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include(CheckTypeSize)
if(WIN32)
set(SOCKET_LIBRARIES ws2_32.lib gdi32.lib)
set(HAVE_SOCKET 1)
else()
check_library_exists(socket socket "" HAVE_LIBSOCKET)
check_library_exists(nsl gethostent "" HAVE_LIBNSL)
if(HAVE_LIBSOCKET)
set(SOCKET_LIBRARIES ${SOCKET_LIBRARIES} -lsocket)
endif()
if(HAVE_LIBNSL)
set(SOCKET_LIBRARIES ${SOCKET_LIBRARIES} -lnsl)
endif()
if(HAVE_LIBSOCKET)
set(HAVE_SOCKET 1)
else()
check_function_exists(socket HAVE_SOCKET)
endif()
endif()
if(HAVE_SOCKET)
AC_CHECK_HEADERS(sys/socket.h)
AC_CHECK_HEADERS(sys/un.h)
if(HAVE_SYS_SOCKET_H)
set(CMAKE_EXTRA_INCLUDE_FILES ${CMAKE_EXTRA_INCLUDE_FILES} sys/socket.h)
endif()
check_type_size(socklen_t SIZEOF_SOCKLEN_T)
if(NOT SIZEOF_SOCKLEN_T STREQUAL "")
set(HAVE_SOCKLEN_T 1)
endif()
check_c_source_compiles(
"#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
int main() { int x = h_errno; return 0;}"
HAVE_H_ERRNO)
check_c_source_compiles(
"#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
int main(void)
{ struct ip_mreqn mreqn;
return 0;
}"
HAVE_IP_MREQN)
endif(HAVE_SOCKET)
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