diff -Paur --no-dereference -- libglib.upstream/configure libglib/configure
--- libglib.upstream/configure
+++ libglib/configure
@@ -22213,8 +22213,9 @@
           fi
 
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
-$as_echo "none" >&6; }
+  glib_cv_long_long_format=ll
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ll" >&5
+$as_echo "ll" >&6; }
 fi
 
 elif  test x$ac_cv_sizeof___int64 = x8; then :
@@ -22317,6 +22318,7 @@
 fi
 
 
+# TODO: Remove this check and remove G_HAVE_GROWING_STACK from public API.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for growing stack pointer" >&5
 $as_echo_n "checking for growing stack pointer... " >&6; }
 if ${glib_cv_stack_grows+:} false; then :
@@ -22324,10 +22326,7 @@
 else
 
         if test "$cross_compiling" = yes; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
+          glib_cv_stack_grows=irrevant
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -24220,7 +24219,10 @@
 $as_echo "yes" >&6; }
                                           NAMESER_COMPAT_INCLUDE="#include <arpa/nameser_compat.h>"
 else
-  as_fn_error $? "could not compile test program either way" "$LINENO" 5
+  # PATCH: Sortix doesn't have <arpa/nameser.h> and probably won't by design, so
+  #        don't error out here but just report absence.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
@@ -24294,7 +24296,10 @@
 $as_echo "in -lbind" >&6; }
                                          NETWORK_LIBS="-lbind $NETWORK_LIBS"
 else
-  as_fn_error $? "not found" "$LINENO" 5
+  # PATCH: Sortix doesn't have <resolv.h> at this time.
+  #as_fn_error $? "not found" "$LINENO" 5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
@@ -24689,7 +24694,7 @@
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  ac_cv_func_vsnprintf_c99=no
+  ac_cv_func_vsnprintf_c99=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -24754,7 +24759,7 @@
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  ac_cv_func_printf_unix98=no
+  ac_cv_func_printf_unix98=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -25146,7 +25151,7 @@
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  ac_cv_func_snprintf_c99=no
+  ac_cv_func_snprintf_c99=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -25547,6 +25552,7 @@
 
 
 # Check for strlcpy
+# TODO: The runtime check is to detect an ancient solaris bug so remove it.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for OpenBSD strlcpy/strlcat" >&5
 $as_echo_n "checking for OpenBSD strlcpy/strlcat... " >&6; }
 if ${glib_cv_have_strlcpy+:} false; then :
@@ -25554,7 +25560,7 @@
 else
 
 if test "$cross_compiling" = yes; then :
-  glib_cv_have_strlcpy=no
+  glib_cv_have_strlcpy=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -25917,10 +25923,7 @@
 else
 
 		if test "$cross_compiling" = yes; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
+  glib_cv_uscore=no
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
diff -Paur --no-dereference -- libglib.upstream/gio/ginetsocketaddress.c libglib/gio/ginetsocketaddress.c
--- libglib.upstream/gio/ginetsocketaddress.c
+++ libglib/gio/ginetsocketaddress.c
@@ -204,10 +204,10 @@
 	  return FALSE;
 	}
 
+      memset (&sock, 0, sizeof(sock));
       sock->sin_family = AF_INET;
       sock->sin_port = g_htons (addr->priv->port);
       memcpy (&(sock->sin_addr.s_addr), g_inet_address_to_bytes (addr->priv->address), sizeof (sock->sin_addr));
-      memset (sock->sin_zero, 0, sizeof (sock->sin_zero));
       return TRUE;
     }
   else if (family == AF_INET6)
diff -Paur --no-dereference -- libglib.upstream/gio/gnetworking.h.in libglib/gio/gnetworking.h.in
--- libglib.upstream/gio/gnetworking.h.in
+++ libglib/gio/gnetworking.h.in
@@ -41,13 +41,19 @@
 #include <netdb.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
+#if __has_include(<resolv.h>)
 #include <resolv.h>
+#endif
 #include <sys/socket.h>
 #include <sys/un.h>
+#if __has_include(<net/if.h>)
 #include <net/if.h>
+#endif
 
 #include <arpa/inet.h>
+#if __has_include(<arpa/nameser.h>)
 #include <arpa/nameser.h>
+#endif
 @NAMESER_COMPAT_INCLUDE@
 
 #ifndef T_SRV
diff -Paur --no-dereference -- libglib.upstream/gio/gresolver.c libglib/gio/gresolver.c
--- libglib.upstream/gio/gresolver.c
+++ libglib/gio/gresolver.c
@@ -335,8 +335,12 @@
    * address, so if inet_aton() succeeds, then it's an address we want
    * to reject.
    */
+#if defined(__sortix__)
+  if ((void) addr, (void) ip4addr, 0)
+#else
   if (inet_aton (hostname, &ip4addr))
 #endif
+#endif
     {
       g_set_error (error, G_RESOLVER_ERROR, G_RESOLVER_ERROR_NOT_FOUND,
                    _("Error resolving “%s”: %s"),
diff -Paur --no-dereference -- libglib.upstream/gio/gsocket.c libglib/gio/gsocket.c
--- libglib.upstream/gio/gsocket.c
+++ libglib/gio/gsocket.c
@@ -80,6 +80,39 @@
 #include "gwin32networking.h"
 #endif
 
