CMake: Cygwin pretends to be Unix.

Patch by Jay Foad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58434 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a79044f63cab002479b732a8558061f1b0607e09..724cd8b92c68b5352ffc414e637efd495952c4ff 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,8 +31,13 @@ set(CMAKE_MODULE_PATH
   )
 
 if(WIN32)
-  set(LLVM_ON_WIN32 1)
-  set(LLVM_ON_UNIX 0)
+  if(CYGWIN)
+    set(LLVM_ON_WIN32 0)
+    set(LLVM_ON_UNIX 1)
+  else(CYGWIN)
+    set(LLVM_ON_WIN32 1)
+    set(LLVM_ON_UNIX 0)
+  endif(CYGWIN)
   set(LTDL_SHLIB_EXT ".dll")
   set(EXEEXT ".exe")
   # Maximum path length is 160 for non-unicode paths
@@ -65,7 +70,10 @@ set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
 # set(CMAKE_VERBOSE_MAKEFILE true)
 
 add_definitions( -D__STDC_LIMIT_MACROS )
-add_definitions( -D__STDC_CONSTANT_MACROS )
+add_definitions( -D__STDC_CONSTANT_MACROS -m32 )
+
+set( CMAKE_EXE_LINKER_FLAGS "-m32 ${CMAKE_EXE_LINKER_FLAGS}" )
+set( CMAKE_LINK_LIBRARY_FLAG "-m32 ${CMAKE_LINK_LIBRARY_FLAG}" )
 
 if( MSVC )
   add_definitions( -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS )