https://sourceforge.net/tracker/?func=detail&aid=3601612&group_id=73485&atid=537940

--- a/configure
+++ b/configure
@@ -26488,7 +26488,6 @@
 
 # Assume that delegate headers reside under same directory as ImageMagick
 # installation prefix.
-MAGICK_CPPFLAGS="-I$INCLUDE_DIR/ImageMagick $MAGICK_CPPFLAGS"
 
 #
 # Find the X11 RGB database
@@ -29490,8 +29490,8 @@
     then
       freetype_prefix=`${freetype_config} --prefix`
       freetype_exec_prefix=`${freetype_config} --exec-prefix`
-      LDFLAGS="$LDFLAGS -L${freetype_exec_prefix}/lib"
-      CPPFLAGS="$CPPFLAGS -I${freetype_prefix}/include/freetype2"
+      LDFLAGS="$LDFLAGS `${PKG_CONFIG:-pkg-config} freetype2 --libs`"
+      CPPFLAGS="$CPPFLAGS `${PKG_CONFIG:-pkg-config} freetype2 --cflags`"
     fi
 
 dnl First see if there is a library
@@ -35767,7 +35767,7 @@
 MAGICK_CXXFLAGS="$CXXFLAGS"
 MAGICK_CPPFLAGS=`echo $MAGICK_CPPFLAGS | sed -e 's/  */ /g'`
 MAGICK_PCFLAGS=`echo $MAGICK_PCFLAGS | sed -e 's/  */ /g'`
-MAGICK_LDFLAGS="-L$LIB_DIR $LDFLAGS"
+MAGICK_LDFLAGS="$LDFLAGS"
 MAGICK_LIBS="-lMagickCore $MAGICK_DEP_LIBS $MAGICK_API_LIBLTDL"