Hi!

I am trying to build clamav 0.100.0 on Slack64 14.1 with lvvm 3.3 (from patches) installed, but i get an error:
/usr/lib64/gcc/x86_64-slackware-linux/4.8.2/../../../../x86_64-slackware-linux/bin/ld: cannot find -lLLVM-3.3

ld -lLLVM-3.3 --verbose gives:

attempt to open /usr/x86_64-slackware-linux/lib64/libLLVM-3.3.so failed
attempt to open /usr/x86_64-slackware-linux/lib64/libLLVM-3.3.a failed
attempt to open /usr/local/lib64/libLLVM-3.3.so failed
attempt to open /usr/local/lib64/libLLVM-3.3.a failed
attempt to open /lib64/libLLVM-3.3.so failed
attempt to open /lib64/libLLVM-3.3.a failed
attempt to open /usr/lib64/libLLVM-3.3.so failed
attempt to open /usr/lib64/libLLVM-3.3.a failed
attempt to open /usr/x86_64-slackware-linux/lib/libLLVM-3.3.so failed
attempt to open /usr/x86_64-slackware-linux/lib/libLLVM-3.3.a failed
attempt to open /usr/lib64/libLLVM-3.3.so failed
attempt to open /usr/lib64/libLLVM-3.3.a failed
attempt to open /usr/local/lib/libLLVM-3.3.so failed
attempt to open /usr/local/lib/libLLVM-3.3.a failed
attempt to open /lib/libLLVM-3.3.so failed
attempt to open /lib/libLLVM-3.3.a failed
attempt to open /usr/lib/libLLVM-3.3.so failed
attempt to open /usr/lib/libLLVM-3.3.a failed
ld: cannot find -lLLVM-3.3

the configure summary:

configure: Summary of detected features follows
OS : linux-gnu
pthreads : yes (-lpthread)
configure: Summary of miscellaneous features
check : no (auto)
fanotify : yes
fdpassing : 1
IPv6 : yes
configure: Summary of optional tools
clamdtop : -L/usr/lib64 -lncurses
milter : yes
clamsubmit : yes (libjson-c-dev found at /usr), libcurl-devel found at /usr)
configure: Summary of engine performance features
release mode: yes
llvm : yes (3.3), from /usr/bin/llvm-config (dynamic) (auto)
mempool : yes
configure: Summary of engine detection features
bzip2 : ok
zlib : /usr
unrar : no (disabled)
preclass : yes (libjson-c-dev found at /usr)
pcre : /usr
libmspack : yes (Internal)
libxml2 : yes, from /usr
yara : yes
fts : yes (internal, libc's is not LFS compatible)

===============


If I disable the use of lvvm, the package gets built, but it is 3 times smaller than with lvvm enabled (tested on 0.99.4 both ways).

So, the questions:
1. What the package gets better using lvvm
2. How could I achieve the use of lvvm for building of 0.100.0?

regarding the usefulness of llvm with clamav you can have a look at

https://blog.talosintelligence.com/2...low-level.html

as why the new 0.100.0 version isn't using the system's llvm on slackware 14.1 that's because that version has been deprecated by the clamav people

https://blog.clamav.net/2018/04/clam...-released.html

so passing "--with-system-llvm=no" you will actually still using the deprecated llvm code.
for more insight on this, IMHO, you are better off writing a question on the clamav-users mailing list.