Library check

TO check for libraries needed for the package

$ ldd rmblastn 
    linux-vdso.so.1 =>  (0x00007fff5b9e4000)
    libz.so.1 => /lib/libz.so.1 (0x00007f7e7c416000)
    libdl.so.2 => /lib/libdl.so.2 (0x00007f7e7c212000)
    libpcre.so.0 => not found
    libnsl.so.1 => /lib/libnsl.so.1 (0x00007f7e7bff7000)
    libpthread.so.0 => /lib/libpthread.so.0 (0x00007f7e7bdda000)
    libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f7e7bac5000)
    libm.so.6 => /lib/libm.so.6 (0x00007f7e7b842000)
    libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f7e7b62b000)
    libc.so.6 => /lib/libc.so.6 (0x00007f7e7b2a7000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f7e7c63c000)

This tells you that libpcre.so.0 library is missing.