Remove --disable-gdbcli

I think it doesn't really make sense to allow building gdb without the
CLI.  Perhaps at one time this was a goal, but libgdb is long gone and
the CLI is intrinsic to gdb.

So, this patch removes the implementation of this configure option.
It is still recognized (this is autoconf's default), but does nothing.

This simplifies configure.ac and Makefile.in a bit.

Tested by rebuilding.

gdb/ChangeLog
2018-07-17  Tom Tromey  <tom@tromey.com>

	* configure.ac: Remove --disable-gdbcli.
	* configure: Rebuild.
	* Makefile.in (SUBDIR_CLI_DEPS, SUBDIR_CLI_LDFLAGS)
	(SUBDIR_CLI_CFLAGS): Remove.
	(SFILES): Use SUBDIR_CLI_SRCS.
	(COMMON_OBS): Use SUBDIR_CLI_OBS.

5 files changed, 15 insertions, 56 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 01c1a25..6f5487c 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,14 @@
 2018-07-17  Tom Tromey  <tom@tromey.com>
 
+	* configure.ac: Remove --disable-gdbcli.
+	* configure: Rebuild.
+	* Makefile.in (SUBDIR_CLI_DEPS, SUBDIR_CLI_LDFLAGS)
+	(SUBDIR_CLI_CFLAGS): Remove.
+	(SFILES): Use SUBDIR_CLI_SRCS.
+	(COMMON_OBS): Use SUBDIR_CLI_OBS.
+
+2018-07-17  Tom Tromey  <tom@tromey.com>
+
 	PR gdb/18624:
 	* coffread.c (coff_symtab_read): Use scoped_free_pendings.
 
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index b145e51..e68aee2 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -253,10 +253,6 @@ SUBDIR_CLI_SRCS = \
 
 SUBDIR_CLI_OBS = $(patsubst %.c,%.o,$(SUBDIR_CLI_SRCS))
 
-SUBDIR_CLI_DEPS =
-SUBDIR_CLI_LDFLAGS =
-SUBDIR_CLI_CFLAGS =
-
 #
 # MI sub directory definitons
 #
@@ -1160,6 +1156,7 @@ SFILES = \
 	symfile-mem.c \
 	ui-file.h \
 	mi/mi-common.c \
+	$(SUBDIR_CLI_SRCS) \
 	$(SUBDIR_TARGET_SRCS) \
 	$(COMMON_SFILES) \
 	$(SUBDIR_GCC_COMPILE_SRCS)
@@ -1557,6 +1554,7 @@ COMMON_OBS = $(DEPFILES) $(CONFIG_OBS) $(YYOBJ) \
 	version.o \
 	xml-builtin.o \
 	$(patsubst %.c,%.o,$(COMMON_SFILES)) \
+	$(SUBDIR_CLI_OBS) \
 	$(SUBDIR_TARGET_OBS) \
 	$(SUBDIR_GCC_COMPILE_OBS)
 
diff --git a/gdb/NEWS b/gdb/NEWS
index 2b51465..76b963e 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -130,13 +130,16 @@ SH-5/SH64 running OpenBSD 	SH-5/SH64 support in sh*-*-openbsd*
   the tradeoff that there is a possibility of false hits being
   reported.
 
-* New configure options
+* Configure changes
 
 --enable-codesign=CERT
   This can be used to invoke "codesign -s CERT" after building gdb.
   This option is useful on macOS, where code signing is required for
   gdb to work properly.
 
+--disable-gdbcli has been removed
+  This is now silently accepted, but does nothing.
+
 *** Changes in GDB 8.1
 
 * GDB now supports dynamically creating arbitrary register groups specified
diff --git a/gdb/configure b/gdb/configure
index 28756ed..3f0a220 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -855,7 +855,6 @@ with_auto_load_dir
 with_auto_load_safe_path
 enable_targets
 enable_64_bit_bfd
-enable_gdbcli
 enable_gdbmi
 enable_tui
 enable_gdbtk
@@ -1547,7 +1546,6 @@ Optional Features:
   --enable-targets=TARGETS
                           alternative target configurations
   --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)
-  --disable-gdbcli        disable command-line interface (CLI)
   --disable-gdbmi         disable machine-interface (MI)
   --enable-tui            enable full-screen terminal user interface (TUI)
   --enable-gdbtk          enable gdbtk graphical user interface (GUI)
@@ -6755,32 +6753,6 @@ _ACEOF
 
 fi
 
-# The CLI cannot be disabled yet, but may be in the future.
-
-# Enable CLI.
-# Check whether --enable-gdbcli was given.
-if test "${enable_gdbcli+set}" = set; then :
-  enableval=$enable_gdbcli; case $enableval in
-    yes)
-      ;;
-    no)
-      as_fn_error $? "the command-line interface cannot be disabled yet" "$LINENO" 5 ;;
-    *)
-      as_fn_error $? "bad value $enableval for --enable-gdbcli" "$LINENO" 5 ;;
-  esac
-else
-  enable_gdbcli=yes
-fi
-
-if test x"$enable_gdbcli" = xyes; then
-  if test -d $srcdir/cli; then
-    CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
-    CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
-    CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
-    ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
-  fi
-fi
-
 # Enable MI.
 # Check whether --enable-gdbmi was given.
 if test "${enable_gdbmi+set}" = set; then :
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 4c20ea5..dfd38a7 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -299,29 +299,6 @@ if test "x$targ_defvec" != x; then
     [Define to BFD's default target vector. ])
 fi
 
-# The CLI cannot be disabled yet, but may be in the future.
-
-# Enable CLI.
-AC_ARG_ENABLE(gdbcli,
-AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
-  [case $enableval in
-    yes)
-      ;;
-    no)
-      AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
-    *)
-      AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
-  esac],
-  [enable_gdbcli=yes])
-if test x"$enable_gdbcli" = xyes; then
-  if test -d $srcdir/cli; then
-    CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
-    CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
-    CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
-    ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
-  fi
-fi
-
 # Enable MI.
 AC_ARG_ENABLE(gdbmi,
 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),