[Spice-devel] [spice-common] m4: Add macro for --enable-lz4

[Christophe Fergeau]

Hey,

On Thu, Jun 18, 2015 at 11:58:20AM +0200, Christophe Fergeau wrote:
> It's not directly used by spice-common, but this way spice-gtk and
> spice-server can share the same implementation.
> ---
>  m4/spice-deps.m4 | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/m4/spice-deps.m4 b/m4/spice-deps.m4
> index 600dd98..df35a92 100644
> --- a/m4/spice-deps.m4
> +++ b/m4/spice-deps.m4
> @@ -173,3 +173,27 @@ AC_DEFUN([SPICE_CHECK_PYTHON_MODULES], [
>          AX_PYTHON_MODULE([pyparsing], [1])
>      fi
>  ])
> +
> +
> +# SPICE_CHECK_LZ4(PREFIX)
> +# -----------------------------
> +# Adds a --enable-lz4 switch in order to enable/disable LZ4 compression
> +# support, and checks if the needed libraries are available. If found, it will
> +# append the flags to use to the $PREFIX_CFLAGS and $PREFIX_LIBS variables, and
> +# it will define a USE_LZ4 preprocessor symbol as well as a SUPPORT_LZ4 Makefile
> +# conditional.
> +#------------------------------
> +AC_DEFUN([SPICE_CHECK_LZ4], [
> +    AC_ARG_ENABLE([lz4],
> +      AS_HELP_STRING([--enable-lz4=@<:@yes/no@:>@],
> +                     [Enable LZ4 compression support @<:@default=no@:>@]),
> +      [],
> +      [enable_lz4="no"])
> +
> +    if test "x$enable_lz4" != "xno"; then
> +      PKG_CHECK_MODULES([LZ4], [liblz4])

Following
http://lists.freedesktop.org/archives/spice-devel/2015-June/020431.html
, would be a good place to add a liblz4 >= 118
(can go in a separate patch too).

Christophe
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