[PATCH] configure.ac: fix typo in error diagnostics

[Dmitry V. Levin]

Fixes: da855fc9c ("Support building when fts and obstack aren't part of libc")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 ChangeLog    | 4 ++++
 configure.ac | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 71e80a25..563af0d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-12-11  Dmitry V. Levin  <ldv@altlinux.org>
+
+	* configure.ac (AC_MSG_FAILURE): Fix typo.
+
 2020-11-30  Dmitry V. Levin  <ldv@altlinux.org>
 
 	* configure.ac (LIBDEBUGINFOD_SONAME): New AC_SUBST variable.
diff --git a/configure.ac b/configure.ac
index 2f7316e8..6c3e05bf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -559,7 +559,7 @@ saved_LIBS="$LIBS"
 AC_SEARCH_LIBS([_obstack_free], [obstack])
 LIBS="$saved_LIBS"
 case "$ac_cv_search__obstack_free" in
-        no) AC_MSG_FAILURE([failed to find obstack_free]) ;;
+        no) AC_MSG_FAILURE([failed to find _obstack_free]) ;;
         -l*) obstack_LIBS="$ac_cv_search__obstack_free" ;;
         *) obstack_LIBS= ;;
 esac
-- 
ldv