From: Alan Hayward <alan.hayward@arm.com>
Date: Thu, 31 Jan 2019 09:48:39 +0000 (+0000)
Subject: Readline: Cleanup some warnings
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=16bfc2f9705b40a11052f465b83fea2ec0904ce5;p=deliverable%2Fbinutils-gdb.git

Readline: Cleanup some warnings

Cleanup the readline warnings that gdb buildbot complains about.

To prevent wcwidth missing declaration warnings, add the SOURCE /
EXTENSION macros to config.in that have already checked for in
configure.

Ensure pid is a long before printing as one.  Also fix GNU style.

Check the return value of write the same way as history_do_write ().

These changes are consistent with upstream readline.

readline/ChangeLog.gdb:

	* config.h.in: Add SOURCE/EXTENSION macros.
	* histfile.c (history_truncate_file): Check return of write.
	* util.c (_rl_tropen): Ensure pid is long.
---

diff --git a/readline/ChangeLog.gdb b/readline/ChangeLog.gdb
index f05b9dc52c..c59329ee7d 100644
--- a/readline/ChangeLog.gdb
+++ b/readline/ChangeLog.gdb
@@ -1,3 +1,9 @@
+2019-01-31  Alan Hayward  <alan.hayward@arm.com>
+
+	* config.h.in: Add SOURCE/EXTENSION macros.
+	* histfile.c (history_truncate_file): Check return of write.
+	* util.c (_rl_tropen): Ensure pid is long.
+
 2017-05-19  Eli Zaretskii  <eliz@gnu.org>
 
 	* input.c [_WIN32]: Include <conio.h> to avoid compiler warning on
diff --git a/readline/config.h.in b/readline/config.h.in
index 86d86cfa3d..c194e761a4 100644
--- a/readline/config.h.in
+++ b/readline/config.h.in
@@ -1,5 +1,15 @@
 /* config.h.in.  Maintained by hand. */
 
+/* Template definitions for autoconf */
+#undef __EXTENSIONS__
+#undef _ALL_SOURCE
+#undef _GNU_SOURCE
+#undef _POSIX_SOURCE
+#undef _POSIX_1_SOURCE
+#undef _POSIX_PTHREAD_SEMANTICS
+#undef _TANDEM_SOURCE
+#undef _MINIX
+
 /* Define NO_MULTIBYTE_SUPPORT to not compile in support for multibyte
    characters, even if the OS supports them. */
 #undef NO_MULTIBYTE_SUPPORT
diff --git a/readline/histfile.c b/readline/histfile.c
index fffeb3fd31..56cbbf0498 100644
--- a/readline/histfile.c
+++ b/readline/histfile.c
@@ -407,7 +407,8 @@ history_truncate_file (fname, lines)
      truncate to. */
   if (bp > buffer && ((file = open (filename, O_WRONLY|O_TRUNC|O_BINARY, 0600)) != -1))
     {
-      write (file, bp, chars_read - (bp - buffer));
+      if (write (file, bp, chars_read - (bp - buffer)) < 0)
+	rv = errno;
 
 #if defined (__BEOS__)
       /* BeOS ignores O_TRUNC. */
diff --git a/readline/util.c b/readline/util.c
index d402fce842..13bd00c09c 100644
--- a/readline/util.c
+++ b/readline/util.c
@@ -515,11 +515,11 @@ _rl_tropen ()
 	   (sh_get_env_value ("TEMP")
 	    ? sh_get_env_value ("TEMP")
 	    : "."),
-	   getpid());
+	   getpid ());
 #else
-  sprintf (fnbuf, "/var/tmp/rltrace.%ld", getpid());
+  sprintf (fnbuf, "/var/tmp/rltrace.%ld", (long) getpid ());
 #endif
-  unlink(fnbuf);
+  unlink (fnbuf);
   _rl_tracefp = fopen (fnbuf, "w+");
   return _rl_tracefp != 0;
 }