[PATCH] clamav: Disable llvm support.

[PATCH] clamav: Disable llvm support.

[Stefan Schantl]

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When enabled, LLVM provides the capability to just-in-time compile ClamAV bytecode signatures.
Without LLVM, ClamAV uses a built-in bytecode interpreter to execute bytecode signatures.
The mechanism is different, but the results are same and the performance overall is comparable.

At present only LLVM versions up to LLVM 3.6.2 are supported by ClamAV, and LLVM 3.6.2 is old enough
that newer distributions no longer provide it. Therefore, the ClamAV Devs recommend using the
--disable-llvm configure option.

Fixes #11601.

Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
---
 clamav/clamav.nm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/clamav/clamav.nm b/clamav/clamav.nm
index 9a550544e..9abe6c40e 100644
--- a/clamav/clamav.nm
+++ b/clamav/clamav.nm
@@ -5,7 +5,7 @@
 
 name       = clamav
 version    = 0.101.2
-release    = 1
+release    = 2
 
 groups     = System Environment/Daemons
 url        = http://www.clamav.net
@@ -49,6 +49,7 @@ build
 		--with-user=clamupdate \
 	        --with-group=clamupdate \
 		--disable-rpath \
+		--disable-llvm \
 		have_cv_ipv6=yes
 
 	# User and group have to exist to compile the source code,
-- 
2.21.0

Re: [PATCH] clamav: Disable llvm support.

[Michael Tremer]

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Thanks for doing this research. Merged.

> On 4 Jul 2019, at 14:44, Stefan Schantl <stefan.schantl(a)ipfire.org> wrote:
> 
> When enabled, LLVM provides the capability to just-in-time compile ClamAV bytecode signatures.
> Without LLVM, ClamAV uses a built-in bytecode interpreter to execute bytecode signatures.
> The mechanism is different, but the results are same and the performance overall is comparable.
> 
> At present only LLVM versions up to LLVM 3.6.2 are supported by ClamAV, and LLVM 3.6.2 is old enough
> that newer distributions no longer provide it. Therefore, the ClamAV Devs recommend using the
> --disable-llvm configure option.
> 
> Fixes #11601.
> 
> Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
> ---
> clamav/clamav.nm | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/clamav/clamav.nm b/clamav/clamav.nm
> index 9a550544e..9abe6c40e 100644
> --- a/clamav/clamav.nm
> +++ b/clamav/clamav.nm
> @@ -5,7 +5,7 @@
> 
> name       = clamav
> version    = 0.101.2
> -release    = 1
> +release    = 2
> 
> groups     = System Environment/Daemons
> url        = http://www.clamav.net
> @@ -49,6 +49,7 @@ build
> 		--with-user=clamupdate \
> 	        --with-group=clamupdate \
> 		--disable-rpath \
> +		--disable-llvm \
> 		have_cv_ipv6=yes
> 
> 	# User and group have to exist to compile the source code,
> -- 
> 2.21.0
>