.o .libs/libpng12_la-pngtrans.o .libs/libpng12_la-pngwutil.o .libs/libpng12_la-pngread.o .libs/libpng12_la-pngrio.o .libs/libpng12_la-pngwio.o .libs/libpng12_la-pngwrite.o .libs/libpng12_la-pngrtran.o .libs/libpng12_la-pngwtran.o .libs/libpng12_la-pngmem.o .libs/libpng12_la-pngerror.o .libs/libpng12_la-pngpread.o .libs/libpng12_la-pnggccrd.o  -L/usr/pkgsrc/graphics/png/work/.buildlink/lib -lz  -install_name  /usr/pkg/lib/libpng12.0.dylib -Wl,-compatibility_version -Wl,20 -Wl,-current_version -Wl,20.0
ld: Undefined symbols:
_HBClearMask
_LBCarryMask
_amask0_8_0
_amask2_3_3
_amask4_2_2
_amask5_3_0
_amask6_2_0
_mask16_0
_mask16_1
_mask24_0
_mask24_1
_mask24_2
_mask32_0
_mask32_1
_mask32_2
_mask32_3
_mask48_0
_mask48_1
_mask48_2
_mask48_3
_mask48_4
_mask48_5
_mask8_0
/usr/bin/libtool: internal link edit command failed
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/graphics/png/work/libpng-1.2.19
*** Error code 1



>How-To-Repeat:


cd /usr/pkgsrc/graphics/png
bmake



>Fix:


Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/graphics/png/Makefile,v
retrieving revision 1.92
diff -b -u -r1.92 Makefile
--- Makefile    29 Aug 2007 20:58:26 -0000      1.92
+++ Makefile    31 Aug 2007 09:37:31 -0000
@@ -28,6 +28,15 @@
 CPPFLAGS+=     -DPNG_NO_ASSEMBLER_CODE
 .endif
 
+# Disable inline assembly on i386 until GCC Bug #25221 is fixed.
+# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25221
+.include "../../mk/compiler.mk"
+.if !empty(CC_VERSION:Mgcc-4.*)
+CPPFLAGS+=     -DPNG_NO_ASSEMBLER_CODE
+.endif
+
+# end "keep this in sync ..."
+
 SUBST_CLASSES+=                rpathfix
 SUBST_FILES.rpathfix=  scripts/libpng-config.in
 SUBST_MESSAGE.rpathfix=        Adding rpath to libpng-config.


Index: buildlink3.mk
===================================================================
RCS file: /cvsroot/pkgsrc/graphics/png/buildlink3.mk,v
retrieving revision 1.20
diff -b -u -r1.20 buildlink3.mk
--- buildlink3.mk       3 Jan 2007 20:38:46 -0000       1.20
+++ buildlink3.mk       31 Aug 2007 09:37:31 -0000
@@ -26,6 +26,16 @@
 .  if ${MACHINE_ARCH} != "i386"
 CPPFLAGS+=     -DPNG_NO_ASSEMBLER_CODE
 .  endif
+
+# Disable inline assembly on i386 until GCC Bug #25221 is fixed.
+# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25221
+.include "../../mk/compiler.mk"
+.      if !empty(CC_VERSION:Mgcc-4.*)
+CPPFLAGS+=     -DPNG_NO_ASSEMBLER_CODE
+.      endif
+
+# end "keep this in sync ..."
+
 .endif # PNG_BUILDLINK3_MK
 
 .include "../../devel/zlib/buildlink3.mk"