[Java PATCH] Generate declarations in jvgenmain.c

[Marek Polacek]

[CCing java-patches now]

Java testsuite breaks with -std=gnu11 as a default and/or with 
-Wimplicit-function-declaration on, since the jvgenmain.c program
that generates a C file containing 'main' function which calls either
'JvRunMainName' or 'JvRunMain' does not generate forward declarations
for these functions.  The following patch generates such a declaration
depending on whether -findirect-dispatch is given.

Bootstrapped/regtested on x86_64-linux, ok for trunk?

2014-10-07  Marek Polacek  <polacek@redhat.com>

	* jvgenmain.c (main): Provide declaration for JvRunMain{,Name}.

diff --git gcc/java/jvgenmain.c gcc/java/jvgenmain.c
index 5b14258..82e468d 100644
--- gcc/java/jvgenmain.c
+++ gcc/java/jvgenmain.c
@@ -127,6 +127,10 @@ main (int argc, char **argv)
   /* At this point every element of ARGV from 1 to LAST_ARG is a `-D'
      option.  Process them appropriately.  */
   fprintf (stream, "extern const char **_Jv_Compiler_Properties;\n");
+  if (indirect)
+    fprintf (stream, "extern void JvRunMainName ();\n");
+  else
+    fprintf (stream, "extern void JvRunMain ();\n");
   fprintf (stream, "static const char *props[] =\n{\n");
   for (i = 1; i < last_arg; ++i)
     {

	Marek