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

[Aurelien Jarno]

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' > $@
 
-- 
2.1.4