Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fix #77805 phpdbg build fails when readline is shared

Author: krakjoe

NEWS

@@ -88,6 +88,7 @@ PHP                                                                        NEWS
   . Fixed bug #76801 (too many open files). (alekitto)
   . Fixed bug #77800 (phpdbg segfaults on listing some conditional breakpoints).
     (krakjoe)
+  . Fixed bug #77805 (phpdbg build fails when readline is shared). (krakjoe)
 
 - Sockets:
   . Fixed bug #67619 (Validate length on socket_write). (thiagooak)

sapi/phpdbg/config.m4

@@ -20,6 +20,9 @@ PHP_ARG_ENABLE([phpdbg-debug],
   [no],
   [no])
 
+PHP_ARG_ENABLE(phpdbg-readline, for phpdbg readline support,
+[  --enable-phpdbg-readline   Enable readline support in phpdbg (depends on static ext/readline)], yes, yes)
+
 if test "$BUILD_PHPDBG" = "" && test "$PHP_PHPDBG" != "no"; then
   AC_HEADER_TIOCGWINSZ
   AC_DEFINE(HAVE_PHPDBG, 1, [ ])
@@ -33,8 +36,17 @@ if test "$BUILD_PHPDBG" = "" && test "$PHP_PHPDBG" != "no"; then
   PHP_PHPDBG_CFLAGS="-D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1"
   PHP_PHPDBG_FILES="phpdbg.c phpdbg_parser.c phpdbg_lexer.c phpdbg_prompt.c phpdbg_help.c phpdbg_break.c phpdbg_print.c phpdbg_bp.c phpdbg_opcode.c phpdbg_list.c phpdbg_utils.c phpdbg_info.c phpdbg_cmd.c phpdbg_set.c phpdbg_frame.c phpdbg_watch.c phpdbg_btree.c phpdbg_sigsafe.c phpdbg_wait.c phpdbg_io.c phpdbg_eol.c phpdbg_out.c"
 
-  if test "$PHP_READLINE" != "no" -o  "$PHP_LIBEDIT" != "no"; then
-  	PHPDBG_EXTRA_LIBS="$PHP_READLINE_LIBS"
+  AC_MSG_CHECKING([for phpdbg and readline integration])
+  if test "$PHP_PHPDBG_READLINE" = "yes"; then
+    if test "$PHP_READLINE" != "no" -o  "$PHP_LIBEDIT" != "no"; then
+  	  AC_DEFINE(HAVE_PHPDBG_READLINE, 1, [ ])
+  	  PHPDBG_EXTRA_LIBS="$PHP_READLINE_LIBS"
+  	  AC_MSG_RESULT([ok])
+  	else
+  	  AC_MSG_RESULT([readline is not available])
+    fi
+  else
+    AC_MSG_RESULT([disabled])
   fi
 
   PHP_SUBST(PHP_PHPDBG_CFLAGS)

sapi/phpdbg/phpdbg.h

@@ -83,12 +83,14 @@
 #define zend_hash_str_add(...) zend_hash_str_add_tmp(__VA_ARGS__)
 #endif
 
-#ifdef HAVE_LIBREADLINE
-#	include <readline/readline.h>
-#	include <readline/history.h>
-#endif
-#ifdef HAVE_LIBEDIT
-#	include <editline/readline.h>
+#ifdef HAVE_PHPDBG_READLINE
+# ifdef HAVE_LIBREADLINE
+#	 include <readline/readline.h>
+#	 include <readline/history.h>
+# endif
+# ifdef HAVE_LIBEDIT
+#	 include <editline/readline.h>
+# endif
 #endif
 
 /* {{{ remote console headers */

sapi/phpdbg/phpdbg_cmd.c

@@ -751,20 +751,15 @@ PHPDBG_API char *phpdbg_read_input(char *buffered) /* {{{ */
 		}
 
 		if (buffered == NULL) {
-#if defined(HAVE_LIBREADLINE) || defined(HAVE_LIBEDIT)
-#define USE_LIB_STAR 1
-#else
-#define USE_LIB_STAR 0
-#endif
+#ifdef HAVE_PHPDBG_READLINE
 			/* note: EOF makes readline write prompt again in local console mode - and ignored if compiled without readline */
-#if USE_LIB_STAR
 			if ((PHPDBG_G(flags) & PHPDBG_IS_REMOTE) || !isatty(PHPDBG_G(io)[PHPDBG_STDIN].fd))
 #endif
 			{
 				phpdbg_write("prompt", "", "%s", phpdbg_get_prompt());
 				phpdbg_consume_stdin_line(cmd = buf);
 			}
-#if USE_LIB_STAR
+#ifdef HAVE_PHPDBG_READLINE
 			else {
 				cmd = readline(phpdbg_get_prompt());
 				PHPDBG_G(last_was_newline) = 1;
@@ -783,7 +778,7 @@ PHPDBG_API char *phpdbg_read_input(char *buffered) /* {{{ */
 
 		buffer = estrdup(cmd);
 
-#if USE_LIB_STAR
+#ifdef HAVE_PHPDBG_READLINE
 		if (!buffered && cmd &&	!(PHPDBG_G(flags) & PHPDBG_IS_REMOTE) && isatty(PHPDBG_G(io)[PHPDBG_STDIN].fd)) {
 			free(cmd);
 		}

sapi/phpdbg/phpdbg_prompt.c

@@ -1158,15 +1158,19 @@ PHPDBG_COMMAND(info) /* {{{ */
 {
 	phpdbg_out("Execution Context Information\n\n");
 	phpdbg_xml("<printinfo %r>");
-#ifdef HAVE_LIBREADLINE
-	phpdbg_writeln("info", "readline=\"yes\"", "Readline   yes");
+#ifdef HAVE_PHPDBG_READLINE
+# ifdef HAVE_LIBREADLINE
+	 phpdbg_writeln("info", "readline=\"yes\"", "Readline   yes");
+# else
+	 phpdbg_writeln("info", "readline=\"no\"", "Readline   no");
+# endif
+# ifdef HAVE_LIBEDIT
+	 phpdbg_writeln("info", "libedit=\"yes\"", "Libedit    yes");
+# else
+	 phpdbg_writeln("info", "libedit=\"no\"", "Libedit    no");
+# endif
 #else
-	phpdbg_writeln("info", "readline=\"no\"", "Readline   no");
-#endif
-#ifdef HAVE_LIBEDIT
-	phpdbg_writeln("info", "libedit=\"yes\"", "Libedit    yes");
-#else
-	phpdbg_writeln("info", "libedit=\"no\"", "Libedit    no");
+     phpdbg_writeln("info", "readline=\"unavailable\"", "Readline   unavailable");
 #endif
 
 	phpdbg_writeln("info", "context=\"%s\"", "Exec       %s", PHPDBG_G(exec) ? PHPDBG_G(exec) : "none");