CYGWIN_NT-6.1-WOW64: Unable to install rubies with rvm

[Jon Seidel CMC]

When I try to compile a ruby (1.8.7 or 1.9.2) using rvm on cygwin, I get the
following errors. I can't find any similar issues either on the RVM list or
the cygwin list. As noted elsewhere on ruby-lang.org, I did try to install
1.8.7 first (1.9.2 requires ruby to already be installed). FWIW: I have
installed RVM and both these rubies on a Mac and that worked just fine.

I hope someone has run into this already and has a work-around/suggestion. 

Thanks...jon

============================Version 1.9.2 installation attempt
$ rvm install 1.9.2-head
/cygdrive/c/home/jes/.rvm/rubies/ruby-1.9.2-head, this may take a while
depending on your cpu(s)...

ruby-1.9.2-head - #fetching
Updating ruby from http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_2
Copying from repo to src path...
Running autoconf
ruby-1.9.2-head - #configuring
ruby-1.9.2-head - #compiling
Error running 'make ', please check
/cygdrive/c/home/jes/.rvm/log/ruby-1.9.2-head/make.error.log
There has been an error while running make. Halting the installation.
$ less /cygdrive/c/home/jes/.rvm/log/ruby-1.9.2-head/make.error.log
[2010-11-16 09:12:03] make
make: *** [miniprelude.c] Error 1


============================Version 1.8.7 installation attempt
$ rvm install 1.8.7-head
/cygdrive/c/home/jes/.rvm/rubies/ruby-1.8.7-head, this may take a while
depending on your cpu(s)...

ruby-1.9.2-head - #fetching
Updating ruby from http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8_7
Copying from repo to src path...
Running autoconf
ruby-1.8.7-head - #configuring
ruby-1.8.7-head - #compiling
Error running 'make ', please check
/cygdrive/c/home/jes/.rvm/log/ruby-1.8.7-head/make.error.log
There has been an error while running make. Halting the installation.
$less /cygdrive/c/home/jes/.rvm/log/ruby-1.8.7-head/make.error.log
[2010-11-16 09:37:58] make
eval.c:211: error: conflicting types for '_longjmp'
/usr/include/machine/setjmp.h:335: error: previous declaration of '_longjmp'
was here
eval.c:211: error: conflicting types for '_longjmp'
/usr/include/machine/setjmp.h:335: error: previous declaration of '_longjmp'
was here
eval.c: In function `rb_eval_string_wrap':
eval.c:1744: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_eval_cmd':
eval.c:1885: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `call_trace_func':
eval.c:2736: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_raise_jump':
eval.c:4770: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `method_missing':
eval.c:5736: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_call0':
eval.c:5894: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_f_eval':
eval.c:6696: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `exec_under':
eval.c:6720: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_load':
eval.c:7036: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `call_end_proc':
eval.c:8071: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `rb_f_END':
eval.c:8084: warning: assignment discards qualifiers from pointer target
type
eval.c: In function `mproc':
eval.c:9860: warning: assignment discards qualifiers from pointer target
type
make: *** [eval.o] Error 1

============================Some basic information...
$ uname
CYGWIN_NT-6.1-WOW64

$ rvm -v
rvm 1.0.21 by Wayne E. Seguin (wayneeseguin@gmail.com)
[http://rvm.beginrescueend.com/]

make, gcc, etc installed on cygwin from waterloo site


Jon Seidel, CMCR
EDP Consulting, Inc. / www.edpci.com / www.4mypasswords.com 
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