-%bcond_without system_expat # build with included expat
-%bcond_without system_freetype # build with included freetype
-%bcond_without system_jbig2dec # build with included jbig2dec
-%bcond_without system_lcms2 # build with included lcms2
+%bcond_without system_expat # system expat
+%bcond_without system_freetype # system freetype
+%bcond_without system_jbig2dec # system jbig2dec
+%bcond_with system_lcms2 # system lcms2
+%bcond_with system_libjpeg # system libjpeg (incompatible with D_MAX_BLOCKS_IN_MCU=64 variant)
+%bcond_with system_libtiff # system libtiff (incompatible with modified libjpeg)