diff options
Diffstat (limited to 'config/programs.m4')
| -rw-r--r-- | config/programs.m4 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/config/programs.m4 b/config/programs.m4 index fd3a9a4791..76c0158973 100644 --- a/config/programs.m4 +++ b/config/programs.m4 @@ -23,6 +23,14 @@ if test "$BISON"; then *** Bison version 1.875 or later is required, but this is $pgac_bison_version.]) BISON="" fi + # Bison >=3.0 issues warnings about %name-prefix="base_yy", instead + # of the now preferred %name-prefix "base_yy", but the latter + # doesn't work with Bison 2.3 or less. So for now we silence the + # deprecation warnings. + if echo "$pgac_bison_version" | $AWK '{ if ([$]4 >= 3) exit 0; else exit 1;}' + then + BISONFLAGS="$BISONFLAGS -Wno-deprecated" + fi fi if test -z "$BISON"; then |