--- postgresql-16.0/configure.orig	2023-10-23 14:49:19.956714781 -0400
+++ postgresql-16.0/configure	2023-10-23 14:57:21.152705840 -0400
@@ -10559,13 +10559,13 @@ fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking Python configuration directory" >&5
 $as_echo_n "checking Python configuration directory... " >&6; }
-python_configdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBPL'))))"`
+test -n "$python_configdir" || python_configdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBPL'))))"`
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $python_configdir" >&5
 $as_echo "$python_configdir" >&6; }
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking Python include directory" >&5
 $as_echo_n "checking Python include directory... " >&6; }
-python_includespec=`${PYTHON} -c "import sysconfig; print('-I' + sysconfig.get_config_var('INCLUDEPY'))"`
+test -n "$python_includespec" || python_includespec=`${PYTHON} -c "import sysconfig; print('-I' + sysconfig.get_config_var('INCLUDEPY'))"`
 if test "$PORTNAME" = win32 ; then
     python_includespec=`echo $python_includespec | sed 's,[\],/,g'`
 fi
@@ -10577,7 +10577,7 @@ $as_echo "$python_includespec" >&6; }
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link an embedded Python application" >&5
 $as_echo_n "checking how to link an embedded Python application... " >&6; }
 
-python_libdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBDIR'))))"`
+test -n "$python_libdir" || python_libdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBDIR'))))"`
 python_ldlibrary=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LDLIBRARY'))))"`
 
 # If LDLIBRARY exists and has a shlib extension, use it verbatim.