[Boost-build] Unofficial library not seen by bjam only in Cygwin

Subject: [Boost-build] Unofficial library not seen by bjam only in Cygwin
From: NuSkooler (nuskooler_at_[hidden])
Date: 2010-11-03 19:13:25

Hello,

I have extracted a third party / unofficial library (Boost.Crypto) to
my boost directory. It is properly 'installed' to libs/crypto and
boost/crypto. Under MSW, bjam --show-libraries displays crypto as
expected and it can build just fine. Under Cygwin however, all
libraries but this are displayed. The libs/crypto/build/jamfile.v2 is
very vanilla:

lib boost_crypto
  :
    ../src/blowfish_cipher.cpp
    ../src/md4_ctx.cpp
    ../src/md5_ctx.cpp
    ../src/rc4_cipher.cpp
    ../src/rijndael_cipher.cpp
    ../src/ripemd_ctx.cpp
    ../src/sha1_ctx.cpp
    ../src/sha2_ctx.cpp
  ;

That's it. I put some ECHO out's in Jamroot in this loop: "for local l
in $(all-libraries)" (around line 236)

...crypto is not shown.

I need to get this working in order to use Boost.Crypto along with my
Android/NDK build of boost.

Any ideas?