Description: fix build failure with GCC5:
 build isdnlog with -fgnu89-inline
Origin: vendor
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777920
Author: gregor herrmann <gregoa@debian.org>
Last-Update: 2015-07-20

--- a/isdnlog/Makefile.in
+++ b/isdnlog/Makefile.in
@@ -1719,7 +1719,7 @@
 
 # export CFLAGS  = -Wall -pipe -O6 -fomit-frame-pointer -fforce-mem -fforce-addr -funroll-loops -fstrength-reduce
 
-export CFLAGS  = -Wall -pipe
+export CFLAGS  = -Wall -pipe -fgnu89-inline
 ifndef _CC
 export _CC  = gcc
 endif