Re: [gentoo-dev] [PATCH] kernel-2.eclass: Make xmakeopts an array for spaces in toolchain vars

[Joshua Kinard]

On 1/21/2023 06:03, James Le Cuirot wrote:
> Variables like CC can have spaces for additional arguments. This is
> particularly useful for reliably setting the sysroot.
>
> Signed-off-by: James Le Cuirot <chewi@g.o>
> ---
>   eclass/kernel-2.eclass | 21 +++++++++++++++------
>   1 file changed, 15 insertions(+), 6 deletions(-)
>
> diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
> index 873d4a204669..f7fcf15743f0 100644
> --- a/eclass/kernel-2.eclass
> +++ b/eclass/kernel-2.eclass
> @@ -1,4 +1,4 @@
> -# Copyright 1999-2022 Gentoo Authors
> +# Copyright 1999-2023 Gentoo Authors
>   # Distributed under the terms of the GNU General Public License v2
>
>   # @ECLASS: kernel-2.eclass
> @@ -756,13 +756,22 @@ env_setup_xmakeopts() {
>
>   	# When cross-compiling, we need to set the ARCH/CROSS_COMPILE
>   	# variables properly or bad things happen !
> -	xmakeopts="ARCH=${KARCH}"
> +	xmakeopts=( ARCH="${KARCH}" )
>   	if [[ ${CTARGET} != ${CHOST} ]] && ! cross_pre_c_headers; then
> -		xmakeopts="${xmakeopts} CROSS_COMPILE=${CTARGET}-"
> +		xmakeopts+=( CROSS_COMPILE="${CTARGET}-" )
>   	elif type -p ${CHOST}-ar >/dev/null; then
> -		xmakeopts="${xmakeopts} CROSS_COMPILE=${CHOST}-"
> +		xmakeopts+=( CROSS_COMPILE="${CHOST}-" )
>   	fi
> -	xmakeopts="${xmakeopts} HOSTCC=$(tc-getBUILD_CC) CC=$(tc-getCC) LD=$(tc-getLD) AR=$(tc-getAR) NM=$(tc-getNM) OBJCOPY=$(tc-getOBJCOPY) READELF=$(tc-getREADELF) STRIP=$(tc-getSTRIP)"
> +	xmakeopts+=(
> +		HOSTCC="$(tc-getBUILD_CC)"
> +		CC="$(tc-getCC)"
> +		LD="$(tc-getLD)"
> +		AR="$(tc-getAR)"
> +		NM="$(tc-getNM)"
> +		OBJCOPY="$(tc-getOBJCOPY)"
> +		READELF="$(tc-getREADELF)"
> +		STRIP="$(tc-getSTRIP)"
> +	)
>   	export xmakeopts
>   }
>
> @@ -850,7 +859,7 @@ install_headers() {
>   	local ddir=$(kernel_header_destdir)
>
>   	env_setup_xmakeopts
> -	emake headers_install INSTALL_HDR_PATH="${ED}"${ddir}/.. ${xmakeopts}
> +	emake headers_install INSTALL_HDR_PATH="${ED}"${ddir}/.. "${xmakeopts[@]}"
>
>   	# let other packages install some of these headers
>   	rm -rf "${ED}"${ddir}/scsi || die #glibc/uclibc/etc...

Can we perhaps use this opportunity to make "xmakeopts" more clear via a better name, as well as uppercase it 
to indicate that it is an exported variable?  E.g., something like "CROSS_MAKEOPTS" is more clear to the 
reader than "xmakeopts", IMHO.

I realize such a change may be a tad invasive to the eclass and possibly touch some ebuilds, so that may need 
to be a separate patch that this proposed change would then be based off of.

-- 
Joshua Kinard
Gentoo/MIPS
kumba@g.o
rsa6144/5C63F4E3F5C6C943 2015-04-27
177C 1972 1FB8 F254 BAD0 3E72 5C63 F4E3 F5C6 C943

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