split/extconf.rb in tioga-1.7 vs split/extconf.rb in tioga-1.8

@@ -1,9 +1,9 @@
 # main Tioga installation file
 
 require './mkmf2.rb'
 
-$CFLAGS += " -O2 -Wall "
+$CFLAGS += " -O2 -g -Wall -Werror-implicit-function-declaration"
 
 # Now, if you want to install the include file, you need to
 # set the EXTCONF_RB_INCLUDE
 if ENV.key?("EXTCONF_RB_INCLUDE")
   include = ENV["EXTCONF_RB_INCLUDE"]