[mapserver-users] undefined reference to `__sync_sub_and_fetch_4'

[Umberto Nicoletti]

I have opened a pull request that should fix the error you're seeing:

https://github.com/mapserver/mapserver/pull/4502

let me know if it works so that I can merge it.
Btw, for those interested, the code snippet I asked you to compile earlier
did not check correctly for the presence of __sync_fetch_and_add, this one
does (it should not compile for the both of you):

int main () {
long x;long y=__sync_fetch_and_add(&x,1);
return 0;
}


Thanks,
Umberto


On Thu, Oct 18, 2012 at 8:11 PM, Thiago Tiedtke dos Reis
<tiedtke at gmail.com>wrote:

> Hi Umberto,
>
> My config.log is attached.
>
> Thanks!
>
> Best regards,
>
>
> Tiedtke
>
> 2012/10/18 Umberto Nicoletti <umberto.nicoletti at gmail.com>
>
>> could you share the configure.log file? I'll try to work on this later
>> today.
>>
>> Thanks,
>> Umberto
>>
>>
>> On Thursday, October 18, 2012, Thiago Tiedtke dos Reis wrote:
>>
>>> Hi,
>>>
>>> In my case (Msys/Mingw under Windows 7 32bit), no error was presented,
>>> and the object a.exe was generated.
>>>
>>> My env:
>>>
>>> Tiedtke at Tiedtke-Note ~
>>> $ gcc -v
>>> Using built-in specs.
>>> COLLECT_GCC=C:\MinGW\bin\gcc.exe
>>>
>>> COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.7.0/lto-wrapper.exe
>>> Target: mingw32
>>> Configured with: ../gcc-4.7.0/configure
>>> --enable-languages=c,c++,ada,fortran,obj
>>> c,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared
>>> --enable-libgo
>>> mp --disable-win32-registry --enable-libstdcxx-debug
>>> --disable-build-poststage1-
>>> with-cxx --enable-version-specific-runtime-libs --build=mingw32
>>> --prefix=/mingw
>>> Thread model: win32
>>> gcc version 4.7.0 (GCC)
>>>
>>> Regards,
>>>
>>> Tiedtke
>>>
>>>
>>> 2012/10/18 Umberto Nicoletti <umberto.nicoletti at gmail.com>
>>>
>>> Could you try to compile the following code:
>>>
>>> /* begin */
>>> int
>>> main ()
>>> {
>>> int x;__sync_fetch_and_add(&x,1);
>>>   ;
>>>   return 0;
>>> }
>>> /* end */
>>>
>>> How to compile: save to test.c and then run:
>>>
>>> gcc test.c
>>>
>>> Best regards,
>>> Umberto
>>>
>>> On Thu, Oct 18, 2012 at 1:01 PM, Thiago Tiedtke dos Reis <
>>> tiedtke at gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> I having the same problem when trying to compile the mapserver with
>>> msys/mingw under Ms windows 7 32bit.
>>>
>>> Regards,
>>>
>>> Thiago Tiedtke dos Reis
>>> Em 17/10/2012 14:32, "Umberto Nicoletti" <umberto.nicoletti at gmail.com>
>>> escreveu:
>>>
>>>  David,
>>> what is your os/platform?
>>>
>>> On Oct 17, 2012 6:30 PM, "David Quinn" <daithiquinn at gmail.com> wrote:
>>> >
>>> > Hello List,
>>> >
>>> > I'm getting the following error when I try to compile
>>> mapserver-6.2.0-rc1
>>> >
>>> > $make
>>> > /bin/sh ./libtool --mode=link --tag=CXX g++ -rpath /home/david/lib
>>> > shp2img.lo libmapserver.la -o shp2img
>>> > libtool: link: g++ .libs/shp2img.o -o .libs/shp2img
>>> > ./.libs/libmapserver.so -L/home/david/lib /home/david/lib/libgd.so
>>> > -L/usr/lib /home/david/lib/libproj.so /home/david/lib/libgdal.so
>>> > -L/home/david -L/usr/kerberos/lib /usr/lib/libexpat.so
>>> > /home/david/lib/libgif.so /home/david/lib/libcurl.so
>>> > /home/david/lib/libgeos_c.so /home/david/lib/libgeos.so
>>> > /home/david/lib/libxml2.so /home/david/lib/libfreetype.so
>>> > -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lcairo -lXpm -lfontconfig
>>> > -lpng12 -lsqlite3 -lodbc -lodbcinst -ljpeg -lpng -lpq -lpthread -lSM
>>> > -lICE -lX11 -lidn -lldap -lrt -lssl -lcrypto -ldl -lz -lbz2 -Wl,-rpath
>>> > -Wl,/home/david/lib
>>> > ./.libs/libmapserver.so: undefined reference to
>>> `__sync_sub_and_fetch_4'
>>> > collect2: ld returned 1 exit status
>>> > make: *** [shp2img] Error 1
>>> >
>>> > I originally got this error message: /usr/bin/ld: warning:
>>> > libcurl.so.3, needed by /home/david/lib/libgdal.so, may conflict with
>>> > libcurl.so.4 so I installed gdal from trunk, and reinstalled freetype,
>>> > giflib and libcurl
>>> >
>>> > I've also attached the output from my ./configure command:
>>> >
>>> >
>>> > -------------- Compiler Info -------------
>>> >   C compiler:                gcc -g    -Wall
>>> -Wdeclaration-after-statement
>>> >   C++ compiler:              g++ -g    -Wall
>>> >   Debug:                     -g
>>> >   Generic NINT:
>>> >
>>> >  -------------- Renderer Settings ---------
>>> >   OpenGL support:
>>> >   zlib support:
>>> >   png support:               -DUSE_PNG
>>> >   gif support:               -DUSE_GIF
>>> >   jpeg support:              -DUSE_JPEG
>>> >   freetype support:          -DUSE_FREETYPE
>>> >   iconv support:             -DUSE_ICONV
>>> >   AGG support:               internal
>>> >   GD support:                -DUSE_GD  -DUSE_GD_PNG -DUSE_GD_JPEG
>>> -DUSE_GD_GIF
>>> >   Cairo (SVG,PDF) support:   -DUSE_CAIRO
>>> >   Cairo SVG symbol support:
>>> >   KML support:               -DUSE_KML
>>> >
>>> >  -------------- Support Libraries ---------
>>> >   Proj.4 support:            -DUSE_PROJ
>>> >   Proj Fastpaths:
>>> >   Libxml2 support:           -DUSE_LIBXML2
>>> >   FriBidi support:
>>> >   Curl support:              -DUSE_CURL -DUSE_CURLOPT_PROXYAUTH
>>> >   FastCGI support:
>>> >   Exempi support:
>>> >   Threading support:
>>> >   GEO
>>>
>>>
>
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