46 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			CMake
		
	
	
	
			
		
		
	
	
			46 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			CMake
		
	
	
	
| #
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| # This function will prevent in-source builds
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| function(AssureOutOfSourceBuilds)
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|   # make sure the user doesn't play dirty with symlinks
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|   get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
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|   get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
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| 
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|   # disallow in-source builds
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|   if("${srcdir}" STREQUAL "${bindir}")
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|     message("######################################################")
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|     message("# lapack should not be configured & built in the lapack source directory")
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|     message("# You must run cmake in a build directory.")
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|     message("# For example:")
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|     message("# mkdir lapack-Sandbox ; cd lapack-sandbox")
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|     message("# git clone https://github.com/Reference-LAPACK/lapack.git # or download & unpack the source tarball")
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|     message("# mkdir lapack-build")
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|     message("# this will create the following directory structure")
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|     message("#")
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|     message("# lapack-Sandbox")
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|     message("#  +--lapack")
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|     message("#  +--lapack-build")
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|     message("#")
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|     message("# Then you can proceed to configure and build")
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|     message("# by using the following commands")
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|     message("#")
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|     message("# cd lapack-build")
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|     message("# cmake ../lapack # or ccmake, or cmake-gui ")
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|     message("# make")
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|     message("#")
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|     message("# NOTE: Given that you already tried to make an in-source build")
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|     message("#       CMake have already created several files & directories")
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|     message("#       in your source tree. run 'git status' to find them and")
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|     message("#       remove them by doing:")
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|     message("#")
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|     message("#       cd lapack-Sandbox/lapack")
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|     message("#       git clean -n -d")
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|     message("#       git clean -f -d")
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|     message("#       git checkout --")
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|     message("#")
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|     message("######################################################")
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|     message(FATAL_ERROR "Quitting configuration")
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|   endif()
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| endfunction()
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| 
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| AssureOutOfSourceBuilds()
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