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Merge topic 'cygwin'

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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
This commit is contained in:
Brad King 2010-12-21 14:06:32 -05:00 committed by CMake Topic Stage
commit 9f46051490
3 changed files with 52 additions and 5 deletions
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1
CMakeLists.txt
View File

@ -10,6 +10,7 @@
# See the License for more information.
#=============================================================================
CMAKE_MINIMUM_REQUIRED(VERSION 2.4.5 FATAL_ERROR)
SET(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required
PROJECT(CMake)
IF(COMMAND CMAKE_POLICY)
CMAKE_POLICY(SET CMP0003 NEW)

46
Modules/Platform/CYGWIN.cmake
View File

@ -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")

10
Source/cmMakefile.cxx
View File

@ -2341,17 +2341,19 @@ void cmMakefile::AddDefaultDefinitions()
working, these variables are still also set here in this place, but they
will be reset in CMakeSystemSpecificInformation.cmake before the platform
files are executed. */
#if defined(_WIN32) || defined(__CYGWIN__)
#if defined(_WIN32)
this->AddDefinition("WIN32", "1");
this->AddDefinition("CMAKE_HOST_WIN32", "1");
#else
this->AddDefinition("UNIX", "1");
this->AddDefinition("CMAKE_HOST_UNIX", "1");
#endif
// Cygwin is more like unix so enable the unix commands
#if defined(__CYGWIN__)
this->AddDefinition("UNIX", "1");
this->AddDefinition("CMAKE_HOST_UNIX", "1");
if(cmSystemTools::IsOn(cmSystemTools::GetEnv("CMAKE_LEGACY_CYGWIN_WIN32")))
{
this->AddDefinition("WIN32", "1");
this->AddDefinition("CMAKE_HOST_WIN32", "1");
}
#endif
#if defined(__APPLE__)
this->AddDefinition("APPLE", "1");