Add a few more optional compiler warnings and some (commented out)

ideas for linker flags.

svn path=/trunk/; revision=30853

CMakeLists.txt

@@ -125,6 +125,8 @@ set(WIRESHARK_EXTRA_C_FLAGS
 	-Wpragmas
 	-Wredundant-decls
 	-Wvla
+	-Wc++-compat
+	-Wjump-misses-init
 	# packet-ncp2222.inc prevents this from going into all warnings
 	-Wwrite-strings
 	-Wstrict-prototypes
@@ -173,6 +175,10 @@ endif()
 # todo
 # Same for linker flags, but it looks like it's do-it-yourself here
 # AC_WIRESHARK_GCC_LDFLAGS_CHECK([-Wl,--as-needed])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-flto])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-fwhopr])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-fwhole-program])
+
 
 #The minimum package list
 set(PACKAGELIST GLIB2 PCAP M LEX YACC Perl SH PythonInterp HtmlViewer ${PACKAGELIST})

configure.in

@@ -255,6 +255,8 @@ AC_ARG_ENABLE(extra-gcc-checks,
 		AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wpragmas)
 		AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wredundant-decls)
 		AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wvla)
+		AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wc++-compat)
+		AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wjump-misses-init)
 		#
 		# epan/dissectors/packet-ncp2222.inc blocks this one
 		# for now.
@@ -283,6 +285,9 @@ AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wcast-align)
 AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wformat-security)
 
 AC_WIRESHARK_GCC_LDFLAGS_CHECK([-Wl,--as-needed])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-flto])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-fwhopr])
+# AC_WIRESHARK_GCC_LDFLAGS_CHECK([-fwhole-program])
 
 #
 # If we're running gcc add '-D_U_="__attribute__((unused))"' to CFLAGS as well,