Error when compiling on Ubuntu 20.04

[belveruski]

Hi,

I have followed the instructions of the official documentation but I have the following errors:

$ tar -zxf yara-4.1.0.tar.gz
$ cd yara-4.1.0
$ ./bootstrap.sh
$ ./configure

Errors during the execution of the ./configure command:

./configure: line 11371: syntax error near unexpected token `PROTOBUF_C,'
./configure: line 11371: `    PKG_CHECK_MODULES(PROTOBUF_C, libprotobuf-c >= 1.0.0)'

[Churam]

I have the same problem on debian 9 with autotools 1.16 (but not on debian 10 with autotools 1.16.1). Which version of autotools are you using?

[plusvic]

This may happen because pkg-config is not installed, see: #1171

[belveruski]

@Churam I am on Ubuntu 20.04.3 LTS with autotools-dev version 20180224.1.

[belveruski]

@plusvic pkg-config is installed on the machine.

[belveruski]

The packages required for build are installed :

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version           Architecture Description
+++-==============-=================-============-=====================================================
ii  automake       1:1.16.1-4ubuntu6 all          Tool for generating GNU Standards-compliant Makefiles
ii  bison          2:3.5.1+dfsg-1    amd64        YACC-compatible parser generator
ii  flex           2.6.4-6.2         amd64        fast lexical analyzer generator
ii  gcc            4:9.3.0-1ubuntu2  amd64        GNU C compiler
ii  libtool        2.4.6-14          all          Generic library support script
ii  make           4.2.1-1.2         amd64        utility for directing compilation
ii  pkg-config     0.29.1-0ubuntu4   amd64        manage compile and link flags for libraries
vagrant@ubuntu20-desktop:~/Tools/yara-4.1.2$ 

[EYIDC]

I'm having the same issue. Did you ever find a fix?

Ok so the workaround that seemed to have worked for me was downgrade to yara 4.0.5 build. And then upgrade to the latest. Unsure why this worked but it did.

Edit: really seems to have to do with the order of package installing. "pkg-config" did fix the issue but not if it was installed at later time. So doing a ./bootstrap.sh & ./configure didn't fix the issue if pkg-config was installed after the other steps. But when i did a full reinstall of my VM with the correct order it did work.

[utkonos]

@EYIDC

Yes, I can confirm on 22.04. If you're missing pkg-config and ./configure stops, you will need to start fresh after installing that package. No need to blow out the whole VM, but deleting the yara directory and extracting the tar archive again does the trick.

[plusvic]

Maybe make clean would do the trick too, instead of having to delete the whole yara directory.