Include bscconfig.h without ../ for the srcdir != build dir case
diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index 5dac9de..a21cb80 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -1,4 +1,4 @@
-INCLUDES = $(all_includes) -I$(top_srcdir)/include
+INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
 AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS)
 AM_LDFLAGS = $(LIBOSMOCORE_LIBS)