Bug#722132: Small test case

[Julien Puydt]

Hi,

for a small test case, the following test.c:
#include <glib.h>

int
main (int argc,
      char* argv[])
{
  return 0;
}

compiled with "gcc `pkg-config --cflags glib-2.0` -o test test.c"
works perfectly.

And "iwyu `pkg-config --cflags glib-2.0` -o test test.c" shows the error
with stddef.h, before it correctly notices the #include is useless.

About my system:
- amd64
- no clang

Hope that helps,

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