diff options
| -rw-r--r-- | configure.in | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in index a8b451ddb8..08d7d4984d 100644 --- a/configure.in +++ b/configure.in @@ -159,7 +159,7 @@ if test "$ac_cv_c_const" = "yes" ; then fi AC_MSG_CHECKING([flex version]) -set `$LEX -V | grep 'version' | cut -d ' ' -f 3 | sed -e 's/\./ /g' | sed -e 's/[^0-9 ]//g'` +set `echo "" | $LEX -V -v --version 2>/dev/null | grep 'version' | cut -d ' ' -f 3 | sed -e 's/\./ /g' | sed -e 's/[^0-9 ]//g'` if test "${1}" != "2" -o "${2}" != "5" -o "${3}" -lt "4"; then AC_MSG_WARN(You will need flex 2.5.4 or later if you want to regenerate Zend/PHP lexical parsers.) fi |