dlfcn-win32

dlfcn-win32 is an implementation of dlfcn for Windows.

dlfcn is a set of functions that allows runtime dynamic library loading. It is standardized in the POSIX. Windows also provide similar routines, but not in a POSIX-compatible way. This library attempts to implement a wrapper around the Windows functions to make programs written for POSIX that use dlfcn work in Windows without any modifications.

It follows the standard as described here:

http://www.opengroup.org/onlinepubs/009695399/basedefs/dlfcn.h.html http://www.opengroup.org/onlinepubs/009695399/functions/dlerror.html http://www.opengroup.org/onlinepubs/009695399/functions/dlsym.html http://www.opengroup.org/onlinepubs/009695399/functions/dlclose.html http://www.opengroup.org/onlinepubs/009695399/functions/dlopen.html

Using This Library

Using CMake

Once the library has been installed, add to your project CMakeLists.txt :

...
find_package(dlfcn-win32 REQUIRED)
...
target_link_libraries(<target> dlfcn-win32::dl)
...

If you want to use this library in a cross-platform project, a convenient way to proceed is to define the CMake variable CMAKE_DL_LIBS (that is normally empty on Windows) and then use it for linking:

...
if (WIN32)
  find_package(dlfcn-win32 REQUIRED)
  set(CMAKE_DL_LIBS dlfcn-win32::dl)
endif ()  
...
target_link_libraries(<target> ${CMAKE_DL_LIBS})
...

When cross-compiling you might want to set CMAKE_CROSSCOMPILING_EMULATOR to the path of wine to run tests.

Author

Written by Ramiro Polla in 2007. Maintained by Tiancheng “Timothy” Gu from 2013.

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.