[PATCH] Pass -P to the preprocessor when generating filenames for the manpage.

[Matt Turner]

On Wed, Sep 9, 2015 at 2:44 PM, Aurelien Jarno <aurelien at aurel32.net> wrote:
> From: Stefan Dirsch <sndirsch at suse.de>
>
> Fixes build with GCC 5. Patch by Richard Biener <rguenther at suse.com>
> ---
>  man/Makefile.am | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> sessreg doesn't build with GCC 5 (BZ90615), due to new line markers in
> the preprocessor output. GCC documentation advise to use -P [1]. This is
> the solution chosen by freebsd [2], suse [3] or suggested in the debian
> bug log [4]. Note that it is supported by at least clang and oracle
> studio.
>
> In order to avoid every for distribution to implement this solution in
> a different way, I have just taken the suse patch and I am sending it
> with this mail. I hope it could be applied that way.
>
> [1] http://gcc.gnu.org/gcc-5/porting_to.html
> [2] https://reviews.freebsd.org/rP382986
> [3] http://lists.opensuse.org/opensuse-commit/2015-02/msg01337.html
> [4] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=778176#36
>
>
> diff --git a/man/Makefile.am b/man/Makefile.am
> index 665ace5..2e5f146 100644
> --- a/man/Makefile.am
> +++ b/man/Makefile.am
> @@ -9,7 +9,7 @@ SUFFIXES = .$(APP_MAN_SUFFIX) .man
>
>  AM_CPPFLAGS = -I$(top_builddir) -I$(top_srcdir)
>  filenames.sed: filenames.sed.c
> -       $(AM_V_GEN)$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
> +       $(AM_V_GEN)$(CPP) -P $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
>             $(AM_CPPFLAGS) $(CPPFLAGS) $(srcdir)/filenames.sed.c | \
>             $(SED) -n -e '/s|__/ p' -e '/^\/__/ p' > $@
>
> --

This works for me. I'm happy to see it committed (and I can do that
for you if you want -- just let me know).