osx - Building a cross compile of binutils on OS X Yosemite -


i'm trying build binutils generating mips code on mac os x.

i found site (http://www.theairportwiki.com/index.php/building_a_cross_compile_of_gcc_for_mips_on_os_x) how build gcc 4.8.x on mac os x host mips target, , followed instructions.

i install gcc-4.8 brew, , installed source code of binutils , gcc. compilation option setup. 

$ export cc=/usr/local/bin/gcc-4.8 $ export cxx=/usr/local/bin/g++-4.8 $ export cpp=/usr/local/bin/cpp-4.8 $ export ld=/usr/local/bin/gcc-4.8 $ export prefix=/opt/cross/gcc-mips $ export cflags=-wno-error=deprecated-declarations

then configure, , make bintuils.

the issue after building static libraries have error message archive not built x86_64, , have bunch of undefined symbol error. 

ignoring file ./../intl/libintl.a, file built archive not architecture being linked (x86_64): ./../intl/libintl.a  undefined symbols architecture x86_64:   "__bfd_abort", referenced from:       _fix_new_internal in write.o       _size_seg in write.o

googling find need setup ar (archive) variable https://github.com/tpoechtrager/osxcross/issues/11. added export ar=/usr/local/bin/gcc-ar-4.8, have error message because gcc-ar-4.8 doesn't work. 

/usr/local/bin/gcc-ar-4.8  /usr/local/bin/gcc-ar-4.8: cannot find plugin 'liblto_plugin.so'

googling again find gcc-ar doesn't work mac os x (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56893). 

gcc-ar use newer gnu binutils only ar supports plugins.   apple's ar not support plugins (though made to; different plugin interface gnu bfd  plugin interface gcc supports right now).

i created dumb 'liblto_plugin.so' file in /usr/local/cellar/gcc48/4.8.4/libexec/gcc/x86_64-apple-darwin14.3.0/4.8.4 directory suppress error message, in case looks /usr/ar invoked when use /usr/bin/gcc-ar-4.8 same architecture , undefined symbols error.

how solve these issues? how build cross compiler tools (gcc , binutils) on mac os x?

the static library generator mac os x not ar, libtool -static. there post - static library link issue mac os x: symbol(s) not found architecture x86_64.

the binutils has multiple libraries linked statically. replaced ar rc command libtool -static -o static libraries not cause errors.

in doing so, had make 2 modifications also.

  1. some library generate libtool script conflict mac os x's libtool, had rename script.
  2. some object files not contain symbols, had remove objects.

then binaries without issue.


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