Re: [Help-glpk] Compiling and linking problems

[Heinrich Schuchardt]

Hello Mike,

https://stackoverflow.com/questions/6394512/standard-c-library-in-mingw
writes:
"MinGW is designed to build native Windows code, and as such it builds
against Windows' native libc."

So probably you want to change this line in src/env/stdc.c:

-#elif defined(__WOE__)
+#elif defined(__CYGWIN__) || defined(__MINGW32__) || defined(__WOE__)

Please, reply if this works. Then Andrew could update it in the next
version of GLPK.

There might be more lines needing such a change:

examples/glpsol.c:956:#ifndef __WOE__
src/env/time.c:88:#elif defined(__WOE__)
src/env/dlsup.c:107:#elif defined(__WOE__)
src/env/tls.c:85:#ifdef __WOE__
src/env/stdc.c:52:#elif defined(__WOE__)

Best regards

Heinrich


On 03/15/2018 02:35 PM, address@hidden wrote:
> Dear GLPK-Team,
> 
>  
> 
> I have got some problems with building glpk 4.65 on Windows 10 with
> msys/mingw.
> 
>  
> 
> I tried to build it with:
> 
> ./configure --enable-static --disable-shared
> 
> make
> 
>  
> 
> Configure finished without problems. All sources are compiled without
> errors.
> 
> But it ends with the following issues:
> 
> …
> 
> /bin/sh ../libtool --tag=CC   --mode=link gcc  -g -O2   -o glpsol.exe
> glpsol.o ../src/libglpk.la -lm
> 
> libtool: link: gcc -g -O2 -o glpsol.exe glpsol.o  ../src/.libs/libglpk.a
> 
> ../src/.libs/libglpk.a(libglpk_la-stdc.o): In function `glp_xgmtime':
> 
> C:\Users\Mike\Documents\Projekte\CMPL-1-12\Cmpl\data\glpk-4.65\src/env/stdc.c:81:
> undefined reference to `gmtime_r'
> 
> ../src/.libs/libglpk.a(libglpk_la-stdc.o): In function `glp_xstrtok':
> 
> C:\Users\Mike\Documents\Projekte\CMPL-1-12\Cmpl\data\glpk-4.65\src/env/stdc.c:93:
> undefined reference to `strtok_r'
> 
> collect2.exe: error: ld returned 1 exit status
> 
> make[2]: *** [glpsol.exe] Error 1
> 
> make[2]: Leaving directory
> `/Documents/Projekte/CMPL-1-12/Cmpl/data/glpk-4.65/examples'
> 
> make[1]: *** [all-recursive] Error 1
> 
> make[1]: Leaving directory
> `/Documents/Projekte/CMPL-1-12/Cmpl/data/glpk-4.65'
> 
> make: *** [all] Error 2  
> 
>  
> 
>  
> 
> I have seen that in stdc.c are alternative versions of some function
> depending on some defines. But I am not sure what is  do do. I was
> wondering that the defines are  set by the configure script.    
> 
> I use as mentioned before msys/mingw:
> 
> $ gcc -v
> 
> Using built-in specs.
> 
> COLLECT_GCC=C:\MinGW\bin\gcc.exe
> 
> COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/6.3.0/lto-wrapper.exe
> 
> Target: mingw32
> 
> Configured with: ../src/gcc-6.3.0/configure --build=x86_64-pc-linux-gnu
> --host=mingw32 --target=mingw32 --with-gmp=/mingw --with-mpfr
> --with-mpc=/mingw --with-isl=/mingw --prefix=/mingw
> --disable-win32-registry --with-arch=i586 --with-tune=generic
> --enable-languages=c,c++,objc,obj-c++,fortran,ada
> --with-pkgversion='MinGW.org GCC-6.3.0-1' --enable-static
> --enable-shared --enable-threads --with-dwarf2 --disable-sjlj-exceptions
> --enable-version-specific-runtime-libs --with-libiconv-prefix=/mingw
> --with-libintl-prefix=/mingw --enable-libstdcxx-debug --enable-libgomp
> --disable-libvtv --enable-nls
> 
> Thread model: win32
> 
> gcc version 6.3.0 (MinGW.org GCC-6.3.0-1)
> 
>  
> 
>  
> 
> Any suggestions are welcome!
> 
>  
> 
> Thanks,
> 
>  
> 
> Mike
> 
>  
> 
> 
> 
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