Notes on cross compiling clamav-0.98.4 for freescale based arm board

Down load clamav-0.98.4.tar.gz

tar xvzf clamav-0.98.4.tar.gz

mkdir clamav_install_dir

created exports for cross compiler so configure finds the right stuff, e.g.; PATH, ARCH, CFLAGS, LDFLAGS, CROSS_COMPILE, CC, AR, LD.

cd clamav-0.98.4

This is the configure line I finally got to work:

./configure --build=i686-host-linux-gnu --host=arm-fsl-linux-gnueabi --with-openssl=/<built rootfs dir>/usr --with-zlib=/<built rootfs dir/usr --includedir=/<built rootfs dir>/usr/include --libdir=/<built rootfs dir>/usr/lib --with-gnu-ld --with-sysroot=/<built rootfs dir> - -prefix=/<my clamav build dir>/clamav_install_dir --disable-clamav --enable-unrar=no

In clamav-0.98.4/clamdscan/proto.c, sockaddr_un was unknown, so made the following change:

#ifndef _WIN32
// extern struct sockaddr_un nixsock;
struct sockaddr_in nixsock;
#endif20140924

make

make install

Note: for make install, library files are getting installed to <build rootfs dir> so you need write permssions here. It would be nice if --prefix would control where the lib files get installed. It's handy to be able to build in isolation and cherry pick what you need.

Binaries are in clamav_install_dir.

Copied binaries, libs, etc and  daily.cvd to my target. On running any of the binaries I get the following warning, which I haven't been able to get rid of, even when using the configure flag --enable-unrar=no.

LibClamAV Warning: Cannot dlopen libclamunrar_iface: file not found - unrar support unavailable

But other than this, everything appears to work. Successfully scanning files! Yeah!

Note: <built rootfs dir> this is my cross compiled root file system directory. In my case it's a, previously built(cross-compiled), typical debian based, directory  structure, e.g.: /bin, /sbin, /lib, /usr/lib, /usr/include. /lib, /usr/lib and /usr/include contain all dependent shared libraries and include files needed. (sorry if this is getting pedantic, but if cross compilation is new to you, this is a pre-requisit.)

Cheers, J.







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Bernd Kuhls <bernd.kuhls@t-online.de>
	
Sep 28 (1 day ago)
		
to clamav-users
"Mclean, John (GE Energy Management)" <JohnD.Mclean@ge.com> wrote in
news:831B11E079465943A5793894E6B32AC80B7069AC@CINURCNA24.e2k.ad.ge.com:

> In clamav-0.98.4/clamdscan/proto.c, sockaddr_un was unknown, so made the
following change:

Hi,

you could also try to add

#include <sys/un.h>

to clamdscan/proto.c. This fixes a similar bug here:

proto.c: In function ‘dconnect’:
proto.c:86:67: error: invalid application of ‘sizeof’ to incomplete type
‘struct sockaddr_un’
      if (connect(sockd, (struct sockaddr *)&nixsock, sizeof(nixsock)) == 0)

Regards, Bernd


_______________________________________________
Help us build a comprehensive ClamAV guide:
https://github.com/vrtadmin/clamav-faq

http://www.clamav.net/contact.html#ml