mirror of https://git.tukaani.org/xz.git
CMake: Use configure_file() to copy a file
I had missed this simpler method before. It does create a dependency so that if .in.h changes the copying is done again.
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@ -1685,17 +1685,14 @@ if(NOT HAVE_GETOPT_LONG)
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# the Autotools build (m4/getopt.m4).
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target_compile_definitions(libgnu PUBLIC "__GETOPT_PREFIX=rpl_")
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# Create a custom copy command to copy the getopt header to the build
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# directory and re-copy it if it is updated. (Gnulib does it this way
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# because it allows choosing which .in.h files to actually use in the
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# build. We need just getopt.h so this is a bit overcomplicated for
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# Copy the getopt header to the build directory and re-copy it
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# if it is updated. (Gnulib does it this way because it allows
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# choosing which .in.h files to actually use in the build. We
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# need just getopt.h so this is a bit overcomplicated for
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# a single header file only.)
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add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/lib/getopt.h"
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COMMAND "${CMAKE_COMMAND}" -E copy
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"${CMAKE_CURRENT_SOURCE_DIR}/lib/getopt.in.h"
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"${CMAKE_CURRENT_BINARY_DIR}/lib/getopt.h"
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MAIN_DEPENDENCY "${CMAKE_CURRENT_SOURCE_DIR}/lib/getopt.in.h"
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VERBATIM)
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configure_file("${CMAKE_CURRENT_SOURCE_DIR}/lib/getopt.in.h"
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"${CMAKE_CURRENT_BINARY_DIR}/lib/getopt.h"
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COPYONLY)
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target_sources(libgnu PRIVATE
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lib/getopt1.c
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