Win32 build fixes

configure.in

@@ -198,10 +198,10 @@ case "${host_os}" in
         AC_CHECK_HEADERS(windows.h)
         AC_CHECK_LIB(ws2_32, main, ,
             [AC_MSG_ERROR([cannot link with ws2_32.dll.])])
-        AC_CHECK_LIB(Rpcrt4, main, ,
-            [AC_MSG_ERROR([cannot link with Rpcrt4.dll.])])
-        AC_CHECK_LIB(Iphlpapi, main, ,
-            [AC_MSG_ERROR([cannot link with Iphlpapi.dll.])])
+        AC_CHECK_LIB(rpcrt4, main, ,
+            [AC_MSG_ERROR([cannot link with rpcrt4.dll.])])
+        AC_CHECK_LIB(iphlpapi, main, ,
+            [AC_MSG_ERROR([cannot link with iphlpapi.dll.])])
         CFLAGS="${CFLAGS} -std=c99"
         on_mingw32="yes"
         install_man="no"

src/Makefile.am

@@ -179,7 +179,11 @@ libzmq_la_SOURCES = app_thread.hpp \
     zmq_init.cpp \
     zmq_listener.cpp
 
+if ON_MINGW
+libzmq_la_LDFLAGS = -no-undefined -version-info @LTVER@ @LIBZMQ_EXTRA_LDFLAGS@
+else
 libzmq_la_LDFLAGS = -version-info @LTVER@ @LIBZMQ_EXTRA_LDFLAGS@
+endif
 
 if BUILD_PGM
 

src/ip.hpp

@@ -30,6 +30,11 @@
 #include <arpa/inet.h>
 #include <netinet/in.h>
 #include <netdb.h>
+#endif
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#include <sys/un.h>
+#endif
 
 //  Some platforms (notably Darwin/OSX and NetBSD) do not define all AI_
 //  flags for getaddrinfo(). This can be worked around safely by defining
@@ -40,11 +45,6 @@
 #ifndef AI_NUMERICSERV
 #define AI_NUMERICSERV 0
 #endif
-#endif
-
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
-#include <sys/un.h>
-#endif
 
 namespace zmq
 {

src/uuid.hpp

@@ -29,7 +29,7 @@
       defined ZMQ_HAVE_OSX || defined ZMQ_HAVE_CYGWIN
 #include <uuid/uuid.h>
 #elif defined ZMQ_HAVE_WINDOWS
-#include <Rpc.h>
+#include <rpc.h>
 #endif
 
 namespace zmq