[hb-ft] Fix build when Multiple Master font support is disabled in freetype
FT_Set_Var_Blend_Coordinates() is not available when "Multiple Master
font interface" is disabled in freetype's modules.cfg
diff --git a/configure.ac b/configure.ac
index 6d8b577..dc21ad6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -354,6 +354,7 @@
save_libs=$LIBS
LIBS="$LIBS $FREETYPE_LIBS"
AC_CHECK_FUNCS(FT_Get_Var_Blend_Coordinates)
+ AC_CHECK_FUNCS(FT_Set_Var_Blend_Coordinates)
LIBS=$save_libs
fi
AM_CONDITIONAL(HAVE_FREETYPE, $have_freetype)
