[Chicken-users] Sendfile Egg and Cairo Egg Problems on Cygwin

[Yasuro]

Hi!

I have just come to know Chicken and I have installed it on 
the Cygwin platform (compiling it by myself). I do not know 
the system well enough to provide any personal insight yet, 
but I would like to report a few problems.

1. Sendfile Egg

I get the following error:

downloading sendfile.egg from 
(www.call-with-current-continuation.org eggs/3 80)
  gzip -d -c 
/cygdrive/x/Tools/chicken-eggs/downloads/sendfile.egg | tar xf -
  /usr/local/bin/csc -feature compiling-extension -s -d0 
-O2 sendfile.scm sendfile-implementation.c
Warning: local assignment to unused variable 
`*sendfile:last-selected-implementation*' may be unintended
sendfile.c:1: warning: -fPIC ignored for target (all code is 
position independent)
sendfile-implementation.c:1: warning: -fPIC ignored for 
target (all code is position independent)
sendfile.o:sendfile.c:(.text+0x2ad6): undefined reference to 
`_madvise'
collect2: ld returned 1 exit status
*** Shell command terminated with exit status 1: gcc 
sendfile.o sendfile-implementation.o -o sendfile.so -shared 
-L/usr/local/bin  -Wl,-R/usr/local/bin -lchicken -lm
Error: shell invocation failed with non-zero return status
"/usr/local/bin/csc -feature compiling-extension -s -d0 -O2 
sendfile.scm sendfil...
256

2. Cairo Egg

I get the following error:

downloading cairo.egg from 
(www.call-with-current-continuation.org eggs/3 80)
  gzip -d -c 
/cygdrive/x/Tools/chicken-eggs/downloads/cairo.egg | tar xf -
  make extension
/bin/sh: pkg-config: command not found
/bin/sh: pkg-config: command not found
csc -C  -L  -s -o cairo.so cairo.scm
Microsoft (R) Visual C# 2005 Compiler version 8.00.50727.1433
for Microsoft (R) Windows (R) 2005 Framework version 2.0.50727
Copyright (C) Microsoft Corporation 2001-2005. All rights 
reserved.

fatal error CS2007: Unrecognized option: '-C'
make: *** [cairo.so] Error 1
Error: shell invocation failed with non-zero return status
"make extension"
512