Use the HAVE_MALLOC_H and HAVE_PROCESS_H defines

(more logical).

lib/hostip6.c

@@ -26,9 +26,9 @@
 #include <string.h>
 #include <errno.h>
 
-#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
+#ifdef HAVE_MALLOC_H
 #include <malloc.h>
-#else
+#endif
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -55,13 +55,12 @@
 #include <inet.h>
 #include <stdlib.h>
 #endif
-#endif
 
 #ifdef HAVE_SETJMP_H
 #include <setjmp.h>
 #endif
 
-#ifdef WIN32
+#ifdef HAVE_PROCESS_H
 #include <process.h>
 #endif
 
@@ -143,10 +142,10 @@ int curl_dogetnameinfo(const struct sockaddr *sa, socklen_t salen,
                        char *serv, size_t servlen, int flags,
                        int line, const char *source)
 {
-  int res = (getnameinfo)(sa, salen, 
-                          host, hostlen, 
-                          serv, servlen, 
-                          flags); 
+  int res = (getnameinfo)(sa, salen,
+                          host, hostlen,
+                          serv, servlen,
+                          flags);
   if(0 == res) {
     /* success */
     if(logfile)