Index: rrdtool-1.7.0/m4/acinclude.m4
===================================================================
--- rrdtool-1.7.0.orig/m4/acinclude.m4
+++ rrdtool-1.7.0/m4/acinclude.m4
@@ -426,12 +426,7 @@ AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
 [AC_REQUIRE([AM_PATH_PYTHON])
 AC_MSG_CHECKING(for headers required to compile python extensions)
 dnl deduce PYTHON_INCLUDES
-py_prefix=`$PYTHON -c "import sys; print(sys.prefix)"`
-py_exec_prefix=`$PYTHON -c "import sys; print(sys.exec_prefix)"`
-PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
-if test "$py_prefix" != "$py_exec_prefix"; then
-  PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
-fi
+PYTHON_INCLUDES="-I"`$PYTHON -c "import sysconfig; print(sysconfig.get_path('include'))"`
 AC_SUBST(PYTHON_INCLUDES)
 dnl check if the headers exist:
 save_CPPFLAGS="$CPPFLAGS"