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Re: flex and dos source files. How is flex built for cygwin
On Nov 20, 2004, at 10:19 AM, Reini Urban wrote:
Peter Rehley schrieb:
I think so also because this isn't the behavior that occurs on linux or
On Nov 20, 2004, at 12:07 AM, Reini Urban wrote:
Peter Rehley schrieb:
Using these options the behavior of flex differs from the flex that
is shipped with cygwin.
Peter Rehley wrote:
Larry Hall wrote:
We have a customer that is using flex under a custom version of
cygwin that we provided them (with source). The customer is
having problems when their "*.l" files are in dos format. Flex
is taking the lines from the file and adding them into the
lex.yy.c file untouched. (i.e. they still have the \n\r at the
end), and this causing problems later on.
I tried using the version of flex that comes with the latest
version of cygwin (1.5.12) and flex changes the \n\r to just \n,
which makes everything work fine. Good I thought since the
version of flex we provide is not the latest. I'll just
But when I tried that with the latest flex (2.5.4a-3) I get the
same behavior that the customer is seeing. I get this behavior
even if I compile on the latest version of cygwin.
So, my question is what options are used for building flex?
there's no build script and an inactive maintainer. we don't know.
hopefully just the standard options.
./configure --prefix=/usr sharedstatedir=/var --mandir=/usr/share/man
make && make install
The filesystem has been mounted in binmode, but the flex that comes
with cygwin translates the files. Both flex and the text file are on
Linking against /usr/lib/binmode.o perhaps?
He meant that by accident flex was linked against binmode.o, which
is wrong. It was no advice to reproduce that error with linking
against binmode or textmount.
Tried on cygwin 1.5.12
but neither helped
for sure not.
However linking the /usr/lib/textmode.o did work
make LDFLAGS="/usr/lib/textmode.o" # <- did the job
Thanks Larry for pointing me in the right directory :)
Oh god. This was the right direction? Sorry no.
If you open your flex input file in a *textmode mount* \r\n will get
converted, if you open that in a binmode mount it will not get
$ man mount
ok thanks, for confirmation.
so cgf should repackage it. it's obviously a bug.
He is using automode.o, he said in one of the followups to this thread.
And please add a hint how to reproduce from source, so we don't have
to guess. Christofer claims that he didn't link against textmode.a,
but it looks like so, or there was some deeper magic behind, which
went away suddenly.
Hint should be included in original posting. It has original make
commands that I used plus a simple example for testing. It also has
instructions on how to build and run the simple sample
Modified build commands would be ./configure; make
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