c++ - Creating correct D3D11 library file for GCC -

c++ - Creating correct D3D11 library file for GCC -

what right way convert files d3d11.lib provided in directx sdk *.a gcc library format? i've tried mutual reimp method converting *.lib files *.a files, doesn't seem work.

step 1 involves creating definitions file:

bin\reimp -d d3d11.lib

let's want utilize d3d11createdevice function should provided in library. if open created definitions file seems ok:

library "d3d11.dll" exports (...) d3d11createdevice d3d11createdeviceandswapchain (...)

next seek create *.a file using definitions file , original lib file:

bin\dlltool -v -d d3d11.def -l libd3d11.a

this in fact produce valid library (and no error messages when dlltool set verbose), if seek utilize function d3d11createdevice should implemented in it, error:

undefined reference `d3d11createdevice'

if inquire nm symbol nowadays in library (and filter using grep), this:

d:\tools\lib2a>bin\nm libd3d11.a | grep d3d11createdevice file stdin: 00000000 __imp__d3d11createdeviceandswapchain 00000000 t _d3d11createdeviceandswapchain 00000000 __imp__d3d11createdevice 00000000 t _d3d11createdevice

the imp function function calls actual implementation of d3d11createdevice within dll. however, actual implementation prefixed underscore.

why "_d3d11createdevice" defined while "d3d11createdevice" not though mentioned in definitions file?

just do:

copy d3d11.lib libd3d11.a

alternatively utilize x:\path\to\d3d11.lib on gcc command line instead of -ld3d11. gnu utilities on windows utilize same pecoff archive format microsoft's tools use.

c++ gcc directx-11