build: pass correct flags to jimtcl during make distcheck

This is only for the case of a make distcheck.
During a normal release build these flags will be created by configure.gnu

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>

Makefile.am

@@ -2,6 +2,9 @@
 # have all needed files, that a GNU package needs
 AUTOMAKE_OPTIONS = gnu 1.6
 
+# make sure we pass the correct jimtcl flags to distcheck
+DISTCHECK_CONFIGURE_FLAGS = --with-jim-ext=nvp --disable-lineedit
+
 nobase_dist_pkgdata_DATA = \
 	contrib/libdcc/dcc_stdio.c \
 	contrib/libdcc/dcc_stdio.h \