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authorBrad King <brad.king@kitware.com>2010-12-21 19:06:32 (GMT)
committerCMake Topic Stage <kwrobot@kitware.com>2010-12-21 19:06:32 (GMT)
commit9f4605149072346aa59c1188d0582bc1c971fe7a (patch)
tree93d8462ce6637e1ed9bdeed4557ebfaa4487f7d8 /Modules
parentbc92c842317ea89e0785ed221adf28aa54319232 (diff)
parent85c0a69a92e78275ea0b180482bafcdb877b0dc3 (diff)
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Merge topic 'cygwin'
85c0a69 Cygwin: Do not define 'WIN32' (#10122) 62c6d2d Merge branch 'cmake_--system-information_min-version' into cygwin 72db20f Merge branch 'tests-if-CYGWIN' into cygwin 5adef16 Merge branch 'cygwin-module-prefix' into cygwin cbc3258 Merge branch 'try-compile-min-version' into cygwin
Diffstat (limited to 'Modules')
-rw-r--r--Modules/Platform/CYGWIN.cmake46
1 files changed, 45 insertions, 1 deletions
diff --git a/Modules/Platform/CYGWIN.cmake b/Modules/Platform/CYGWIN.cmake
index 1576982..b7ad2ce 100644
--- a/Modules/Platform/CYGWIN.cmake
+++ b/Modules/Platform/CYGWIN.cmake
@@ -1,4 +1,48 @@
-SET(WIN32 1)
+if("${CMAKE_MINIMUM_REQUIRED_VERSION}" VERSION_LESS "2.8.3.20101214")
+ set(__USE_CMAKE_LEGACY_CYGWIN_WIN32 1)
+endif()
+if(NOT DEFINED WIN32)
+ set(WIN32 0)
+ if(DEFINED __USE_CMAKE_LEGACY_CYGWIN_WIN32)
+ if(NOT DEFINED CMAKE_LEGACY_CYGWIN_WIN32
+ AND DEFINED ENV{CMAKE_LEGACY_CYGWIN_WIN32})
+ set(CMAKE_LEGACY_CYGWIN_WIN32 $ENV{CMAKE_LEGACY_CYGWIN_WIN32})
+ endif()
+ if(CMAKE_LEGACY_CYGWIN_WIN32)
+ message(STATUS "Defining WIN32 under Cygwin due to CMAKE_LEGACY_CYGWIN_WIN32")
+ set(WIN32 1)
+ elseif("x${CMAKE_LEGACY_CYGWIN_WIN32}" STREQUAL "x")
+ message(WARNING "CMake no longer defines WIN32 on Cygwin!"
+ "\n"
+ "(1) If you are just trying to build this project, ignore this warning "
+ "or quiet it by setting CMAKE_LEGACY_CYGWIN_WIN32=0 in your environment or "
+ "in the CMake cache. "
+ "If later configuration or build errors occur then this project may "
+ "have been written under the assumption that Cygwin is WIN32. "
+ "In that case, set CMAKE_LEGACY_CYGWIN_WIN32=1 instead."
+ "\n"
+ "(2) If you are developing this project, add the line\n"
+ " set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required\n"
+ "at the top of your top-level CMakeLists.txt file or set the minimum "
+ "required version of CMake to 2.8.4 or higher. "
+ "Then teach your project to build on Cygwin without WIN32.")
+ endif()
+ elseif(DEFINED CMAKE_LEGACY_CYGWIN_WIN32)
+ message(AUTHOR_WARNING "CMAKE_LEGACY_CYGWIN_WIN32 ignored because\n"
+ " cmake_minimum_required(VERSION ${CMAKE_MINIMUM_REQUIRED_VERSION})\n"
+ "is at least 2.8.4.")
+ endif()
+endif()
+if(DEFINED __USE_CMAKE_LEGACY_CYGWIN_WIN32)
+ # Pass WIN32 legacy setting to scripts.
+ if(WIN32)
+ set(ENV{CMAKE_LEGACY_CYGWIN_WIN32} 1)
+ else()
+ set(ENV{CMAKE_LEGACY_CYGWIN_WIN32} 0)
+ endif()
+ unset(__USE_CMAKE_LEGACY_CYGWIN_WIN32)
+endif()
+
SET(CYGWIN 1)
SET(CMAKE_SHARED_LIBRARY_PREFIX "cyg")