From: WATANABE Hirofumi <eban@...>
Date: 2003-01-28T12:54:23+09:00
Subject: Re: "undefined ref to 'flock'" when compiling 1.8 under cygwin

Hi,

coma_killen@fastmail.fm <coma_killen@fastmail.fm> writes:

> gcc -mno-cygwin -g -O2    main.o dmyext.o libmsvcrt-ruby18-static.a
> -lwsock32
> -o miniruby.exe
> libmsvcrt-ruby18-static.a(numeric.o): In function `flo_to_s':
> /tmp/ruby/numeric.c:280: undefined reference to `__fpclassify'
> libmsvcrt-ruby18-static.a(numeric.o): In function `flo_is_infinite_p':
> /tmp/ruby/numeric.c:731: undefined reference to `__fpclassify'
> libmsvcrt-ruby18-static.a(numeric.o): In function `flo_is_finite_p':
> /tmp/ruby/numeric.c:744: undefined reference to `__fpclassify'
> libmsvcrt-ruby18-static.a(bignum.o): In function `dbl2big':
> /tmp/ruby/bignum.c:786: undefined reference to `__fpclassify'
> libmsvcrt-ruby18-static.a(bignum.o): In function `rb_big2dbl':
> /tmp/ruby/bignum.c:827: undefined reference to `__fpclassify'
> libmsvcrt-ruby18-static.a(marshal.o):/tmp/ruby/marshal.c:198: more
> undefined ref
> erences to `__fpclassify' follow
> collect2: ld returned 1 exit status
> make: *** [miniruby.exe] Error 1
> 
> Any ideas?

I think that your gcc is old.  It has not taken adjustment
with the mingw-runtime.  I suggest you upgrade to the latest
version of the gcc package.

-- 
eban