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CMake: Specify LINKER_LANGUAGE for libgnu target to fix Ninja Generator.

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CMake is unable to guess the linker language for just a header file so
it must be explicitly set.
This commit is contained in:
Jia Tan 2023-09-29 19:58:44 +08:00
parent 0570308ddd
commit 506d03127a
1 changed files with 6 additions and 0 deletions
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6
CMakeLists.txt
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@ -1008,6 +1008,12 @@ add_library(libgnu OBJECT)
# file. So we give it a header file that results in no output files. # file. So we give it a header file that results in no output files.
target_sources(libgnu PRIVATE lib/getopt.in.h) target_sources(libgnu PRIVATE lib/getopt.in.h)
# The Ninja Generator requires setting the linker language since it cannot
# guess the programming language of just a header file. Setting this
# property avoids needing an empty .c file or an non-empty unnecessary .c
# file.
set_target_properties(libgnu PROPERTIES LINKER_LANGUAGE C)
# Create /lib directory in the build directory and add it to the include path. # Create /lib directory in the build directory and add it to the include path.
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib") file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
target_include_directories(libgnu PUBLIC "${CMAKE_CURRENT_BINARY_DIR}/lib") target_include_directories(libgnu PUBLIC "${CMAKE_CURRENT_BINARY_DIR}/lib")