Re: Compiling and linking problems

Dear Nigel, dear Chris,

The problem happened with or without parameters to ./configure. There were no differences. 
Please find attached the generated config.h.




Thanks,

Mike

> Am 16.03.2018 um 17:25 schrieb Nigel Galloway <[email protected]>:
> 
> Does it link if you don't pass any parameters to ./configure? If it does then just throw the shared libraries away if you really don't want them.
> 
> If it doesn't and you want an immediate solution the source code for gmtime_r and strtok_r is available, just add it to your glpk compilation somewhere.
> 
> The problem is that  gmtime_r and strtok_r are optional POSIX features only required for systems using POSIX threads, which windows doesn't. You probably want to use winpthreads which may be as simple as adding -l pthread or not. If it isn't you may get a better answer from mingw help.
> From: Help-glpk <[email protected] <mailto:[email protected]>> on behalf of [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]>>
> Sent: 15 March 2018 13:35:31
> To: [email protected] <mailto:[email protected]>
> Subject: [Help-glpk] Compiling and linking problems
>  
> 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 <http://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 <http://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 <http://mingw.org/> GCC-6.3.0-1) 
>  
>  
> Any suggestions are welcome!
>  
> Thanks,
>  
> Mike

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