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Applied the following to dxe3.gen.c so that it compiles with gcc2:

* dxe3gen.c: change the variable length array from [] to [0] so that
it compiles using gcc2

Index: src/dxe/dxe3gen.c
===================================================================
RCS file: /cvs/djgpp/djgpp/src/dxe/dxe3gen.c,v
retrieving revision 1.19
diff -u -r1.19 dxe3gen.c
--- src/dxe/dxe3gen.c	17 May 2015 12:55:18 -0000	1.19
+++ src/dxe/dxe3gen.c	22 May 2015 22:08:42 -0000
@@ -168,8 +168,9 @@
 #ifndef DXE_LD
 /* Cross compile ld name/location */
 #define DXE_LD  "ld"
-#else
-/* Linux violates POSIX.1 and defines this, but it shouldn't.  We fix it. */
+#endif
+#ifdef _POSIX_SOURCE
+/* Linux violates POSIX.1 and defines this, but it shouldn't.. */
 #undef _POSIX_SOURCE
 #endif

@@ -684,7 +685,7 @@
                 uword length;
                 sword CIE_id;
                 ubyte version;
-                unsigned char augmentation[];
+                unsigned char augmentation[0];
               } __attribute__ ((packed, aligned (__alignof__ (void *))));