new attempt at working around the gcc 3 visibility bug

since gcc is failing to generate the necessary ".hidden" directive in
the output asm, generate it explicitly with an __asm__ statement...

src/internal/libc.c

@@ -9,3 +9,7 @@ struct __libc *__libc_loc()
 #else
 struct __libc __libc;
 #endif
+
+#ifdef BROKEN_VISIBILITY
+__asm__(".hidden __libc");
+#endif

src/internal/libc.h

@@ -22,6 +22,9 @@ struct __libc {
 #if !defined(__PIC__) || 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined(__PCC__) || defined(__TINYC__)
 
 #ifdef __PIC__
+#if __GNUC__ < 4
+#define BROKEN_VISIBILITY 1
+#endif
 #define ATTR_LIBC_VISIBILITY __attribute__((visibility("hidden"))) 
 #else
 #define ATTR_LIBC_VISIBILITY

src/multibyte/internal.c

@@ -32,3 +32,7 @@ const uint32_t bittab[] = {
 	E(0x8),E(0x9),E(0xa),E(0xb),E(0xc),E(0xd),E(0xe),E(0xf),
 	F(0x0),F(0x1),F(0x2),F(0x3),F(0x4)
 };
+
+#ifdef BROKEN_VISIBILITY
+__asm__(".hidden __fsmu8");
+#endif