http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51067
--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-11-09 19:45:32 UTC --- On Wed, 9 Nov 2011, karl at freefriends dot org wrote: > Also, I do not see any description of the trailing integers now sometimes > present in the CPP output, as in: > # 1 "/usr/include/bits/sys_errlist.h" 1 3 4 See "Preprocessor Output" in cpp.texi. @cindex linemarkers Source file name and line number information is conveyed by lines of the form @smallexample # @var{linenum} @var{filename} @var{flags} @end smallexample [...]