diff options
Diffstat (limited to 'wiretap/configure.in')
| -rw-r--r-- | wiretap/configure.in | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/wiretap/configure.in b/wiretap/configure.in index d3afcd9794..734a90c43e 100644 --- a/wiretap/configure.in +++ b/wiretap/configure.in @@ -20,8 +20,20 @@ AM_PROG_LEX AC_PROG_LIBTOOL AC_PATH_PROG(LEX, flex) -AC_SUBST(FLEX_PATH) - +# +# Check whether Flex supports -R, so we can build reentrant scanners. +# +AC_MSG_CHECKING(whether Flex can generate reentrant scanners) +if flex -R -t <<EOF >/dev/null 2>&1 +%% +%% +EOF +then + AC_MSG_RESULT(yes) + AC_DEFINE(FLEX_REENTRANT_SCANNERS, 1, [Define if Flex can generate reentrant scanners]) +else + AC_MSG_RESULT(no) +fi # # Try to add some additional gcc checks to CFLAGS |