Defined in 4 files as a macro:
- contrib/diff/config.h, line 121 (as a macro)
- gnu/usr.bin/binutils/libbinutils/config.h, line 41 (as a macro)
- gnu/usr.bin/cc/cc_tools/auto-host.h, line 491 (as a macro)
- gnu/usr.bin/cc/libcpp/config.h, line 100 (as a macro)