fix: try to add a bounds.o only if __bounds_init not found

    /usr/local/lib/tcc/i386/bcheck.o: error: '__bound_error_msg' defined twice
    #include <stdio.h>
    int main ()
    {
        #if 1
    	    int v[10];
            v[10] = 0;
            fprintf(stderr, "is bounds error catched?\n");
        #endif
        return 0;
    }
    // tcc -b test.c

1 files changed, 6 insertions, 3 deletions

diff --git a/tccelf.c b/tccelf.c
index bd2c147..0ac151a 100644
--- a/tccelf.c
+++ b/tccelf.c
@@ -1589,10 +1589,13 @@ ST_FUNC void tcc_add_bcheck(TCCState *s1)
         pinit = section_ptr_add(init_section, 5);
         pinit[0] = 0xe8;
         put32(pinit + 1, -4);
-	tcc_add_support(s1, "bcheck.o");
 	sym_index = find_elf_sym(symtab_section, "__bound_init");
-	if (!sym_index)
-	    tcc_error("__bound_init not defined");
+	if (!sym_index) {
+	    tcc_add_support(s1, "bcheck.o");
+	    sym_index = find_elf_sym(symtab_section, "__bound_init");
+	    if (!sym_index) 
+		tcc_error("__bound_init not defined");
+	}
         put_elf_reloc(symtab_section, init_section,
                       init_section->data_offset - 4, R_386_PC32, sym_index);
     }