--- Python-3.10.0rc1/config.sub	2021-08-03 19:03:07.361000000 +0100
+++ Python-3.10.0rc1/config.sub	2021-08-03 19:04:06.425786525 +0100
@@ -1485,6 +1485,8 @@
 	-oss*)
 		os=-sysv3
 		;;
+	-serenity*)
+		;;
 	-svr4*)
 		os=-sysv4
 		;;
--- Python-3.10.0rc1/configure.ac	2021-08-03 19:04:59.784000000 +0100
+++ Python-3.10.0rc1/configure.ac	2021-08-03 19:08:42.069896469 +0100
@@ -391,6 +391,9 @@
        # a lot of different things including 'define_xopen_source'
        # in the case statement below.
 	case "$host" in
+	*-*-serenity*)
+		ac_sys_system=SerenityOS
+		;;
 	*-*-linux-android*)
 		ac_sys_system=Linux-android
 		;;
@@ -429,6 +432,7 @@
 	linux*) MACHDEP="linux";;
 	cygwin*) MACHDEP="cygwin";;
 	darwin*) MACHDEP="darwin";;
+	serenityos*) MACHDEP="serenityos";;
 	'')	MACHDEP="unknown";;
     esac
 fi
@@ -437,6 +441,9 @@
 AC_SUBST(_PYTHON_HOST_PLATFORM)
 if test "$cross_compiling" = yes; then
 	case "$host" in
+	*-*-serenity*)
+		_host_cpu=$host_cpu
+		;;
 	*-*-linux*)
 		case "$host_cpu" in
 		arm*)
@@ -2757,7 +2764,7 @@
 	    LINKFORSHARED="-Wl,-E -Wl,+s";;
 #	    LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;
 	Linux-android*) LINKFORSHARED="-pie -Xlinker -export-dynamic";;
-	Linux*|GNU*) LINKFORSHARED="-Xlinker -export-dynamic";;
+	Linux*|GNU*|SerenityOS*) LINKFORSHARED="-Xlinker -export-dynamic";;
 	# -u libsys_s pulls in all symbols in libsys
 	Darwin/*)
 		LINKFORSHARED="$extra_undefs -framework CoreFoundation"
--- Python-3.10.0rc1/configure	2021-08-03 19:06:33.593000000 +0100
+++ Python-3.10.0rc1/configure	2021-08-03 19:08:53.870858123 +0100
@@ -3697,6 +3697,9 @@
        # a lot of different things including 'define_xopen_source'
        # in the case statement below.
 	case "$host" in
+	*-*-serenity*)
+		ac_sys_system=SerenityOS
+		;;
 	*-*-linux-android*)
 		ac_sys_system=Linux-android
 		;;
@@ -3735,6 +3738,7 @@
 	linux*) MACHDEP="linux";;
 	cygwin*) MACHDEP="cygwin";;
 	darwin*) MACHDEP="darwin";;
+	serenityos*) MACHDEP="serenityos";;
 	'')	MACHDEP="unknown";;
     esac
 fi
@@ -3744,6 +3748,9 @@
 
 if test "$cross_compiling" = yes; then
 	case "$host" in
+	*-*-serenity*)
+		_host_cpu=$host_cpu
+		;;
 	*-*-linux*)
 		case "$host_cpu" in
 		arm*)
@@ -10788,7 +10795,7 @@
 	    LINKFORSHARED="-Wl,-E -Wl,+s";;
 #	    LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;
 	Linux-android*) LINKFORSHARED="-pie -Xlinker -export-dynamic";;
-	Linux*|GNU*) LINKFORSHARED="-Xlinker -export-dynamic";;
+	Linux*|GNU*|SerenityOS*) LINKFORSHARED="-Xlinker -export-dynamic";;
 	# -u libsys_s pulls in all symbols in libsys
 	Darwin/*)
 		LINKFORSHARED="$extra_undefs -framework CoreFoundation"