--- ace14/lib/xwin.c	
+++ ace-1.4/lib/xwin.c	
@@ -89,10 +89,10 @@
 /* Motif window hints */
 typedef struct
 {
-  unsigned flags;
-  unsigned functions;
-  unsigned decorations;
-  int inputMode;
+  unsigned long flags;
+  unsigned long functions;
+  unsigned long decorations;
+  long inputMode;
 } PropMotifWmHints;
 
 typedef PropMotifWmHints        PropMwmHints;
@@ -841,13 +841,13 @@
   png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, 0, 0, 0);
   info_ptr = png_create_info_struct (png_ptr);
 
-  if (setjmp (png_ptr->jmpbuf)) {
+  if (setjmp (png_jmpbuf (png_ptr))) {
     fprintf(stderr, "Invalid PNG image!\n");
     return;
   }
 
   file_bytes = src->file_data;
-  png_set_read_fn (png_ptr, (voidp)&file_bytes, (png_rw_ptr)png_reader);
+  png_set_read_fn (png_ptr, (void *)&file_bytes, (png_rw_ptr)png_reader);
 
   png_read_info (png_ptr, info_ptr);
 
--- ace14/lib/make-imglib.c	
+++ ace-1.4/lib/make-imglib.c	
@@ -86,7 +86,7 @@
     png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, 0, 0, 0);
     info_ptr = png_create_info_struct (png_ptr);
 
-    if (setjmp (png_ptr->jmpbuf)) {
+    if (setjmp (png_jmpbuf (png_ptr))) {
       fclose (f);
       continue;
     }

--- ace14/lib/Makefile.am	
+++ ace-1.4/lib/Makefile.am
@@ -6,7 +6,7 @@
 CLEANFILES = images.c images.d
 
 INCLUDES = $(X_CFLAGS) @PDA@
-AM_LDFLAGS = $(X_LIBS)
+AM_LDFLAGS = $(X_LIBS) -lpng -lz -lm
 
 BUILD_CC = @BUILD_CC@
 AR = @AR@

--- ace-1.4/lib/xwin.c  2020-10-07 02:07:59.000000000 +0300
+++ ace14/lib/xwin.c    2020-10-07 02:15:05.941784967 +0300
@@ -55,7 +55,6 @@
   { "-visual", OPTION_INTEGER, &visual_id },
   { 0, 0, 0 }
 };
-OptionDesc *xwin_options = xwin_options_list;

 Display *display=0;
 int screen=0;
--- ace-1.4/config.guess	2012-03-24 19:00:49.000000000 +0100
+++ ace14/config.guess	2021-07-05 11:02:16.685843793 +0200
@@ -882,6 +882,9 @@
 	    echo ${UNAME_MACHINE}-unknown-linux-gnueabi
 	fi
 	exit ;;
+    aarch64*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
     avr32*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;