diff options
Diffstat (limited to 'regen_perly.pl')
| -rw-r--r-- | regen_perly.pl | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/regen_perly.pl b/regen_perly.pl index 7907c20a58..b96275639c 100644 --- a/regen_perly.pl +++ b/regen_perly.pl @@ -73,16 +73,21 @@ unless ($version) { die <<EOF; } Could not find a version of bison in your path. Please install bison. EOF +# Don't change this to add new bison versions without testing that the generated +# files actually work :-) Win32 in particular may not like them. :-( unless ($version =~ /\b(1\.875[a-z]?|2\.[0134567])\b/) { die <<EOF; } You have the wrong version of bison in your path; currently 1.875 -2.0, 2.1, 2.3-2.7 is required. Try installing - http://ftp.gnu.org/gnu/bison/bison-2.7.tar.gz +2.0, 2.1, 2.3, 2.4, 2.5, 2.6 or 2.7 is required. Try installing + http://ftp.gnu.org/gnu/bison/bison-2.5.1.tar.gz or similar. Your bison identifies itself as: $version EOF +# bison's version number, not the entire string, is most useful later on. +$version = $1; + # creates $tmpc_file and $tmph_file my_system("$bison -d -o $tmpc_file $y_file"); @@ -116,7 +121,7 @@ open my $tmph_fh, '<', $tmph_file or die "Can't open $tmph_file: $!\n"; my $endcore_done = 0; # Token macros need to be generated manually from bison 2.4 on -my $gather_tokens = ($version =~ /\b2\.[456]\b/ ? undef : 0); +my $gather_tokens = $version >= 2.4 ? undef : 0; my $tokens; while (<$tmph_fh>) { # bison 2.6 adds header guards, which break things because of where we |