From: Tom Tromey <tom@tromey.com>
Date: Sat, 16 Nov 2024 20:43:22 +0000 (-0700)
Subject: Fix readline build on mingw
X-Git-Tag: gdb-16-branchpoint~81
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=975cb893f45de2a927e226883e7a76ee5e333baa;p=thirdparty%2Fbinutils-gdb.git

Fix readline build on mingw

Upstream readline 8.2 does not build on mingw.  This patch fixes the
build, but I do not know how well it works.

I've submitted this to readline here:

    https://lists.gnu.org/archive/html/bug-readline/2024-11/msg00007.html

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32265
---

diff --git a/readline/readline/input.c b/readline/readline/input.c
index f68fcac553c..39bbff1398a 100644
--- a/readline/readline/input.c
+++ b/readline/readline/input.c
@@ -21,6 +21,13 @@
 
 #define READLINE_LIBRARY
 
+#if defined (__MINGW32__)
+/* These are needed to get the declaration of 'alarm' when including
+   <unistd.h>.  */
+#define __USE_MINGW_ALARM
+#define _POSIX
+#endif
+
 #if defined (__TANDEM)
 #  define _XOPEN_SOURCE_EXTENDED 1
 #  define _TANDEM_SOURCE 1
@@ -834,7 +841,7 @@ rl_getc (FILE *stream)
       /* We know at this point that _rl_caught_signal == 0 */
 
 #if defined (__MINGW32__)
-      if (isatty (fd)
+      if (isatty (fd))
 	return (_getch ());	/* "There is no error return." */
 #endif
       result = 0;
diff --git a/readline/readline/rlprivate.h b/readline/readline/rlprivate.h
index d87d07a72ee..cb9cf1791e2 100644
--- a/readline/readline/rlprivate.h
+++ b/readline/readline/rlprivate.h
@@ -303,7 +303,7 @@ extern int _rl_pushed_input_available (void);
 
 extern int _rl_timeout_init (void);
 extern int _rl_timeout_handle_sigalrm (void);
-#if defined (_POSIXSELECT_H_)
+#if defined (RL_TIMEOUT_USE_SELECT)
 /* use as a sentinel for fd_set, struct timeval,  and sigset_t definitions */
 extern int _rl_timeout_select (int, fd_set *, fd_set *, fd_set *, const struct timeval *, const sigset_t *);
 #endif