--- graphviz-2.49.1/configure.ac.orig	2021-10-04 10:51:16.579411906 +0200
+++ graphviz-2.49.1/configure.ac	2021-10-04 10:51:26.473594056 +0200
@@ -1185,7 +1185,7 @@
 	use_python="No (python is too old)"
       else
         PYTHON_PREFIX=`$PYTHON -c "import sys; print(sys.prefix)"`
-        PYTHON_INCLUDES=-I$PYTHON_PREFIX/include/python$PYTHON_VERSION
+        PYTHON_INCLUDES=-I$PYTHON_PREFIX/include/python${PYTHON_VERSION}m
 	PYTHON_LIBS="-undefined dynamic_lookup"
         PYTHON_INSTALL_DIR="`$PYTHON -c 'from distutils import sysconfig; print(sysconfig.get_python_lib(1,0))'`"
         save_CPPFLAGS=$CPPFLAGS