[LLVMbugs] [Bug 9861] New: clang -E produces output that clang doesn't like

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9861

           Summary: clang -E produces output that clang doesn't like
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu


$ cat foobar.c
#include "foobar.h"
$ cat foobar.h
#pragma GCC system_header
$ clang -c foobar.c
$ gcc -c foobar.c
$ gcc -c foobar.c -save-temps
$ cat foobar.i
# 1 "foobar.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "foobar.c"
# 1 "foobar.h" 1

# 1 "foobar.h" 3
# 1 "foobar.c" 2
$ clang -c foobar.c -save-temps
In file included from foobar.c:1:
In file included from foobar.c:1:
./foobar.h:1:3: error: line marker directive requires a positive integer
argument
# 0 "./foobar.h"
  ^
./foobar.h:2:3: error: line marker directive requires a positive integer
argument
# 0 "./foobar.h" 3
  ^
2 errors generated.
$ cat foobar.i
# 1 "foobar.c"
# 1 "foobar.c" 1
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 132 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "foobar.c" 2
# 1 "./foobar.h" 1
# 0 "./foobar.h"
# 0 "./foobar.h" 3
# 2 "foobar.c" 2

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