message: build: correct depends FreeBSD C{XX}FLAGS
diff: freebsd_CFLAGS=-pipe
  -freebsd_CFLAGS_CXXFLAGS=$(freebsd_CFLAGS)
  +freebsd_CXXFLAGS=$(freebsd_CFLAGS)
  -freebsd_CFLAGS_release_CFLAGS=-O2
  -freebsd_CFLAGS_release_CXXFLAGS=$(freebsd_release_CFLAGS)
  +freebsd_release_CFLAGS=-O2
  +freebsd_release_CXXFLAGS=$(freebsd_release_CFLAGS)
  -freebsd_CFLAGS_debug_CFLAGS=-O1
  -freebsd_CFLAGS_debug_CXXFLAGS=$(freebsd_debug_CFLAGS)
  +freebsd_debug_CFLAGS=-O1
  +freebsd_debug_CXXFLAGS=$(freebsd_debug_CFLAGS)
  ifeq (86,$(findstring 86,$(build_arch)))
  i686_freebsd_CC=clang -m32
  