Can't compile under MingW need to move MPFR check before GMP

[robe2]

I mentioned this in PostGIS ticket - http://trac.osgeo.org/postgis/ticket/2333

The issues still persists in 1.0.5. Even though its mingw I'm trying to compile on, I read on the GMP or was it MPFR that this is an issue on other platforms. So might be more because I have custom paths for GMP/MPFR why I notice this.

Linking CXX shared library libSFCGAL.dll
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(init2.o):init2.c:(.text+0x70): undefined reference to `__gmp_get_memory_functions'
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(clear.o):clear.c:(.text+0x1e): undefined reference to `__gmp_get_memory_functions'
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(div.o):div.c:(.text+0x234): undefined reference to `__gmpn_divrem'
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(round_prec.o):round_prec.c:(.text+0xa76): undefined reference to `__gmp_get_memory_functions'
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(mulders.o):mulders.c:(.text+0x5c2): undefined reference to `__gmpn_divrem'
c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(mulders.o):mulders.c:(.text+0x94c): undefined reference to `__gmpn_divrem'
c:/ming64gcc48/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.0/../../../../x86_64-w64-mingw32/bin/ld.exe: c:/ming64gcc48/projects/CGAL/rel-mpfr-3.1.2w64gcc48/lib/libmpfr.a(mulders.o): bad reloc address 0x0 in section `.pdata'
collect2.exe: error: ld returned 1 exit status

To fix the issue, I always have to edit the src/CMakeLists.txt
changing the order of GMP and MPFR changes so MPFR gets checked before GMP like so:

if( ${SFCGAL_WITH_MPFR} )
    target_link_libraries( SFCGAL ${MPFR_LIBRARIES} )
endif( ${SFCGAL_WITH_MPFR} )

if( ${SFCGAL_WITH_GMP} )
    target_link_libraries( SFCGAL ${GMP_LIBRARIES} )
endif( ${SFCGAL_WITH_GMP} )

[vmora]

Hi robe, would you mind sending a PR ?

[robe2]

What's a PR?

[vmora]

PR: Pull Request

1 - fork this repo on your github (top right of this page), to create your own github sfcgal repo
2 - then clone your fork on your machine
3 - make your changes, test and commit your changes to your github sfcgal repo
4 - on you github repo, you will then have a "create pull request"

[vmora]

Your PR as been merged (cherry-picked). Thanks.