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...d (first use in this function) ./ppl.l:648: warning: implicit declaration of function `expand_define' ./ppl.l:650: `def_macro' undeclared (first use in this function) ./ppl.l:651: `pp_macign' undeclared (first use in this function) ./ppl.l:652: warning: implicit declaration of function `push_macro' ./ppl.l:655: warning: implicit declaration of function `pp_internal_error' ./ppl.l:645: warning: unreachable code at beginning of switch statement ./ppl.l:679: `tRCINCLUDEPATH' undeclared (first use in this function) ./ppl.l:692: warning: implicit declaration of function `isprint'...

Oh, I forgot to mention that besides setting AR, RANLIB and the stack probing fix, you also need a very up to date binutils. 2.25 was out in december. Even with that , if you linker's default is not what you are compiling for (i.e. a multiarch toolchain), you need to set GNUTARGET also, i.e. -m32/-m64 is not enough. Some fix to autodetect non-default targets went in after christmas before the