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c++windowsdllporting
Mohit Thakur
Mohit Thakur

Reputation: 596

Build Procedure for dll of GnuMP library on Windows

Can somebody let me know the process of building the gnuMP Libraries on Windows. I required a DLL of gnuMP Library but the build system does't allow me to create the dll library for windows OS. I have tried to build using the MinGW and Cygwin but dll is not created.

Upvotes: 2

Views: 217

Answers (1)

Pradip Das
Pradip Das

Reputation: 738

I have faced the same issue. But I have managed to Build dll of GnuMP library on Windows

On windows systems ‘--cygwin*’, ‘--mingw*’ and ‘--pw32*’ by default GMP builds only a static library, but a DLL can be built instead using

./configure --disable-static --enable-shared

Static and DLL libraries can't both be built, since certain export directives in gmp.h must be different. A MINGW DLL build of GMP can be used with Microsoft C. Libtool doesn't install a .lib format import library, but it can be created with MS lib as follows, and copied to the install directory. Similarly for libmp and libgmpxx.

cd .libs
lib /def:libgmp-3.dll.def /out:libgmp-3.lib

MINGW uses the C runtime library ‘msvcrt.dll’ for I/O, so applications wanting to use the GMP I/O routines must be compiled with ‘cl /MD’ to do the same. If one of the other C runtime library choices provided by MS C is desired then the suggestion is to use the GMP string functions and confine I/O to the application.

Upvotes: 3

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