[Bug driver/33851] New: gcc-4.3 mishandles -compatibility_version on OS X

[Bug driver/33851] New: gcc-4.3 mishandles -compatibility_version on OS X

[benoit dot hudson at gmail dot com]

libtool adds all sorts of wonderful flags to gcc, whose purpose is unclear. 
Nonetheless, the following works on gcc-4.2.1 but fails on gcc version 4.3.0
20071012 (experimental) (GCC) on the same box, a Mac Pro running OS X 10.4:

g++ -m64 -dynamiclib -single_module ${wl}-flat_namespace ${wl}-undefined
${wl}suppress -o .libs/libgeometry.0.0.0.dylib 
.libs/libgeometry_la-predicates.o .libs/libgeometry_la-geometry-init.o  
-install_name  /usr/local/lib/libgeometry.0.dylib -Wl,-compatibility_version
-Wl,1 -Wl,-current_version -Wl,1.0

Reports:
/usr/bin/ld: unknown flag: -compatibility_version

That error is not there with gcc-4.2.1.

The impact is that I can't compile libraries using libtool and the latest
gcc-4.3 snapshot.


-- 
           Summary: gcc-4.3 mishandles -compatibility_version on OS X
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: benoit dot hudson at gmail dot com
GCC target triplet: i386-apple-darwin8.10.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33851

[Bug driver/33851] gcc-4.3 mishandles -compatibility_version on OS X

[benoit dot hudson at gmail dot com]

------- Comment #1 from benoit dot hudson at gmail dot com  2007-10-21 15:15 -------
I should specify: I can *compile* but I can't *link*.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33851

[Bug driver/33851] gcc-4.3 mishandles -compatibility_version on OS X

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-10-21 16:45 -------
Well, libtool needs to check the gcc version.  The issue is that in 4.3, we
call ld directly instead of libtool (Apple's libtool and not GNU libtool).  So
libtool needs to use dylib_compatibility_version/dylib_current_version instead
of just compatibility_version/current_version.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33851

[Bug driver/33851] gcc-4.3 mishandles -compatibility_version on OS X

[benoit dot hudson at gmail dot com]

------- Comment #3 from benoit dot hudson at gmail dot com  2007-10-21 18:23 -------
(In reply to comment #2)
> Well, libtool needs to check the gcc version.

I fully understand that morally, it's libtool's fault for releasing a program
that didn't correctly divine that gcc 4.3 would change the linker it uses
compared to versions since at least 3.3.  Shame on them.  Nonetheless, this
change does happen to break any package that shipped using any version of
libtool up to the present.  This adds up to rather a lot of free software. 
Will there be an easy workaround?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33851

[Bug driver/33851] gcc-4.3 mishandles -compatibility_version on OS X

[schneecrash+gcc-help at gmail dot com]

------- Comment #4 from schneecrash+gcc-help at gmail dot com  2007-11-27 15:19 -------
hi,

not just in 4.3, apparently ...

i'm seeing this same (?) issue on gcc 4.2.1 on osx 10.4.11 when building LIBSDL
... (fwiw, on OSX 10.5.11, all's OK)

i've

        uname -a
                Darwin scdev.local 8.11.0 Darwin Kernel Version 8.11.0: Wed Oct
10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC Power Macintosh powerpc

        gcc -v
                Using built-in specs.
                Target: powerpc-apple-darwin8
                Configured with: /Builds/apple/gcc_42-5531/obj/src/configure
--disable-checking -enable-werror --prefix=/usr --mandir=/usr/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^.-]*$/s/$/-4.2/
--with-gxx-include-dir=/usr/include/c++/4.0.0 --with-slibdir=/usr/lib
--build=i686-apple-darwin8 --program-prefix= --host=powerpc-apple-darwin8
--target=powerpc-apple-darwin8
                Thread model: posix
                gcc version 4.2.1 (Apple Inc. build 5531)

        glibtool --version
                ltmain.sh (GNU libtool) 1.5.25a (1.1220.2.472 2007/10/12
16:35:48)

