os_type unix
soname_pattern_base "libbotan-{version_major}.{version_minor}.so"
soname_pattern_abi "libbotan-{version_major}.{version_minor}.so.{abi_rev}"
soname_pattern_patch "libbotan-{version_major}.{version_minor}.so.{abi_rev}.{version_patch}"
clock_gettime
gettimeofday
posix_mlock
gmtime_r
dlopen
readdir
timegm
sockets
threads
filesystem
linux-gnu