Tweak DEVELOPER_CFLAGS.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1407 d4fa192b-c00b-0410-8231-f00ffab90ce4

configure.ac

@@ -101,7 +101,13 @@ AC_CHECK_FUNCS([poll])
 
 # Now that we're done using the compiler to look for functions and
 # libraries, set CFLAGS to what we want them to be for our own code
-DEVELOPER_CFLAGS="-Wall -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wformat"
+
+# This corresponds to FreeBSD's WARNS level 6
+DEVELOPER_CFLAGS="-Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wcast-align -Wunused-parameter -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wformat"
+
+# Turn off warnings for two issues which occur frequently in our code
+DEVELOPER_CFLAGS="${DEVELOPER_CFLAGS} -Wno-missing-field-initializers -Wno-sign-compare"
+
 AC_ARG_ENABLE(developer-warnings,
 	AS_HELP_STRING([--enable-developer-warnings],[enable strict warnings (default is NO)]),
 	CFLAGS="${CFLAGS} ${DEVELOPER_CFLAGS}")