Defined in 4 files as a macro:
- contrib/binutils/libiberty/regex.c, line 109 (as a macro)
- contrib/diff/lib/gettext.h, line 66 (as a macro)
- contrib/libgnuregex/regex_internal.h, line 85 (as a macro)
- contrib/ntp/sntp/libopts/gettext.h, line 108 (as a macro)