Log lex/flex detection errors in the config log

[openafs.git] / src / cf / flex.m4

diff --git a/src/cf/flex.m4 b/src/cf/flex.m4
index d552c18..6b2b172 100644 (file)
--- a/src/cf/flex.m4
+++ b/src/cf/flex.m4
@@ -1,7 +1,7 @@
 # OPENAFS_LEX_IS_FLEX([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE])
 AC_DEFUN([OPENAFS_LEX_IS_FLEX],
 [AC_MSG_CHECKING([if lex is flex])
- AS_IF([echo '' | $LEX --version >&AS_MESSAGE_LOG_FD],
+ AS_IF([echo '' | $LEX --version >&AS_MESSAGE_LOG_FD 2>&1],
     [AC_MSG_RESULT([yes])
      $1],
     [AC_MSG_RESULT([no])