Errors by installing "Polarssl 1.0.0" - And three questions

[Svenstream]

Hello,

at first:

1. I use this Version of MinGW:
http://sourceforge.net/projects/ming...t-20110530.exe
Because the newest version gives me a virus-alert!

2. I use this Version of Polarssl:
http://polarssl.org/code/releases/po...-1.0.0-gpl.tgz

3. I use this manual:
http://svnpenn.blogspot.com/2011/06/rtmpdump-mingw.html

I have changed the Polarssl-URL and the install runs
BUT ...
I have some errors in the install-log!!!
Here is the log:

Svenstream@Svenstream-PC ~/polarssl-1.0.0
$ make CC=gcc LDFLAGS="-L../library -lpolarssl -lws2_32"
  CC    aes.c
  CC    arc4.c
  CC    base64.c
  CC    bignum.c
  CC    camellia.c
  CC    certs.c
  CC    cipher.c
  CC    cipher_wrap.c
  CC    debug.c
  CC    des.c
  CC    dhm.c
  CC    havege.c
  CC    error.c
  CC    md.c
  CC    md_wrap.c
  CC    md2.c
  CC    md4.c
  CC    md5.c
  CC    net.c
net.c:40:0: warning: ignoring #pragma comment
  CC    padlock.c
  CC    pem.c
  CC    pkcs11.c
  CC    rsa.c
  CC    sha1.c
  CC    sha2.c
  CC    sha4.c
  CC    ssl_cli.c
  CC    ssl_srv.c
  CC    ssl_tls.c
  CC    timing.c
  CC    version.c
  CC    x509parse.c
  CC    xtea.c
  AR    libpolarssl.a
C:\MinGW\bin\ar.exe: creating libpolarssl.a
  RL    libpolarssl.a
  CC    aes/aescrypt2.c
  CC    aes/crypt_and_hash.c
  CC    hash/hello.c
  CC    hash/generic_sum.c
  CC    hash/md5sum.c
  CC    hash/sha1sum.c
  CC    hash/sha2sum.c
  CC    pkey/dh_client.c
  CC    pkey/dh_genprime.c
  CC    pkey/dh_server.c
  CC    pkey/key_app.c
  CC    pkey/mpi_demo.c
  CC    pkey/rsa_genkey.c
  CC    pkey/rsa_decrypt.c
  CC    pkey/rsa_encrypt.c
  CC    pkey/rsa_sign.c
  CC    pkey/rsa_verify.c
  CC    pkey/rsa_sign_pss.c
  CC    pkey/rsa_verify_pss.c
  CC    ssl/ssl_client1.c
  CC    ssl/ssl_client2.c
  CC    ssl/ssl_server.c
  CC    ssl/ssl_fork_server.c
ssl/ssl_fork_server.c: In function 'main':
ssl/ssl_fork_server.c:201:13: error: 'SIGCHLD' undeclared (first use in this fun
ction)
ssl/ssl_fork_server.c:201:13: note: each undeclared identifier is reported only
once for each function it appears in
ssl/ssl_fork_server.c:280:9: warning: implicit declaration of function 'fork'
make[1]: *** [ssl/ssl_fork_server] Error 1
make: *** [all] Error 2

Svenstream@Svenstream-PC ~/polarssl-1.0.0
$

Can someone help me ???
What is my mistake ???
Iam not an expert in compiling programms!
In this moment Iam a beginner!
I only install "MinGW" and "copy & paste" from the manual!

BTW... I have three questions...

1. In the manual I found the link...
http://repo.or.cz/w/rtmpdump.git/snapshot/HEAD.tar.gz
Is the "HEAD.tar.gz" allways the newest Version of RTMPDUMP ?
Or is it better to select the newest snapshot ?
( http://repo.or.cz/w/rtmpdump.git/sna...99084e5.tar.gz )

2. Is it right that the "Git-Name" is allways the first seven digits of the commit ?

3. Which parts of MinGW I need, for compiling and work with no errors and no problems ?
For a better answer I have insert a screenshot:



I hope someone can help me to find the right solution and answer my questions!

Greetings

Sven