lib/Makefile: use CC, add bcheck to libtcc1.a

Also:
- fix "make tcc_p" (profiling version)
- remove old gcc flags:
  -mpreferred-stack-boundary=2 -march=i386 -falign-functions=0
- remove test "hello" for Darwin (cannot compile to file)

tccelf.c

@@ -1338,10 +1338,6 @@ ST_FUNC void tcc_add_bcheck(TCCState *s1)
     add_elf_sym(symtab_section, 0, 0,
                 ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0,
                 bounds_section->sh_num, "__bounds_start");
-    /* add bound check code */
-#ifndef TCC_TARGET_PE
-    tcc_add_support(s1, "bcheck.o");
-#endif
 #ifdef TCC_TARGET_I386
     if (s1->output_type != TCC_OUTPUT_MEMORY) {
         /* add 'call __bound_init()' in .init section */