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Link against atomic if __atomic_add_fetch_8 is missing

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src/fastnetmon.cpp uses __atomic_add_fetch(). Some architectures (like
mips, mipsel, m68k, powerpc, sh4) do not provide these built-in
functions and need to link against atomic to provide this function.

closes #703
Bug-Debian: https://bugs.debian.org/869805
This commit is contained in:
Benjamin Drung 2018-02-05 23:21:12 +01:00
parent b6e6843d2e
commit 1fdf32aec6
1 changed files with 19 additions and 0 deletions
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19
src/CMakeLists.txt
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@ -21,6 +21,9 @@ project(FastNetMon)
# Get convinient paths for all system folders: http://www.cmake.org/gitweb?p=cmake.git;a=commitdiff;h=a262fe09
# include(GNUInstallDirs)
include(CheckCXXCompilerFlag)
include(CheckLibraryExists)
# Enable it and fix all warnigns!
# add_definitions ("-Wall")
@ -104,6 +107,22 @@ if (USE_NEW_ATOMIC_BUILTINS)
add_definitions(-DUSE_NEW_ATOMIC_BUILTINS)
endif()
CHECK_CXX_SOURCE_COMPILES("
#include <cstdint>
int main() {
uint64_t x = 1;
__atomic_add_fetch(&x, 0, __ATOMIC_RELAXED);
return x;
}
" HAVE__ATOMIC_ADD_FETCH)
if (NOT HAVE__ATOMIC_ADD_FETCH)
check_library_exists(atomic __atomic_add_fetch_8 "" HAVE_LIBATOMIC)
if (HAVE_LIBATOMIC)
target_link_libraries(fastnetmon atomic)
endif()
endif()
# With this flag we can disable PF_RING build via console: cmake .. -DDISABLE_PF_RING_SUPPORT=ON
if (NOT DISABLE_PF_RING_SUPPORT)
if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")