Make proper checks in configure

now compiles with gcc 5.1.0

src/Makefile.am

@@ -195,18 +195,5 @@ if TUNEMU
 LIBS += -lpcap
 endif
 
-AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -DSBINDIR=\"$(sbindir)\" -iquote. \
-	-Weverything -Wno-reserved-id-macro -Wno-padded -Wno-disabled-macro-expansion -Wno-shorten-64-to-32 -Wno-format-nonliteral \
-	-Werror=conditional-uninitialized \
-	-Werror=uninitialized \
-	-Werror=missing-field-initializers \
-	-Werror=missing-variable-declarations \
-	-Wno-conversion \
-	-Wno-date-time \
-	-Wno-shadow \
-	-Wno-vla \
-	-Wno-unused-macros \
-	-Wno-cast-qual \
-	-ferror-limit=10
-#	-Werror \
+AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -DSBINDIR=\"$(sbindir)\" -iquote. 
 #-fsanitize=address