118 lines
3.4 KiB
Diff
118 lines
3.4 KiB
Diff
gdb/
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2009-07-31 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix compatibility of --with-system-readline and readline-6.0+.
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* configure.ac <--with-system-readline> (for readline_echoing_p): New
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test.
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* config.in: Regenerate.
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* configure: Regenerate.
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--- a/gdb/configure.ac
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+++ b/gdb/configure.ac
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@@ -536,6 +536,21 @@ if test "$with_system_readline" = yes; then
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READLINE=-lreadline
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READLINE_DEPS=
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READLINE_CFLAGS=
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+
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+ # readline-6.0 started to use the name `_rl_echoing_p'.
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+ # `$(READLINE_DIR)/' of bundled readline would not resolve in configure.
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+
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+ AC_MSG_CHECKING([for readline_echoing_p])
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+ save_LIBS=$LIBS
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+ LIBS="$LIBS $READLINE"
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+ AC_LINK_IFELSE(AC_LANG_PROGRAM(,[[extern int readline_echoing_p;
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+ return readline_echoing_p;]]),
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+ [READLINE_ECHOING_P=yes],
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+ [READLINE_ECHOING_P=no
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+ AC_DEFINE([readline_echoing_p], [_rl_echoing_p],
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+ [readline-6.0 started to use different name.])])
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+ LIBS="$save_LIBS"
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+ AC_MSG_RESULT([$READLINE_ECHOING_P])
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else
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READLINE='$(READLINE_DIR)/libreadline.a'
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READLINE_DEPS='$(READLINE)'
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--- a/gdb/config.in
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+++ b/gdb/config.in
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@@ -790,6 +790,9 @@
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/* Define to `int' if <sys/types.h> does not define. */
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#undef pid_t
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+/* readline-6.0 started to use different name. */
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+#undef readline_echoing_p
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+
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/* Define to the equivalent of the C99 'restrict' keyword, or to
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nothing if this is not supported. Do not define if restrict is
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supported directly. */
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--- a/gdb/configure
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+++ b/gdb/configure
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@@ -10763,6 +10763,69 @@ if test "$with_system_readline" = yes; then
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READLINE=-lreadline
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READLINE_DEPS=
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READLINE_CFLAGS=
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+
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+ # readline-6.0 started to use the name `_rl_echoing_p'.
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+ # `$(READLINE_DIR)/' of bundled readline would not resolve in configure.
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+
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+ echo "$as_me:$LINENO: checking for readline_echoing_p" >&5
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+echo $ECHO_N "checking for readline_echoing_p... $ECHO_C" >&6
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+ save_LIBS=$LIBS
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+ LIBS="$LIBS $READLINE"
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+ cat >conftest.$ac_ext <<_ACEOF
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+/* confdefs.h. */
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+_ACEOF
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+cat confdefs.h >>conftest.$ac_ext
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+cat >>conftest.$ac_ext <<_ACEOF
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+/* end confdefs.h. */
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+
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+int
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+main ()
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+{
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+extern int readline_echoing_p;
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+ return readline_echoing_p;
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+ ;
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+ return 0;
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+}
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+_ACEOF
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+rm -f conftest.$ac_objext conftest$ac_exeext
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+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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+ (eval $ac_link) 2>conftest.er1
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+ ac_status=$?
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+ grep -v '^ *+' conftest.er1 >conftest.err
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+ rm -f conftest.er1
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+ cat conftest.err >&5
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); } &&
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+ { ac_try='test -z "$ac_c_werror_flag"
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+ || test ! -s conftest.err'
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+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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+ (eval $ac_try) 2>&5
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+ ac_status=$?
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); }; } &&
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+ { ac_try='test -s conftest$ac_exeext'
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+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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+ (eval $ac_try) 2>&5
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+ ac_status=$?
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); }; }; then
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+ READLINE_ECHOING_P=yes
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+else
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+ echo "$as_me: failed program was:" >&5
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+sed 's/^/| /' conftest.$ac_ext >&5
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+
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+READLINE_ECHOING_P=no
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+
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+cat >>confdefs.h <<\_ACEOF
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+#define readline_echoing_p _rl_echoing_p
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+_ACEOF
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+
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+fi
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+rm -f conftest.err conftest.$ac_objext \
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+ conftest$ac_exeext conftest.$ac_ext
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+ LIBS="$save_LIBS"
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+ echo "$as_me:$LINENO: result: $READLINE_ECHOING_P" >&5
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+echo "${ECHO_T}$READLINE_ECHOING_P" >&6
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else
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READLINE='$(READLINE_DIR)/libreadline.a'
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READLINE_DEPS='$(READLINE)'
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