1 files changed, 60 insertions, 0 deletions
diff --git a/include/AddNetworkBits.cmake b/include/AddNetworkBits.cmake
new file mode 100644
index 0000000..56643b3
--- /dev/null
+++ b/include/AddNetworkBits.cmake
@@ -0,0 +1,60 @@
+
+# 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 )
+