Checking if your kit is complete... Warning: the following files are missing in your kit: Makefile.old Please inform the author. Writing Makefile for Crypt::SMIME cp lib/SMIME.pm blib/lib/Crypt/SMIME.pm cp lib/SMIME/JA.pod blib/lib/Crypt/SMIME/JA.pod /home/cpanrun/build/5.6.1/bin/perl -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi -I/home/cpanrun/build/5.6.1/lib/5.6.1 /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap SMIME.xs > SMIME.xsc && mv SMIME.xsc SMIME.c gcc -c -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DVERSION=\"0.08\" -DXS_VERSION=\"0.08\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE SMIME.c SMIME.xs:2: openssl/crypto.h: No such file or directory SMIME.xs:3: openssl/pem.h: No such file or directory SMIME.xs:4: openssl/err.h: No such file or directory SMIME.xs:5: openssl/pkcs12.h: No such file or directory SMIME.xs:6: openssl/x509.h: No such file or directory make: *** [SMIME.o] Error 1