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| author | Chris Dyer <cdyer@cs.cmu.edu> | 2011-03-23 23:00:32 -0400 |
|---|---|---|
| committer | Chris Dyer <cdyer@cs.cmu.edu> | 2011-03-23 23:00:32 -0400 |
| commit | 972c40c819bb1e6ea8c78eb2e067f014713adf86 (patch) | |
| tree | 5865c70e76333333ce4fcff2e2f4f20518c4839e | |
| parent | e03a6c2b2e3cc21d75904300d34249cd1e2e032b (diff) | |
fail if no lex program is found (i think)
| -rw-r--r-- | configure.ac | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 56f08147..b323576f 100644 --- a/configure.ac +++ b/configure.ac @@ -3,6 +3,9 @@ AM_INIT_AUTOMAKE(cdec,0.1) AC_CONFIG_HEADERS(config.h) AC_PROG_LIBTOOL AC_PROG_LEX +case $LEX in +:) AC_MSG_ERROR([No lex (Flex, lex, etc.) program found]);; +esac AC_PROG_CC AC_PROG_CXX AC_LANG_CPLUSPLUS |