[cfe-commits] [patch] Avoid gcc warning when using the clang preprocessor

[Rafael Espindola]

> The good news is the correct one is smaller :-)

Is it OK?

The problem it fixes is that in the startup sequence:

# 1 "test.c"
# 1 "test.c" 1
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 105 "<built-in>" 3
# 105 "<command line>" 1
# 1 "test.c" 2

We are going from <buildt-in> to <command line> and then exiting
directly to test.c. The patch adds a

# 1 "<built-in>" 2

so that we exit <command line> first. This fixes the following gcc
warning when processing clang preprocessed code:

line-map.c: file "test.c" left but not entered

Cheers,
-- 
Rafael Ávila de Espíndola
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