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Re: Using gnulib with -pedantic, I get many warnings about #include_next
From: |
Bruno Haible |
Subject: |
Re: Using gnulib with -pedantic, I get many warnings about #include_next |
Date: |
Mon, 25 Aug 2008 03:13:35 +0200 |
User-agent: |
KMail/1.5.4 |
Eric Blake wrote:
> But obviously, glibc has some way of marking a header file as a system
> header, so that the use of extensions such as #include_next do not trigger
> gcc -pedantic warnings. Is there a #pragma that glibc uses to do that?
> And should gnulib do the same?
The code that emits this warning in gcc is this:
static void
directive_diagnostics (cpp_reader *pfile, const directive *dir, int indented)
{
/* Issue -pedantic warnings for extensions. */
if (CPP_PEDANTIC (pfile)
&& ! pfile->state.skipping
&& dir->origin == EXTENSION)
cpp_error (pfile, CPP_DL_PEDWARN, "#%s is a GCC extension", dir->name);
Reuben has chosen to set CPP_PEDANTIC to true, so in order to get rid of the
warning, he needs to make dir->origin == EXTENSION evaluate to false.
This means, specify the directory containing the built gnulib header files
with '-isystem' instead of '-I'.
Bruno
- Please add strrstr, Reuben Thomas, 2008/08/01
- Re: Please add strrstr, Bruno Haible, 2008/08/02
- Using gnulib with -pedantic, I get many warnings about #include_next, Reuben Thomas, 2008/08/24
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Bruno Haible, 2008/08/24
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Bruno Haible, 2008/08/24
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Reuben Thomas, 2008/08/24
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Eric Blake, 2008/08/24
- Re: Using gnulib with -pedantic, I get many warnings about #include_next,
Bruno Haible <=
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Paolo Bonzini, 2008/08/25
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Paolo Bonzini, 2008/08/25
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Bruno Haible, 2008/08/25
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Reuben Thomas, 2008/08/25
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Eric Blake, 2008/08/25
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Bruno Haible, 2008/08/29
- Re: Using gnulib with -pedantic, I get many warnings about #include_next, Eric Blake, 2008/08/30
- Re: unintentional commits, Bruno Haible, 2008/08/30