Import readline 8.0

This imports readline 8.0.

readline/ChangeLog.gdb
2019-08-12  Tom Tromey  <tom@tromey.com>

	* Imported readline 8.0.

8 files changed, 101 insertions, 6 deletions

diff --git a/readline/examples/Makefile.in b/readline/examples/Makefile.in
index 5094c6c..4a7c39e 100644
--- a/readline/examples/Makefile.in
+++ b/readline/examples/Makefile.in
@@ -53,8 +53,12 @@ CPPFLAGS = @CPPFLAGS@
 
 INCLUDES = -I$(srcdir) -I$(top_srcdir) -I..
 
-CCFLAGS  = $(DEFS) $(LOCAL_CFLAGS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)
-LDFLAGS = -g -L.. @LDFLAGS@
+CCFLAGS  = $(ASAN_CFLAGS) $(DEFS) $(LOCAL_CFLAGS) $(INCLUDES) $(CPPFLAGS) \
+	$(CFLAGS)
+LDFLAGS = -g -L.. @LDFLAGS@ $(ASAN_LDFLAGS)
+
+ASAN_XCFLAGS = -fsanitize=address -fno-omit-frame-pointer
+ASAN_XLDFLAGS = -fsanitize=address
 
 READLINE_LIB = ../libreadline.a
 HISTORY_LIB = ../libhistory.a
@@ -67,15 +71,18 @@ TERMCAP_LIB = @TERMCAP_LIB@
 
 SOURCES = excallback.c fileman.c histexamp.c manexamp.c rl-fgets.c rl.c \
 		rlbasic.c rlcat.c rlevent.c rlptytest.c rltest.c rlversion.c \
-		rl-callbacktest.c hist_erasedups.c hist_purgecmd.c 
+		rltest2.c rl-callbacktest.c hist_erasedups.c hist_purgecmd.c \
+		rlkeymaps.c
 
 EXECUTABLES = fileman$(EXEEXT) rltest$(EXEEXT) rl$(EXEEXT) rlcat$(EXEEXT) \
 		rlevent$(EXEEXT) rlversion$(EXEEXT) histexamp$(EXEEXT) \
 		rl-callbacktest$(EXEEXT) rlbasic$(EXEEXT) \
-		hist_erasedups$(EXEEXT) hist_purgecmd$(EXEEXT)
+		hist_erasedups$(EXEEXT) hist_purgecmd$(EXEEXT) \
+		rlkeymaps$(EXEEXT)
 
 OBJECTS = fileman.o rltest.o rl.o rlevent.o rlcat.o rlversion.o histexamp.o \
-	  rl-callbacktest.o rlbasic.o hist_erasedups.o hist_purgecmd.o
+	  rltest2.o rl-callbacktest.o rlbasic.o hist_erasedups.o hist_purgecmd.o \
+	  rlkeymaps.o
 
 OTHEREXE = rlptytest$(EXEEXT)
 OTHEROBJ = rlptytest.o
@@ -83,6 +90,9 @@ OTHEROBJ = rlptytest.o
 all: $(EXECUTABLES)
 everything: all
 
+asan:
+	${MAKE} ${MFLAGS} ASAN_CFLAGS='${ASAN_XCFLAGS}' ASAN_LDFLAGS='${ASAN_XLDFLAGS}' all
+
 check:	rlversion$(EXEEXT)
 	@echo Readline version: `rlversion$(EXEEXT)`
 
@@ -113,12 +123,18 @@ rlcat$(EXEEXT): rlcat.o $(READLINE_LIB)
 rlevent$(EXEEXT): rlevent.o $(READLINE_LIB)
 	$(CC) $(LDFLAGS) -o $@ rlevent.o $(READLINE_LIB) $(TERMCAP_LIB)
 
+rlkeymaps$(EXEEXT): rlkeymaps.o $(READLINE_LIB)
+	$(CC) $(LDFLAGS) -o $@ rlkeymaps.o $(READLINE_LIB) $(TERMCAP_LIB)
+
 fileman$(EXEEXT): fileman.o $(READLINE_LIB)
 	$(CC) $(LDFLAGS) -o $@ fileman.o $(READLINE_LIB) $(TERMCAP_LIB)
 
 rltest$(EXEEXT): rltest.o $(READLINE_LIB)
 	$(CC) $(LDFLAGS) -o $@ rltest.o $(READLINE_LIB) $(TERMCAP_LIB)
 
+rltest2$(EXEEXT): rltest2.o $(READLINE_LIB)
+	$(CC) $(LDFLAGS) -o $@ rltest2.o $(READLINE_LIB) $(TERMCAP_LIB)
+
 rl-callbacktest$(EXEEXT): rl-callbacktest.o $(READLINE_LIB)
 	$(CC) $(LDFLAGS) -o $@ rl-callbacktest.o $(READLINE_LIB) $(TERMCAP_LIB)
 
