Apache httpd-2.2.10 crosscompile para ARM

Question

Estou tentando crosscompile o Apache 2.2.10 para a arquitetura ARM. Eu exportei variáveis CC, ARM. Também fiz crosscompiling com sucesso pacotes openssl, apr, apr-util e pcre para arquitetura ARM alvo.

Configurar:

CC_FOR_BUILD=gcc ./configure --build=i686-linux --host=arm-linux --target=arm-linux --prefix=/mnt/nand-user/apache --enable-ssl --with-ssl=/mnt/nand-user/openssl --enable-cgi --enable-so --with-pcre=/mnt/nand-user/pcre --with-apr=/mnt/nand-user/apr/ --with-apr-util=/mnt/nand-user/apr-util/ ac_cv_file__dev_zero="yes" ac_cv_func_setpgrp_void="yes" apr_cv_process_shared_works="yes" apr_cv_mutex_robust_shared="yes" apr_cv_mutex_recursive="yes" apr_cv_tcp_nodelay_with_cork="yes" ac_cv_sizeof_struct_iovec="8" ap_cv_void_ptr_lt_long="4"

Ele executa o configure ok, mas falha no make:

/mnt/nand-user/apr/build-1/libtool --silent --mode=link arm-linux-gcc -g -O2 -I/mnt/nand-user/pcre/include     -L/mnt/nand-user/openssl/lib   -o htpasswd  htpasswd.lo   -lm -L/mnt/nand-user/pcre/lib -lpcre /mnt/nand-user/apr-util/lib/libaprutil-1.la -lexpat /mnt/nand-user/apr/lib/libapr-1.la -lm -lcrypt -ldl
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_create'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_getspecific'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_mutexattr_destroy'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_detach'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_once'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_key_create'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_attr_setstacksize'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_sigmask'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_mutexattr_settype'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_mutexattr_init'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_join'
/mnt/nand-user/apr/lib/libapr-1.so: undefined reference to 'pthread_setspecific'
collect2: ld returned 1 exit status
make[2]: *** [htpasswd] Error 1
make[2]: Leaving directory '/home/radek/Build/httpd-2.2.10/support'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/radek/Build/httpd-2.2.10/support'
make: *** [all-recursive] Error 1

O que devo fazer?