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Find and link against pthread

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Building on SUSE fails, as std::thread usage requires linking
against pthread:

/usr/bin/c++ -fPIC -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -DNDEBUG -O3 -DNDEBUG -flto=auto -Wl,--as-needed -Wl,--no-undefined -Wl,-z,now -shared -Wl,-soname,libsdbus-c++.so.0 -o libsdbus-c++.so.0.8.3 CMakeFiles/sdbus-c++-objlib.dir/src/Connection.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Error.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Message.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Object.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Proxy.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Types.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/Flags.cpp.o CMakeFiles/sdbus-c++-objlib.dir/src/VTableUtils.c.o CMakeFiles/sdbus-c++-objlib.dir/src/SdBus.cpp.o  /usr/lib64/libsystemd.so
/usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /tmp/libsdbus-c++.so.0.8.3.uWoUml.ltrans0.ltrans.o: in function `sdbus::internal::Connection::enterEventLoopAsync()':
<artificial>:(.text+0x2bb): undefined reference to `pthread_create'
/usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /tmp/libsdbus-c++.so.0.8.3.uWoUml.ltrans0.ltrans.o: in function `non-virtual thunk to sdbus::internal::Connection::enterEventLoopAsync()':
<artificial>:(.text+0x37a): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
This commit is contained in:
Luca Boccassi
2021-04-01 11:57:58 +01:00
committed by Urs Ritzmann
parent 5e03e78451
commit fc9f770512
1 changed files with 4 additions and 0 deletions
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4
CMakeLists.txt
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@ -31,6 +31,9 @@ else()
include(cmake/LibsystemdExternalProject.cmake)
endif()
# Required for std::thread
find_package(Threads REQUIRED)
#-------------------------------
# SOURCE FILES CONFIGURATION
#-------------------------------
@ -110,6 +113,7 @@ if(BUILD_LIBSYSTEMD)
add_dependencies(sdbus-c++-objlib LibsystemdBuildProject)
endif()
target_link_libraries(sdbus-c++-objlib PUBLIC Systemd::Libsystemd)
target_link_libraries(sdbus-c++-objlib PUBLIC Threads::Threads)
add_library(sdbus-c++)
target_include_directories(sdbus-c++ PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>