@@ -146,18 +162,21 @@ distclean maintainer-clean: clean
 
 fileman.o: fileman.c
 rltest.o: rltest.c
+rltest2.o: rltest2.c
 rl.o: rl.c
 rlversion.o: rlversion.c
 histexamp.o: histexamp.c
 hist_erasedups.o: hist_erasedups.c
 hist_purgecmd.o: hist_purgecmd.c
 rlbasic.o: rlbasic.c
+rlkeymaps.o: rlkeymaps.c
 rlcat.o: rlcat.c
 rlptytest.o: rlptytest.c
 rl-callbacktest.o: rl-callbacktest.c
 
 fileman.o: $(top_srcdir)/readline.h
 rltest.o: $(top_srcdir)/readline.h
+rltest2.o: $(top_srcdir)/readline.h $(top_srcdir)/history.h
 rl.o: $(top_srcdir)/readline.h
 rlversion.o: $(top_srcdir)/readline.h
 histexamp.o: $(top_srcdir)/history.h
diff --git a/readline/examples/hist_erasedups.c b/readline/examples/hist_erasedups.c
index 2ecee89..f820eba 100644
--- a/readline/examples/hist_erasedups.c
+++ b/readline/examples/hist_erasedups.c
@@ -38,6 +38,8 @@
 #define STREQN(a, b, n) ((n == 0) ? (1) \
                                   : ((a)[0] == (b)[0] && strncmp(a, b, n) == 0))
 
+int hist_erasedups (void);
+
 static void
 usage()
 {
diff --git a/readline/examples/hist_purgecmd.c b/readline/examples/hist_purgecmd.c
index d836d14..7992d81 100644
--- a/readline/examples/hist_purgecmd.c
+++ b/readline/examples/hist_purgecmd.c
@@ -43,6 +43,8 @@
 
 #define PURGE_REGEXP	0x01
 
+int hist_purgecmd (char *, int);
+
 static void
 usage()
 {
diff --git a/readline/examples/histexamp.c b/readline/examples/histexamp.c
index 3b43674..309d769 100644
--- a/readline/examples/histexamp.c
+++ b/readline/examples/histexamp.c
@@ -27,8 +27,11 @@
 #  include <readline/history.h>
 #endif
 
+#include <unistd.h>
+#include <stdlib.h>
 #include <string.h>
 
+int
 main (argc, argv)
      int argc;
      char **argv;
diff --git a/readline/examples/rlcat.c b/readline/examples/rlcat.c
index fa9e06f..b494241 100644
--- a/readline/examples/rlcat.c
+++ b/readline/examples/rlcat.c
@@ -137,7 +137,7 @@ fcopy(fp)
       if (vflag && isascii ((unsigned char)c) && isprint((unsigned char)c) == 0)
 	{
 	  x = rl_untranslate_keyseq (c);
-	  if (fputs (x, stdout) != 0)
+	  if (fputs (x, stdout) == EOF)
 	    return 1;
 	}
       else if (putchar (c) == EOF)
diff --git a/readline/examples/rlevent.c b/readline/examples/rlevent.c
index 77f1887..8143cb0 100644
--- a/readline/examples/rlevent.c
+++ b/readline/examples/rlevent.c
@@ -28,6 +28,13 @@
 #  include <config.h>
 #endif
 
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#else
+extern int getopt();
+extern int sleep();
+#endif
+
 #include <stdio.h>
 #include <sys/types.h>
 
diff --git a/readline/examples/rlkeymaps.c b/readline/examples/rlkeymaps.c
new file mode 100644
index 0000000..fef77b3
--- /dev/null
+++ b/readline/examples/rlkeymaps.c
@@ -0,0 +1,61 @@
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined (READLINE_LIBRARY)
+#  include "readline.h"
+#  include "history.h"
+#else
+#  include <readline/readline.h>
+#  include <readline/history.h>
+#endif
+
+int
+main (int c, char **v)
+{
+  Keymap nmap, emacsmap, newemacs;
+  int r, errs;
+
+  errs = 0;
+  nmap = rl_make_keymap ();
+
+  r = rl_set_keymap_name ("emacs", nmap);
+  if (r >= 0)
+    {
+      fprintf (stderr, "rlkeymaps: error: able to rename `emacs' keymap\n");
+      errs++;
+    }
+
+  emacsmap = rl_get_keymap_by_name ("emacs");
+  r = rl_set_keymap_name ("newemacs", emacsmap);
+  if (r >= 0)
+    {
+      fprintf (stderr, "rlkeymaps: error: able to set new name for emacs keymap\n");
+      errs++;
+    }
+
+  r = rl_set_keymap_name ("newemacs", nmap);
+  if (r < 0)
+    {
+      fprintf (stderr, "rlkeymaps: error: newemacs: could not set keymap name\n");
+      errs++;
+    }
+
+  newemacs = rl_copy_keymap (emacsmap);
+  r = rl_set_keymap_name ("newemacs", newemacs);
+  if (r < 0)
+    {
+      fprintf (stderr, "rlkeymaps: error: newemacs: could not set `newemacs' keymap to new map\n");
+      errs++;
+    }
+
+  r = rl_set_keymap_name ("emacscopy", newemacs);
+  if (r < 0)
+    {
+      fprintf (stderr, "rlkeymaps: error: emacscopy: could not rename created keymap\n");
+      errs++;
+    }
+
+  exit (errs);
+}
diff --git a/readline/examples/rltest.c b/readline/examples/rltest.c
index 78e2608..65abe87 100644
--- a/readline/examples/rltest.c
+++ b/readline/examples/rltest.c
@@ -46,6 +46,7 @@ extern void exit();
 
 extern HIST_ENTRY **history_list ();
 
+int
 main ()
 {
   char *temp, *prompt;