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# various checks add additional of extra libs, most likely for SunOS
# using own checks and not CHECK_SYMBOLE because of spurios problems seen with
# it
INCLUDE(CheckCSourceCompiles)
SET(TESTSRC "
#include <sys/types.h>
#include <sys/socket.h>
int main(int argc, char **argv) {
return socket(AF_INET, SOCK_STREAM, 0);
}
")
SET(CMAKE_REQUIRED_LIBRARIES )
CHECK_C_SOURCE_COMPILES("${TESTSRC}" USE_LIBC_SOCKET)
IF(NOT USE_LIBC_SOCKET)
LIST(APPEND EXTRA_LIBS socket)
SET(CMAKE_REQUIRED_LIBRARIES socket)
CHECK_C_SOURCE_COMPILES("${TESTSRC}" USE_LIBSOCKET)
IF(NOT USE_LIBSOCKET)
MESSAGE(FATAL_ERROR "No working socket(...) found in libc or libsocket")
ENDIF(NOT USE_LIBSOCKET)
ENDIF(NOT USE_LIBC_SOCKET)
SET(TESTSRC "
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
int main(int argc, char **argv) {
struct hostent *h = gethostbyname(argv[0]);
return sizeof(h);
}
")
CHECK_C_SOURCE_COMPILES("${TESTSRC}" USE_LIBC_NLS)
IF(NOT USE_LIBC_NLS)
SET(CMAKE_REQUIRED_LIBRARIES nls)
CHECK_C_SOURCE_COMPILES("${TESTSRC}" USE_LIBNLS)
IF(USE_LIBNLS)
LIST(APPEND EXTRA_LIBS nls)
ELSE(USE_LIBNLS)
SET(CMAKE_REQUIRED_LIBRARIES xnet)
CHECK_C_SOURCE_COMPILES("${TESTSRC}" USE_LIBXNET)
IF(NOT USE_LIBXNET)
MESSAGE(FATAL_ERROR "Error: Could not find a system library providing gethostbyname.")
ELSE(NOT USE_LIBXNET)
LIST(APPEND EXTRA_LIBS xnet)
ENDIF(NOT USE_LIBXNET)
ENDIF(USE_LIBNLS)
ENDIF(NOT USE_LIBC_NLS)
SET(CMAKE_REQUIRED_LIBRARIES )
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