Wrap externs with parens to protect against inproper macro expansion.

include/ac/alloca.h

@@ -23,7 +23,7 @@
 #pragma alloca
 #  else
 #   ifndef alloca /* predefined by HP cc +Olibcalls */
-extern char *alloca ();
+extern char *(alloca)();
 #   endif
 #  endif
 # endif

include/ac/errno.h

@@ -28,10 +28,6 @@ extern char     *sys_errlist[];
 #endif
 #endif
     
-#if !defined( EWOULDBLOCK ) && defined( WSAEWOULDBLOCK )
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#endif
-
 /* use _POSIX_VERSION for POSIX.1 code */
 
 #endif /* _AC_ERRNO_H */

include/ac/setproctitle.h

@@ -18,7 +18,7 @@
 #	include <libutil.h>
 #else
 	/* use lutil version */
-	extern void setproctitle LDAP_P((const char *fmt, ...));
+	extern void (setproctitle) LDAP_P((const char *fmt, ...));
 	extern int Argc;
 	extern char **Argv;
 #endif

include/ac/socket.h

@@ -67,6 +67,9 @@
 #	define tcp_close( s )		closesocket( s );
 #	define ioctl( s, c, a )		ioctlsocket( (s), (c), (a) )
 #	define ioctl_t				u_long
+
+#define EWOULDBLOCK WSAEWOULDBLOCK
+
 #elif MACOS
 #	define tcp_close( s )		tcpclose( s )
 #elif DOS

include/ac/string.h

@@ -57,7 +57,7 @@ extern char *ldap_pvt_strdup( const char * s );
 #else
 #	ifdef DECL_STRDUP
 		/* some systems fail to declare strdup */
-		extern char *strdup();
+		extern char *(strdup)();
 #	endif
 #endif
 

include/ac/unistd.h

@@ -24,11 +24,11 @@
 #if HAVE_CRYPT_H
 #	include <crypt.h>
 #else
-	extern char *crypt();
+	extern char *(crypt)();
 #endif
 
 #ifndef HAVE_GETPASS
-extern char* getpass LDAP_P((const char *getpass));
+extern char* (getpass) LDAP_P((const char *getpass));
 #endif
 
 /* getopt() defines may be in separate include file */
@@ -46,10 +46,10 @@ extern char* getpass LDAP_P((const char *getpass));
 #endif
 
 #ifndef HAVE_TEMPNAM
-	extern char *tempnam(const char *tmpdir, const char *prefix);
+	extern char *(tempnam)(const char *tmpdir, const char *prefix);
 #endif
 #ifndef HAVE_MKTEMP
-	extern char *mktemp(char *);
+	extern char *(mktemp)(char *);
 #endif
 
 /* use lutil file locking */