+#if defined(__sortix__)
+#ifndef IP_TTL
+#define IP_TTL (-1)
+#endif
+#ifndef IP_MULTICAST_LOOP
+#define IP_MULTICAST_LOOP (-1)
+#endif
+#ifndef IP_MULTICAST_TTL
+#define IP_MULTICAST_TTL (-1)
+#endif
+#if !defined(IP_ADD_MEMBERSHIP) && !defined(IP_DROP_MEMBERSHIP) && !defined(HAVE_IP_MREQN)
+struct ip_mreq
+{
+	struct in_addr imr_multiaddr;
+	struct in_addr imr_interface;
+};
+#endif
+#ifndef IP_ADD_MEMBERSHIP
+#define IP_ADD_MEMBERSHIP (-1)
+#endif
+#ifndef IP_DROP_MEMBERSHIP
+#define IP_DROP_MEMBERSHIP (-1)
+#endif
+#ifndef SO_NREAD
+#define SO_NREAD (-1)
+#endif
+#ifndef CMSG_DATA
+#define CMSG_DATA(x) ((unsigned char*) x)
+#define CMSG_FIRSTHDR(x) ((struct cmsghdr *) NULL)
+#define CMSG_NXTHDR(x, y) ((struct cmsghdr *) NULL)
+#endif
+#endif
+
 /**
  * SECTION:gsocket
  * @short_description: Low-level socket object
@@ -426,7 +459,7 @@
     struct sockaddr sa;
   } address;
   gint fd;
-  guint addrlen;
+  socklen_t addrlen;
   int value, family;
   int errsv;
 
@@ -1943,7 +1976,7 @@
     struct sockaddr_storage storage;
     struct sockaddr sa;
   } buffer;
-  guint len = sizeof (buffer);
+  socklen_t len = sizeof (buffer);
 
   g_return_val_if_fail (G_IS_SOCKET (socket), NULL);
 
@@ -1979,7 +2012,7 @@
     struct sockaddr_storage storage;
     struct sockaddr sa;
   } buffer;
-  guint len = sizeof (buffer);
+  socklen_t len = sizeof (buffer);
 
   g_return_val_if_fail (G_IS_SOCKET (socket), NULL);
 
@@ -5792,7 +5825,7 @@
 		     gint     *value,
 		     GError  **error)
 {
-  guint size;
+  socklen_t size;
 
   g_return_val_if_fail (G_IS_SOCKET (socket), FALSE);
 
@@ -5817,7 +5850,7 @@
   /* If the returned value is smaller than an int then we need to
    * slide it over into the low-order bytes of *value.
    */
-  if (size != sizeof (gint))
+  if (size < sizeof (gint))
     *value = *value >> (8 * (sizeof (gint) - size));
 #endif
 
diff -Paur --no-dereference -- libglib.upstream/gio/gthreadedresolver.c libglib/gio/gthreadedresolver.c
--- libglib.upstream/gio/gthreadedresolver.c
+++ libglib/gio/gthreadedresolver.c
@@ -22,6 +22,7 @@
 #include <glib.h>
 #include "glibintl.h"
 
+#include <endian.h>
 #include <stdio.h>
 #include <string.h>
 
@@ -267,7 +268,15 @@
 
 #if defined(G_OS_UNIX)
 
-#if defined __BIONIC__ && !defined BIND_4_COMPAT
+#if (defined __BIONIC__ || defined __sortix__ ) && !defined BIND_4_COMPAT
+#if defined(__sortix__)
+static int h_errno;
+typedef unsigned char u_char;
+#define HOST_NOT_FOUND 1
+#define NO_DATA 2
+#define TRY_AGAIN 3
+#define res_query(a, b, c, d, e) ((void) (a), (void) (b), (void) (c), (void) (d), (void) (e), -1)
+#endif
 /* Copy from bionic/libc/private/arpa_nameser_compat.h
  * and bionic/libc/private/arpa_nameser.h */
 typedef struct {
diff -Paur --no-dereference -- libglib.upstream/gio/gunixmounts.c libglib/gio/gunixmounts.c
--- libglib.upstream/gio/gunixmounts.c
+++ libglib/gio/gunixmounts.c
@@ -909,6 +909,20 @@
   return return_list;
 }
 
+#elif defined(__sortix__)
+
+static char *
+get_mtab_monitor_file (void)
+{
+  return NULL;
+}
+
+static GList *
+_g_get_unix_mounts (void)
+{
+  return NULL;
+}
+
 /* Common code {{{2 */
 #else
 #error No _g_get_unix_mounts() implementation for system
@@ -1432,6 +1446,14 @@
   return _g_get_unix_mounts ();
 }
 
+#elif defined(__sortix__)
+
+static GList *
+_g_get_unix_mount_points (void)
+{
+  return NULL;
+}
+
 /* Common code {{{2 */
 #else
 #error No g_get_mount_table() implementation for system
diff -Paur --no-dereference -- libglib.upstream/glib/Makefile.in libglib/glib/Makefile.in
--- libglib.upstream/glib/Makefile.in
+++ libglib/glib/Makefile.in
@@ -3002,6 +3002,8 @@
 
 distclean: distclean-recursive
 		-rm -f ./$(DEPDIR)/gspawn-win32-helper-console.Po
+	-rm -f ./$(DEPDIR)/giounix.Plo
+	-rm -f ./$(DEPDIR)/gspawn.Plo
 	-rm -f ./$(DEPDIR)/gspawn-win32-helper.Po
 	-rm -f ./$(DEPDIR)/gspawn-win64-helper-console.Po
 	-rm -f ./$(DEPDIR)/gspawn-win64-helper.Po
diff -Paur --no-dereference -- libglib.upstream/Makefile.in libglib/Makefile.in
--- libglib.upstream/Makefile.in
+++ libglib/Makefile.in
@@ -1792,6 +1792,7 @@
 distclean: distclean-recursive
 	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
 	-rm -f Makefile
+	-find . -name '*.pyc' -delete
 distclean-am: clean-am distclean-generic distclean-hdr \
 	distclean-libtool distclean-local distclean-tags