@

        make

it dies with,

        gcc -dynamiclib  -o build/.libs/libSDL-1.2.0.11.1.dylib 
build/.libs/SDL.o build/.libs/SDL_error.o build/.libs/SDL_fatal.o
build/.libs/SDL_audio.o build/.libs/SDL_audiocvt.o build/.libs/SDL_audiodev.o
build/.libs/SDL_mixer.o build/.libs/SDL_mixer_MMX.o
build/.libs/SDL_mixer_MMX_VC.o build/.libs/SDL_mixer_m68k.o
build/.libs/SDL_wave.o build/.libs/SDL_cdrom.o build/.libs/SDL_cpuinfo.o
build/.libs/SDL_active.o build/.libs/SDL_events.o build/.libs/SDL_expose.o
build/.libs/SDL_keyboard.o build/.libs/SDL_mouse.o build/.libs/SDL_quit.o
build/.libs/SDL_resize.o build/.libs/SDL_rwops.o build/.libs/SDL_getenv.o
build/.libs/SDL_iconv.o build/.libs/SDL_malloc.o build/.libs/SDL_qsort.o
build/.libs/SDL_stdlib.o build/.libs/SDL_string.o build/.libs/SDL_thread.o
build/.libs/SDL_timer.o build/.libs/SDL_RLEaccel.o build/.libs/SDL_blit.o
build/.libs/SDL_blit_0.o build/.libs/SDL_blit_1.o build/.libs/SDL_blit_A.o
build/.libs/SDL_blit_N.o build/.libs/SDL_bmp.o build/.libs/SDL_cursor.o
build/.libs/SDL_gamma.o build/.libs/SDL_pixels.o build/.libs/SDL_stretch.o
build/.libs/SDL_surface.o build/.libs/SDL_video.o build/.libs/SDL_yuv.o
build/.libs/SDL_yuv_mmx.o build/.libs/SDL_yuv_sw.o build/.libs/SDL_joystick.o
build/.libs/SDL_nullevents.o build/.libs/SDL_nullmouse.o
build/.libs/SDL_nullvideo.o build/.libs/SDL_diskaudio.o
build/.libs/SDL_dummyaudio.o build/.libs/SDL_sysloadso.o
build/.libs/SDL_QuartzEvents.o build/.libs/SDL_QuartzGL.o
build/.libs/SDL_QuartzVideo.o build/.libs/SDL_QuartzWM.o
build/.libs/SDL_QuartzWindow.o build/.libs/SDL_QuartzYUV.o
build/.libs/SDL_x11dga.o build/.libs/SDL_x11dyn.o build/.libs/SDL_x11events.o
build/.libs/SDL_x11gamma.o build/.libs/SDL_x11gl.o build/.libs/SDL_x11image.o
build/.libs/SDL_x11modes.o build/.libs/SDL_x11mouse.o
build/.libs/SDL_x11video.o build/.libs/SDL_x11wm.o build/.libs/SDL_x11yuv.o
build/.libs/XF86DGA.o build/.libs/XF86DGA2.o build/.libs/SDL_dgaevents.o
build/.libs/SDL_dgamouse.o build/.libs/SDL_dgavideo.o build/.libs/XF86VMode.o
build/.libs/Xv.o build/.libs/Xinerama.o build/.libs/xme.o
build/.libs/SDL_systhread.o build/.libs/SDL_syssem.o build/.libs/SDL_sysmutex.o
build/.libs/SDL_syscond.o build/.libs/SDL_coreaudio.o
build/.libs/SDL_romaudio.o build/.libs/SDL_sysjoystick.o
build/.libs/AudioFilePlayer.o build/.libs/AudioFileReaderThread.o
build/.libs/CDPlayer.o build/.libs/SDLOSXCAGuard.o build/.libs/SDL_syscdrom.o
build/.libs/SDL_systimer.o   -Wl,-framework -Wl,OpenGL -Wl,-framework -Wl,Cocoa
-Wl,-framework -Wl,QuickTime -Wl,-framework -Wl,ApplicationServices
-Wl,-framework -Wl,Carbon -Wl,-framework -Wl,AudioToolbox -Wl,-framework
-Wl,AudioUnit -Wl,-framework -Wl,IOKit -install_name 
/usr/local/lib/libSDL-1.2.0.dylib -Wl,-compatibility_version -Wl,12
-Wl,-current_version -Wl,12.1
        /usr/libexec/gcc/powerpc-apple-darwin8/4.2.1/ld: unknown flag:
-compatibility_version
        collect2: ld returned 1 exit status
        make: *** [build/libSDL.la] Error 1


-- 

schneecrash+gcc-help at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33851