Even I've faced the same issue... ====================== [root@server1 Crypt-OpenSSL-RSA-0.25]# make gcc -c -D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -DVERSION=\"0.25\" -DXS_VERSION=\"0.25\" -fPIC "-I/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE" -DPERL5 -DOPENSSL_NO_KRB5 RSA.c Running Mkbootstrap for Crypt::OpenSSL::RSA () chmod 644 RSA.bs rm -f blib/arch/auto/Crypt/OpenSSL/RSA/RSA.so gcc -shared -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -L/usr/local/lib RSA.o -o blib/arch/auto/Crypt/OpenSSL/RSA/RSA.so \ -lssl -lcrypto \ chmod 755 blib/arch/auto/Crypt/OpenSSL/RSA/RSA.so cp RSA.bs blib/arch/auto/Crypt/OpenSSL/RSA/RSA.bs chmod 644 blib/arch/auto/Crypt/OpenSSL/RSA/RSA.bs Manifying blib/man3/Crypt::OpenSSL::RSA.3pm [root@server1 Crypt-OpenSSL-RSA-0.25]# make test PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t t/bignum....skipped all skipped: no reason given t/format....ok t/rsa.......ok 1/63# Failed test 63 in t/rsa.t at line 150 t/rsa.......NOK 63# t/rsa.t line 150 is: ok(!$@); t/rsa.......FAILED test 63 Failed 1/63 tests, 98.41% okay Failed Test Stat Wstat Total Fail Failed List of Failed ------------------------------------------------------------------------------- t/rsa.t 63 1 1.59% 63 1 test skipped. Failed 1/3 test scripts, 66.67% okay. 1/73 subtests failed, 98.63% okay. make: *** [test_dynamic] Error 255 ====================================== Any help will be appreciated.. thanks in advance.