Igor2 wrote:
Hi Dan,
Today I made more experiments, installing and removing bison and flex. The
bug which I could reproduce:
1. run ./configure without having bison/flex, at the end it will say
everything was fine (altough it detects missing yacc and lex);
2. run make and find out that you don't have yacc
3. install yacc and lex
4. run make again
5. ylwrap will fail silently
However if bison and flex are installed before I run ./configure,
everything works.
ah. This makes sense now. In general if ./configure fails to find
something and you then install that something, you have to install
./configure again.
For me it seems that missing yacc is not critical for ./configure while it
should be: maybe the 'expected' behaviour should be that configure fails
on missing yacc/lex the same way as it fails for missing libs.
I checked in a change last night so the configure script should fail
with an error in the event that either yacc or lex are not found.
Hopefully that will address your problems. I don't quite understand why
AC_PROG_LEX and AC_PROG_YACC didn't already do this.
-Dan
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