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