Flatten GNU Make directory structure

third_party/make/output.h

@@ -0,0 +1,101 @@
+/* clang-format off */
+/* Output to stdout / stderr for GNU make
+Copyright (C) 2013-2020 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+struct output
+  {
+    int out;
+    int err;
+    unsigned int syncout:1;     /* True if we want to synchronize output.  */
+ };
+
+extern struct output *output_context;
+extern unsigned int stdio_traced;
+
+#define FD_STDIN  (fileno (stdin))
+#define FD_STDOUT (fileno (stdout))
+#define FD_STDERR (fileno (stderr))
+
+#define OUTPUT_SET(_new)    do{ output_context = (_new)->syncout ? (_new) : NULL; }while(0)
+#define OUTPUT_UNSET()      do{ output_context = NULL; }while(0)
+
+#define OUTPUT_TRACED()     do{ stdio_traced = 1; }while(0)
+#define OUTPUT_IS_TRACED()  (!!stdio_traced)
+
+/* Write a buffer directly to the given file descriptor.
+   This handles errors etc.  */
+int output_write (int fd, const void *buffer, size_t len);
+
+/* Initialize and close a child output structure: if NULL do this program's
+   output (this should only be done once).  */
+void output_init (struct output *out);
+void output_close (struct output *out);
+
+/* In situations where output may be about to be displayed but we're not
+   sure if we've set it up yet, call this.  */
+void output_start (void);
+
+/* Show a message on stdout or stderr.  Will start the output if needed.  */
+void outputs (int is_err, const char *msg);
+
+#ifdef NO_OUTPUT_SYNC
+# define RECORD_SYNC_MUTEX(m) \
+    O (error, NILF,                                                    \
+       _("-O[TYPE] (--output-sync[=TYPE]) is not configured for this build."));
+#else
+int output_tmpfd (void);
+/* Dump any child output content to stdout, and reset it.  */
+void output_dump (struct output *out);
+
+# ifdef WINDOWS32
+/* For emulations in w32/compat/posixfcn.c.  */
+#  define F_GETFD 1
+#  define F_SETLKW 2
+/* Implementation note: None of the values of l_type below can be zero
+   -- they are compared with a static instance of the struct, so zero
+   means unknown/invalid, see w32/compat/posixfcn.c. */
+#  define F_WRLCK 1
+#  define F_UNLCK 2
+
+struct flock
+  {
+    short l_type;
+    short l_whence;
+    off_t l_start;
+    off_t l_len;
+    pid_t l_pid;
+  };
+
+/* This type is actually a HANDLE, but we want to avoid including
+   windows.h as much as possible.  */
+typedef intptr_t sync_handle_t;
+
+/* Public functions emulated/provided in posixfcn.c.  */
+int fcntl (intptr_t fd, int cmd, ...);
+intptr_t create_mutex (void);
+int same_stream (FILE *f1, FILE *f2);
+
+#  define RECORD_SYNC_MUTEX(m) record_sync_mutex(m)
+void record_sync_mutex (const char *str);
+void prepare_mutex_handle_string (intptr_t hdl);
+# else  /* !WINDOWS32 */
+
+typedef int sync_handle_t;      /* file descriptor */
+
+#  define RECORD_SYNC_MUTEX(m) (void)(m)
+
+# endif
+#endif  /* !NO_OUTPUT_SYNC */