# ----------------------------------------------------------------------------
# GTK flag setup (using pkg-config)
# ----------------------------------------------------------------------------


  LDFLAGS += $(shell $(PKG_CONFIG) --libs libxml-2.0 libcurl libhubbub libcss)
  LDFLAGS += $(shell $(PKG_CONFIG) --libs openssl)

  # define additional CFLAGS and LDFLAGS requirements for pkg-configed libs here
  NETSURF_FEATURE_RSVG_CFLAGS := -DWITH_RSVG
  NETSURF_FEATURE_NSSVG_CFLAGS := -DWITH_NS_SVG
  NETSURF_FEATURE_ROSPRITE_CFLAGS := -DWITH_NSSPRITE
  NETSURF_FEATURE_BMP_CFLAGS := -DWITH_BMP
  NETSURF_FEATURE_GIF_CFLAGS := -DWITH_GIF
  NETSURF_FEATURE_PNG_CFLAGS := -DWITH_PNG
  NETSURF_FEATURE_WEBP_CFLAGS := -DWITH_WEBP

  # add a line similar to below for each optional pkg-configed lib here
  $(eval $(call pkg_config_find_and_add,RSVG,librsvg-2.0,SVG))
  $(eval $(call pkg_config_find_and_add,NSSVG,libsvgtiny,SVG))
  $(eval $(call pkg_config_find_and_add,ROSPRITE,librosprite,Sprite))
  $(eval $(call pkg_config_find_and_add,BMP,libnsbmp,BMP))
  $(eval $(call pkg_config_find_and_add,GIF,libnsgif,GIF))
  $(eval $(call pkg_config_find_and_add,PNG,libpng,PNG  ))

  # no pkg-config for this library
  $(eval $(call feature_enabled,WEBP,-DWITH_WEBP,-lwebp -lvpx,WebP (libwebp)))

  GTKCFLAGS := -std=c99 -Dgtk -Dnsgtk \
		-DGTK_DISABLE_DEPRECATED \
		-D_BSD_SOURCE \
		-D_XOPEN_SOURCE=600 \
		-D_POSIX_C_SOURCE=200112L \
		-D_NETBSD_SOURCE \
		-DGTK_RESPATH=\"$(NETSURF_GTK_RESOURCES)\" \
		$(WARNFLAGS) -I. -g \
		$(shell $(PKG_CONFIG) --cflags libglade-2.0 gtk+-2.0) \
		$(shell $(PKG_CONFIG) --cflags libhubbub libcurl) \
		$(shell $(PKG_CONFIG) --cflags openssl) \
		$(shell xml2-config --cflags)

  GTKLDFLAGS := $(shell $(PKG_CONFIG) --cflags --libs libglade-2.0 gtk+-2.0 gthread-2.0 gmodule-2.0 lcms)

  CFLAGS += $(GTKCFLAGS)
  LDFLAGS += $(GTKLDFLAGS)

  # ---------------------------------------------------------------------------
  # Windows flag setup
  # ---------------------------------------------------------------------------

  ifeq ($(HOST),Windows_NT)
    CFLAGS += -U__STRICT_ANSI__
  endif