diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 10185c8e..2b78d4e0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -155,13 +155,6 @@ if (NOT NNG_SANITIZER STREQUAL "none") set(NNG_SANITIZER_FLAGS "-fsanitize=${NNG_SANITIZER}") endif () -include(CheckAtomicLib) -CheckAtomicLib() -if (NOT HAVE_C_ATOMICS_WITHOUT_LIB AND HAVE_C_ATOMICS_WITH_LIB) - list(APPEND NNG_LIBS "atomic") -endif () - - if (NNG_ENABLE_COVERAGE) # NB: This only works for GCC and Clang 3.0 and newer. If your stuff # is older than that, you will need to find something newer. For @@ -327,6 +320,15 @@ else () nng_check_lib(nsl gethostbyname NNG_HAVE_LIBNSL) nng_check_lib(socket socket NNG_HAVE_LIBSOCKET) + # GCC needs libatomic on some architectures (e.g. ARM) because the + # underlying architecture may lack the necessary atomic primitives. + # One hopes that the libatomic implementation is superior to just using + # a pthread mutex. The symbol chosen here was identified from GCC's + # libatomic map file. + # + # Arguably when using clang, compiler-rt might be better. + nng_check_lib(__atomic_load_1 atomic NNG_HAVE_LIBATOMIC) + nng_check_sym(AF_UNIX sys/socket.h NNG_HAVE_UNIX_SOCKETS) nng_check_sym(backtrace_symbols_fd execinfo.h NNG_HAVE_BACKTRACE) nng_check_struct_member(msghdr msg_control sys/socket.h NNG_HAVE_MSG_CONTROL) |