More portability fixes in "libedit",

backported from 5.1.32 into 5.1.31sp1,
originally done by Jonathan and Kent.

Fixing issues for AIX, HP-UX, i5os, and FreeBSD.

cmd-line-utils/libedit/makelist.sh

@@ -84,7 +84,7 @@ case $FLAG in
     cat $FILES | $AWK '
 	BEGIN {
 	    printf("/* Automatically generated file, do not edit */\n");
-	    printf("#include \"sys.h\"\n#include \"el.h\"\n");
+	    printf("#include \"config.h\"\n#include \"el.h\"\n");
 	    printf("private const struct el_bindings_t el_func_help[] = {\n");
 	    low = "abcdefghijklmnopqrstuvwxyz_";
 	    high = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_";
@@ -169,7 +169,7 @@ case $FLAG in
     cat $FILES | $AWK '/el_action_t/ { print $3 }' | sort | $AWK '
 	BEGIN {
 	    printf("/* Automatically generated file, do not edit */\n");
-	    printf("#include \"sys.h\"\n#include \"el.h\"\n");
+	    printf("#include \"config.h\"\n#include \"el.h\"\n");
 	    printf("private const el_func_t el_func[] = {");
 	    maxlen = 80;
 	    needn = 1;

cmd-line-utils/libedit/readline.c

@@ -51,13 +51,10 @@
 #else
 #include "np/vis.h"
 #endif
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
+#include "readline/readline.h"
 #include "el.h"
 #include "fcns.h"		/* for EL_NUM_FCNS */
 #include "histedit.h"
-#include "readline/readline.h"
 #include "filecomplete.h"
 
 void rl_prep_terminal(int);

cmd-line-utils/libedit/vi.c

@@ -914,14 +914,14 @@ vi_comment_out(EditLine *el, int c)
  * NB: posix implies that we should enter insert mode, however
  * this is against historical precedent...
  */
-#ifdef __weak_reference
+#if defined(__weak_reference) && !defined(__FreeBSD__)
 extern char *get_alias_text(const char *) __weak_reference(get_alias_text);
 #endif
 protected el_action_t
 /*ARGSUSED*/
 vi_alias(EditLine *el, int c)
 {
-#ifdef __weak_reference
+#if defined(__weak_reference) && !defined(__FreeBSD__)
 	char alias_name[3];
 	char *alias_text;