message: build: Use config_opts instead of passing a compiler flag directly
  This approach is safer as it allows the configure script to check the
  availability of a compiler flag.
diff: @@ -8,7 +8,7 @@ $(package)_dependencies=libxcb
  define $(package)_set_vars
  $(package)_config_opts = --disable-shared --disable-devel-docs --without-doxygen
  $(package)_config_opts += --disable-dependency-tracking --enable-option-checking
  -$(package)_cflags += -fPIC
  +$(package)_config_opts += --with-pic
  endef
  define $(package)_preprocess_cmds
  