[Buildroot] [PATCH 1/2] Cdrtools is a set of command line programs that allows to record CD/DVD/BluRay media. This package contains the cdrecord & mkisofs programs.

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Steve Kenton,

Have you looked at the 'cdrkit' package? I believe it bundles the same
tools as cdrtools, but with a sane build system and not this
brain-damaged build system that cdrtools uses.

That being said, here is a review of your patch below.

First, the title should be simply:

	cdrtools: new package

On Mon,  2 Feb 2015 05:40:52 +0000, Steve Kenton wrote:

> diff --git a/package/Config.in b/package/Config.in
> index dd011be..1748e88 100644
> --- a/package/Config.in
> +++ b/package/Config.in
> @@ -6,6 +6,7 @@ menu "Audio and video applications"
>  	source "package/alsa-utils/Config.in"
>  	source "package/aumix/Config.in"
>  	source "package/bellagio/Config.in"
> +	source "package/cdrtools/Config.in"

Since it's really the same sort of tools than cdrkit, I'd rather see
cdrtools next to cdrkit in the menus.

> diff --git a/package/cdrtools/Config.in b/package/cdrtools/Config.in
> new file mode 100644
> index 0000000..8583cec
> --- /dev/null
> +++ b/package/cdrtools/Config.in
> @@ -0,0 +1,12 @@
> +config BR2_PACKAGE_CDRTOOLS
> +	bool "cdrtools"
> +	depends on BR2_USE_WCHAR && BR2_LARGEFILE

We generally put this on two separate lines.

> +	help
> +	  Cdrtools is a set of command line programs that
> +	  allows to record CD/DVD/BluRay media. This
> +	  package contains the cdrecord & mkisofs programs.
> +	  
> +	  http://sourceforge.net/projects/cdrtools
> +
> +comment "cdrtools needs a toolchain w/ wchar, largefile"
> +	depends on !BR2_USE_WCHAR || !BR2_LARGEFILE
> diff --git a/package/cdrtools/cdrtools.mk b/package/cdrtools/cdrtools.mk
> new file mode 100644
> index 0000000..a732e69
> --- /dev/null
> +++ b/package/cdrtools/cdrtools.mk
> @@ -0,0 +1,21 @@
> +#############################################################
> +#
> +# cdrtools
> +#
> +#############################################################

You should have 80 # signs for the header. And one empty new line
between the header and the first variable.

> +CDRTOOLS_VERSION = 3.00
> +CDRTOOLS_SITE = http://sourceforge.net/projects/cdrtools/files
> +CDRTOOLS_LICENSE = Various parts under GPLv2.0, LGPLv2.1, CDDL - see COPYING

Don't use "see COPYING", this is already encoded by the
<pkg>_LICENSE_FILES variable below.

> +CDRTOOLS_LICENSE_FILES = COPYING
> +
> +define CDRTOOLS_BUILD_CMDS
> +	$(MAKE) -C $(@D)
> +endef

This unfortunately doesn't work at all: it builds the tools with the
host compiler, so always for x86 or x86-64. Is this your intention? If
it is your intention, then it should be a host package, and not a
target package.

> +
> +define CDRTOOLS_INSTALL_TARGET_CMDS
> +	$(INSTALL) -m 0755 -D $(@D)/cdrecord/OBJ/x86_64-linux-cc/cdrecord $(TARGET_DIR)/usr/bin/cdrecord
> +	$(INSTALL) -m 0755 -D $(@D)/readcd/OBJ/x86_64-linux-cc/readcd $(TARGET_DIR)/usr/bin/readcd
> +	$(INSTALL) -m 0755 -D $(@D)/mkisofs/OBJ/x86_64-linux-cc/mkisofs $(TARGET_DIR)/usr/bin/mkisofs
> +endef

This cannot work: you enforce "x86_64-linux-cc", but we might be
building for ARM, PowerPC, MIPS, etc. Also, isn't there a "make
install" rule to simplify the installation logic?

So basically, try to do a build for ARM, and make sure 1/ it builds
fine and 2/ the installed binaries are actually built for ARM.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com