1 This document is obsolete. Refer to README.cygwin32.
3 This is an addendum to Steven Morlock's original post.
4 perl5.005_03-static-patch, contains the USEMYBINMODE correction described
7 *****************************
8 Subject: Re: HOWTO: Builiding Perl under Win95/98 using Cygwin32
9 Author: Steven Morlock <newspost@morlock.net>
11 Forum: comp.lang.perl.misc
13 I realized that in my original post I left out a couple important
14 details. I'd like to correct that here.
16 There is a need to address the issue of end of lines being CR/NL or
17 NL on the Windows platform. Cygwin32 by default converts NL to CR/NL
18 during file I/O by non Cygwin32-savvy applications. This means that
19 Perl, since it does not support 'binmode' for the Cygwin32 platform,
20 will not be able to read & write untranslated/binary files. There are
21 two methods of over coming this. The first is to mount the Cygwin32
22 partitions in binary mode. The second is to enable binmode support
23 in Perl. In the original post I had mounted the partition as binary
24 and neglected to include that fact in the post.
26 * Using a binary partition:
28 Mount the Perl source & installation destination partitions in binary
29 mode. Refer to the Cygnus documentation on 'mount' for details:
31 http://sourceware.cygnus.com/cygwin/cygwin-ug-net/mount.html
33 On my system since everything was in the root partition I issued the
34 following commands from the bash shell:
39 You must also get and install the gzip'd version of the Perl source
40 code archive. The zip'd version of the archive has all NL converted
41 to CR/NL pairs in all text files. So you should be downloading the
42 files ending in '.gz', not '.zip'.
44 * Patching Perl to add Cygwin32 binmode support:
46 For this method you can use either the gzip'd or zip'd version of the
49 Apply the following patch to <PERL>/perl.h:
51 *** perl.h.ORIG Tue Dec 22 09:22:42 1998
52 --- perl.h Tue Dec 22 09:43:10 1998
58 + #if defined(__CYGWIN32__)
60 + * This symbol, if defined, indicates that the program should
61 + * use the routine my_binmode(FILE *fp, char iotype) to insure
62 + * that a file is in "binary" mode -- that is, that no translation
63 + * of bytes occurs on read or write operations.
65 + #define USEMYBINMODE / **/
66 + #define my_binmode(fp, iotype) \
67 + (PerlLIO_setmode(PerlIO_fileno(fp), O_BINARY) != -1 ?
79 Foliage Software Systems
81 http://www.foliage.com