Hi Richard. Few days ago, I installed libyara a libguestfs properly. But when I load a yara rule and scan it via guestfs_yara_scan, my binary throughts following error: libguestfs: error: deserialise_yara_detection_list: Success And function exists with NULL value. As we can see this function is on lib/yara.c from libguestfs git. I think that these yara functions are an integration for yara C api. All debug and trace log is in libguestfs-yara.debug file. El 10/12/2019 a las 09:46, Richard W.M. Jones escribió: > On Tue, Dec 10, 2019 at 09:19:47AM +0100, Luis wrote: >> I am using libguestfs 1.40.2 and yara 3.11.0 but when I execute my program >> it thoughts the following error: >> >> $> ./yara-guestfs >> libguestfs: error: yara_load: feature 'libyara' is not available in this >> build of libguestfs. Read 'AVAILABILITY' in the guestfs(3) man page for >> >> If we check the manual, in guestfs appears guestfs_yara_load function so >> libyara is installed. I installed and compiled it from tarballs. > This function: > > https://github.com/libguestfs/libguestfs/blob/4aa4edf972bc8df8869cdcaa4ab... > > returns 1 if HAVE_YARA is defined. This is defined by this > ./configure test: > > https://github.com/libguestfs/libguestfs/blob/4aa4edf972bc8df8869cdcaa4ab... > > In other words it depends how libguestfs was configured. Where > did you get libguestfs from? How was it compiled? > > Rich. >