Re: Cygwin targetting mingw 32-bit

[Vibhu M. <vi...@ho...>]

This is a fix to some configure files to deal with Windows line endings.

Processor: Intel Xeon X5647, x64-based processor
System: Windows 10 64-bit, 6 GB RAM
(I haven't yet gotten access to Windows 32-bit, but plan to)
Cygwin (both 64-bit and 32-bit) targetting mingw 32-bit

I've got lisp.exe and lispinit.mem and am seeing what it'll take to get 
to having a base/ directory.
I'll discuss the failing make targets i18n, syscalls.

Notice the extraneous carriage returns in lines 9, 11 of the attached 
extract of build/syscalls/config.log . They come from 
modules/syscalls/configure near "cl_cv_clisp_version=...". Sed's second 
expression does nothing because sed's stdin has a carriage return 
between the double quote and line feed.

Changing the expression to allow an optional carriage return like this:
's/"\r\?$//'
solves the problem.

There are some other similar places in that same configure script, which 
I also changed in exactly the same way. See attached diff. Moreover, I 
believe all the scripts named modules/*/configure will need the same 
lines fixed. If these scripts are generated, then perhaps the generator 
can change instead.

Note: This problem doesn't occur when building a Cygwin binary, only a 
mingw binary. That makes sense. The Cygwin binary presumably prints Unix 
line-endings, for which the original sed expression works just fine.