CMake/Modules/Platform/CYGWIN.cmake

SET(WIN32 1)
SET(CYGWIN 1)

SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared -Wl,--export-all-symbols -Wl,--enable-auto-import")
SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
SET(CMAKE_DL_LIBS "-lgdi32" )
SET(CMAKE_SHARED_LIBRARY_PREFIX "cyg")
SET(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
SET(CMAKE_SHARED_MODULE_PREFIX "lib")
SET(CMAKE_SHARED_MODULE_SUFFIX ".dll")
SET(CMAKE_IMPORT_LIBRARY_PREFIX "lib")
SET(CMAKE_IMPORT_LIBRARY_SUFFIX ".dll.a")
# no pic for gcc on cygwin
SET(CMAKE_SHARED_LIBRARY_C_FLAGS "")
SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")
SET(CMAKE_EXECUTABLE_SUFFIX ".exe")          # .exe
SET(CMAKE_CREATE_WIN32_EXE  "-mwindows")
# Modules have a different default prefix that shared libs.
SET(CMAKE_MODULE_EXISTS 1)

SET(CMAKE_FIND_LIBRARY_PREFIXES "cyg" "lib")
SET(CMAKE_FIND_LIBRARY_SUFFIXES ".dll" ".dll.a" ".a")

SET(CMAKE_GNULD_IMAGE_VERSION
  "-Wl,--major-image-version,<TARGET_VERSION_MAJOR>,--minor-image-version,<TARGET_VERSION_MINOR>")

SET(CMAKE_C_CREATE_SHARED_MODULE
  "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_MODULE_CREATE_C_FLAGS> -o <TARGET> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")
SET(CMAKE_CXX_CREATE_SHARED_MODULE
  "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS> -o <TARGET> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_C_CREATE_SHARED_LIBRARY
  "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")
SET(CMAKE_CXX_CREATE_SHARED_LIBRARY
  "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")

SET(CMAKE_C_LINK_EXECUTABLE
  "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS>  -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <LINK_LIBRARIES>")
SET(CMAKE_CXX_LINK_EXECUTABLE
  "<CMAKE_CXX_COMPILER>  <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS>  -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <LINK_LIBRARIES>")

# Shared libraries on cygwin can be named with their version number.
SET(CMAKE_SHARED_LIBRARY_NAME_WITH_VERSION 1)

# Initialize C link type selection flags.  These flags are used when
# building a shared library, shared module, or executable that links
# to other libraries to select whether to use the static or shared
# versions of the libraries.
FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE)
  SET(CMAKE_${type}_LINK_STATIC_C_FLAGS "-Wl,-Bstatic")
  SET(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-Bdynamic")
ENDFOREACH(type)

INCLUDE(Platform/UnixPaths)