darling/cmake/MacroEnsureOutOfSourceBuild.cmake
2017-04-07 18:48:16 +02:00

15 lines
539 B
CMake

macro( MACRO_ENSURE_OUT_OF_SOURCE_BUILD )
string( COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" _insource )
if( _insource )
message( FATAL_ERROR
"In-source builds are not allowed.
CMake would overwrite the Linux kernel module Makefile.
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 )