make pedantic compiler options generate less warnings

src/getpass.c

@@ -36,6 +36,8 @@
 
 #ifndef HAVE_GETPASS_R
 
+#include "getpass.h"
+
 #ifndef WIN32
 #ifdef	VMS
 #include <stdio.h>
@@ -101,9 +103,9 @@ char *getpass_r(const char *prompt, char *buffer, size_t buflen)
   FILE *infp;
   char infp_fclose = 0;
   FILE *outfp;
-  RETSIGTYPE (*sigint)();
+  RETSIGTYPE (*sigint)(int);
 #ifdef SIGTSTP
-  RETSIGTYPE (*sigtstp)();
+  RETSIGTYPE (*sigtstp)(int);
 #endif
   size_t bytes_read;
   int infd;

src/homedir.c

@@ -40,6 +40,8 @@
 #include <unixlib.h>
 #endif
 
+#include "homedir.h"
+
 #ifdef CURLDEBUG
 #include "../lib/memdebug.h"
 #endif

src/urlglob.c

@@ -136,8 +136,11 @@ static GlobCode glob_set(URLGlob *glob, char *pattern, int pos, int *amount)
       ++pos;
     }
   }
+  /* we never reach this point */
+#if 0
   snprintf(globerrormsg, sizeof(globerrormsg), "malformatted pattern");
   return GLOB_ERROR;
+#endif
 }
 
 static GlobCode glob_range(URLGlob *glob, char *pattern, int pos, int *amount)

src/writeout.c

@@ -184,6 +184,7 @@ void ourWriteOut(CURL *curl, char *writeinfo)
                   fputs(stringp, stream);
                 break;
               default:
+                /* -Wunreachable-code wrongly complains on this */
                 break;
               }
               break;