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| -rw-r--r-- | configure.in | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 73dc78888f..b93005648e 100644 --- a/configure.in +++ b/configure.in @@ -158,6 +158,12 @@ if test "$ac_cv_c_const" = "yes" ; then LEX_CFLAGS="-DYY_USE_CONST" fi +AC_MSG_CHECKING([flex version]) +set `$LEX -V | grep 'version' | cut -d ' ' -f 3 | sed -e 's/\./ /g' | sed -e 's/[^0-9 ]//g'` +if test "${1}" != "2" -o "${2}" != "5" -o "${3}" -lt "4"; then + AC_MSG_WARN(You will need flex 2.5.4 or later if you want to regenerate Zend/PHP lexical parsers.) +fi +AC_MSG_RESULT(${1}.${2}.${3} (ok)) dnl Platform-specific compile settings. dnl ------------------------------------------------------------------------- |