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CMake: Refuses to work for out-of-source builds when tablegenned files 

are found mixed with the sources. Fixes PR 4522.

llvm-svn: 75522
This commit is contained in:
Oscar Fuentes 2009-07-13 21:58:44 +00:00
parent b63f71528e
commit 304396a8c3
1 changed files with 18 additions and 0 deletions
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18
llvm/CMakeLists.txt
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@ -28,6 +28,24 @@ set(LLVM_TOOLS_BINARY_DIR ${LLVM_BINARY_DIR}/bin)
set(LLVM_EXAMPLES_BINARY_DIR ${LLVM_BINARY_DIR}/examples)
set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )
if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
file(GLOB_RECURSE
tablegenned_files_on_include_dir
"${LLVM_MAIN_SRC_DIR}/include/llvm/*.gen")
file(GLOB_RECURSE
tablegenned_files_on_lib_dir
"${LLVM_MAIN_SRC_DIR}/lib/Target/*.inc")
if( tablegenned_files_on_include_dir OR tablegenned_files_on_lib_dir)
message(FATAL_ERROR "Apparently there is a previous in-source build,
probably as the result of running `configure' and `make' on
${LLVM_MAIN_SRC_DIR}.
This may cause problems. The suspicious files are:
${tablegenned_files_on_lib_dir}
${tablegenned_files_on_include_dir}
Please clean the source directory.")
endif()
endif()
set(LLVM_ALL_TARGETS
Alpha
ARM