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| author | Reid Spencer <rspencer@reidspencer.com> | 2006-08-24 22:41:20 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2006-08-24 22:41:20 +0000 |
| commit | 4869d7fa8e7daeaafc8b86c6f54efd41517f0f14 (patch) | |
| tree | 38c44c1b2be8bb1b6faa6c17cce81e1c6428e2d7 /autoconf/m4 | |
| parent | 7b7a1be8561c0cfda11b5ff287aa115cb1e68df5 (diff) | |
For PR738:
Demote check for bison from error to warning and make sure that the
makefile can handle an empty definition for BISON variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29861 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf/m4')
| -rw-r--r-- | autoconf/m4/bison.m4 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/autoconf/m4/bison.m4 b/autoconf/m4/bison.m4 index e186af0101..48b83cc4a6 100644 --- a/autoconf/m4/bison.m4 +++ b/autoconf/m4/bison.m4 @@ -8,7 +8,8 @@ AC_DEFUN([AC_PROG_BISON], [AC_CACHE_CHECK([],[llvm_cv_has_bison],[AC_PROG_YACC()]) if test "$YACC" != "bison -y"; then - AC_MSG_ERROR([bison not found but required]) + AC_SUBST(BISON,[]) + AC_MSG_WARN([bison not found, can't rebuild grammars]) else - AC_SUBST(BISON,[bison],[location of bison]) + AC_SUBST(BISON,[bison]) fi]) |