Defined in 3 files as a macro:

• contrib/binutils/include/xregex2.h, line 197 (as a macro)
• contrib/gdb/include/xregex2.h, line 194 (as a macro)
• contrib/libgnuregex/regex.h, line 210 (as a macro)

Referenced in 3 files:

• contrib/diff/src/diff.c, line 272
• contrib/gdb/gdb/source.c, line 1528
• gnu/usr.bin/grep/search.c
  • line 172
  • line 173