ARM: Workarounds for running mescc.

* module/mescc.scm (mescc:main): Oops, handle -std=STANDARD.
* build-aux/build.sh.in (CFLAGS): Add -std=gnu99.  Fixes compilation
with gcc-4.9.
* src/reader.c (reader_read_identifier_or_number): Ugly hack: exit at
EOF.  Fixes running mescc.

build-aux/build.sh.in

@@ -49,10 +49,11 @@ if test -n "$GUILE" -a "$GUILE" != true; then
 fi
 
 debug=
-#debug=-g
+debug=-g
 
 CFLAGS="
 -static
+-std=gnu99
 $debug
 "
 

module/mescc.scm

@@ -143,10 +143,10 @@ General help using GNU software: <http://gnu.org/gethelp/>
                                 "-nostartfiles"
                                 "-nostdinc"
                                 "-nostdlib"
-                                "-static"
-                                "-std"))
+                                "-static"))
          (args (map (lambda (o)
-                      (if (member o single-dash-options) (string-append "-" o)
+                      (if (or (member o single-dash-options)
+                              (string-prefix? "-std=" o)) (string-append "-" o)
                           o))
                     args))
          (args (append-map unclump-single args))

src/reader.c

@@ -106,6 +106,10 @@ reader_read_identifier_or_number (int c)
     }
   unreadchar (c);
   g_buf[i] = 0;
+#if __arm__ // FIXME: workaround for mescc end of file bug
+  if (c == -1 && i == 1)
+    exit (0);
+#endif
   return cstring_to_symbol (g_buf);
 }