nspr: fixed by explicitely adding '--enable-64bit' configure option when we build for 64bit architectures

develop/nspr/nspr.conf

@@ -18,6 +18,11 @@ libdir="$libdir/nspr"
 hook_add preconf 5 'mkdir -p objdir; cd objdir'
 configscript="../configure"
 
+# 64bit architecture support
+case "$arch" in
+	*64)	var_append extraconfopt ' ' '--enable-64bit' ;;
+esac
+
 var_append makeinstopt ' ' 'NSDISTMODE=copy'
 
 hook_add postmake 5 'nspr_install'