[Bug target/66523] New: the new clang-based assembler in Xcode 7 on 10.11 fails on libobjc/NXConstStr.m

["howarth.at.gcc at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66523

            Bug ID: 66523
           Summary: the new clang-based assembler in Xcode 7 on 10.11
                    fails on libobjc/NXConstStr.m
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: howarth.at.gcc at gmail dot com
  Target Milestone: ---

Created attachment 35773
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35773&action=edit
proposed fix from Iain Sandoe

The new clang-based assembler in Xcode 7 fails to build libobjc in FSF gcc 5.1
with the following error...

/bin/sh ./libtool  --mode=compile
/sw/src/fink.build/gcc5-5.1.0-2/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc5-5.1.0-2/darwin_objdir/./gcc/
-B/sw/lib/gcc5/x86_64-apple-darwin15.0.0/bin/
-B/sw/lib/gcc5/x86_64-apple-darwin15.0.0/lib/ -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.0.0/include -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.0.0/sys-include   
/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/NXConstStr.m -c \
           -I. -I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc   -g -O2 -W
-Wall -Wwrite-strings -Wstrict-prototypes -DIN_GCC -DIN_TARGET_LIBS
-fno-strict-aliasing -fexceptions
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../gcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../gcc/config -I../.././gcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../libgcc -I../libgcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../include  -fgnu-runtime \
           -o NXConstStr.lo
libtool: compile:  /sw/src/fink.build/gcc5-5.1.0-2/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc5-5.1.0-2/darwin_objdir/./gcc/
-B/sw/lib/gcc5/x86_64-apple-darwin15.0.0/bin/
-B/sw/lib/gcc5/x86_64-apple-darwin15.0.0/lib/ -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.0.0/include -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.0.0/sys-include
/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/NXConstStr.m -c -I.
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc -g -O2 -W -Wall
-Wwrite-strings -Wstrict-prototypes -DIN_GCC -DIN_TARGET_LIBS
-fno-strict-aliasing -fexceptions
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../gcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../gcc/config -I../.././gcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../libgcc -I../libgcc
-I/sw/src/fink.build/gcc5-5.1.0-2/gcc-5.1.0/libobjc/../include -fgnu-runtime 
-fno-common -DPIC -o .libs/NXConstStr.o
/var/tmp//ccc9efWx.s:98:17: error: non-local symbol required in directive
        .no_dead_strip L_OBJC_Module
                       ^
make: *** [NXConstStr.lo] Error 1

The proposed patch from Iain Sandoe suppresses this assembler error and allows
libobjc to build under the clang-based assembler.