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authorEd Schouten <ed@FreeBSD.org>2010-10-21 19:02:02 +0000
committerEd Schouten <ed@FreeBSD.org>2010-10-21 19:02:02 +0000
commit217b614317dad692116a3a06fe94ea8f61a59edb (patch)
tree4cfe2eee875a959effca0881df14c079103447fa /cmake/Modules/MacroEnsureOutOfSourceBuild.cmake
downloadsrc-217b614317dad692116a3a06fe94ea8f61a59edb.tar.gz
src-217b614317dad692116a3a06fe94ea8f61a59edb.zip
Import compiler-rt r117047.vendor/compiler-rt/compiler-rt-r117047
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=214152 svn path=/vendor/compiler-rt/compiler-rt-r117047/; revision=214153; tag=vendor/compiler-rt/compiler-rt-r117047
Diffstat (limited to 'cmake/Modules/MacroEnsureOutOfSourceBuild.cmake')
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1 files changed, 18 insertions, 0 deletions
diff --git a/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake b/cmake/Modules/MacroEnsureOutOfSourceBuild.cmake
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+# MACRO_ENSURE_OUT_OF_SOURCE_BUILD(<errorMessage>)
+
+macro( MACRO_ENSURE_OUT_OF_SOURCE_BUILD _errorMessage )
+
+string( COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" _insource )
+if( _insource )
+ message( SEND_ERROR "${_errorMessage}" )
+ message( FATAL_ERROR
+ "In-source builds are not allowed.
+ CMake would overwrite the makefiles distributed with Compiler-RT.
+ Please create a directory and run cmake from there, passing the path
+ to this source directory as the last argument.
+ This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
+ Please delete them."
+ )
+endif( _insource )
+
+endmacro( MACRO_ENSURE_OUT_OF_SOURCE_BUILD )