From 506d03127a8565442b028ec991e1578124fd3025 Mon Sep 17 00:00:00 2001 From: Jia Tan Date: Fri, 29 Sep 2023 19:58:44 +0800 Subject: [PATCH] CMake: Specify LINKER_LANGUAGE for libgnu target to fix Ninja Generator. CMake is unable to guess the linker language for just a header file so it must be explicitly set. --- CMakeLists.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index ffb381b4..3e536a87 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1008,6 +1008,12 @@ add_library(libgnu OBJECT) # file. So we give it a header file that results in no output files. 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. file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib") target_include_directories(libgnu PUBLIC "${CMAKE_CURRENT_BINARY_DIR}/lib") -- 2.11.4.GIT