[Boost-users] program_options library and mingw

From: Thomas Porschberg (thomas.porschberg_at_[hidden])
Date: 2005-11-09 08:59:48

Hi,
I try to use the program_options library in a cygwin environment
by compiling my application with the -mno-cygwin -mwindows 
compiler flag.
This flag should lead to a pure windows application. 
I have boost libraries version 1.33 installed(via http://cygwin.com/).
I link my application against libboost_program_options-gcc-mt-s
which is sufficient under Linux.
However under cygwin I get an 
undefined reference to `_environ' 
linker error.

I did nm /usr/lib/libc.a | grep _environ
and got
00000004 B _environ
00000000 I __imp____cygwin_environ
00000000 I __nm____cygwin_environ

(but my build environment[GNU Builds tools] seems to ignore the
-lc flag at the linker option line)

Has someone experience with this library under cygwin/mingw ?

Thomas

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