svn commit: r320245 - head/share/mk

[Cy Schubert]

In message <201706222103.v5ML3Oq3026557 at repo.freebsd.org>, Bryan Drewery 
writes
:
> Author: bdrewery
> Date: Thu Jun 22 21:03:24 2017
> New Revision: 320245
> URL: https://svnweb.freebsd.org/changeset/base/320245
> 
> Log:
>   Support XLD for setting X_LINKER_TYPE and X_LINKER_VERSION.
>   
>   This is similar to r300350 for bsd.compiler.mk.
>   
>   MFC after:	2 weeks
>   Reviewed by:	emaste
>   Sponsored by:	Dell EMC Isilon
>   Differential Revision:	https://reviews.freebsd.org/D11309
> 
> Modified:
>   head/share/mk/bsd.linker.mk
> 
> Modified: head/share/mk/bsd.linker.mk
> =============================================================================
> =
> --- head/share/mk/bsd.linker.mk	Thu Jun 22 21:03:20 2017	(r32024
> 4)
> +++ head/share/mk/bsd.linker.mk	Thu Jun 22 21:03:24 2017	(r32024
> 5)
> @@ -9,25 +9,39 @@
>  #     major * 10000 + minor * 100 + tiny
>  # It too can be overridden on the command line.
>  #
> +# These variables with an X_ prefix will also be provided if XLD is set.
> +#
>  # This file may be included multiple times, but only has effect the first ti
> me.
>  #
>  
>  .if !target(__<bsd.linker.mk>__)
>  __<bsd.linker.mk>__:
>  
> -_ld_version!=	${LD} --version 2>/dev/null | head -n 1 || echo none
> +.for ld X_ in LD $${_empty_var_} XLD X_
> +.if ${ld} == "LD" || !empty(XLD)
> +.if ${ld} == "LD" || (${ld} == "XLD" && ${XLD} != ${LD})
> +
> +_ld_version!=	${${ld}} --version 2>/dev/null | head -n 1 || echo none

This line gave one of my machines a bit of gas with the error:

sh: head: not found
make[2]: "/opt/src/svn-current/share/mk/bsd.linker.mk" line 42: Unable to 
determine linker type from LD=ld
*** Error code 1

Specifying
-- 
Cheers,
Cy Schubert <Cy.Schubert at cschubert.com>
FreeBSD UNIX:  <cy at FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.
 he full pathname for head resolves the isssue.

>  .if ${_ld_version} == "none"
> -.error Unable to determine linker type from LD=${LD}
> +.error Unable to determine linker type from ${ld}=${${ld}}
>  .endif
>  .if ${_ld_version:[1..2]} == "GNU ld"
> -LINKER_TYPE=	binutils
> +${X_}LINKER_TYPE=	binutils
>  _v=	${_ld_version:[3]}
>  .elif ${_ld_version:[1]} == "LLD"
> -LINKER_TYPE=	lld
> +${X_}LINKER_TYPE=	lld
>  _v=	${_ld_version:[2]}
>  .else
> -.error Unknown linker from LD=${LD}: ${_ld_version}
> +.error Unknown linker from ${ld}=${${ld}}: ${_ld_version}
>  .endif
> -LINKER_VERSION!=echo "${_v:M[1-9].[0-9]*}" | awk -F. '{print $$1 * 10000 + $
> $2 * 100 + $$3;}'
> +${X_}LINKER_VERSION!=	echo "${_v:M[1-9].[0-9]*}" | \
> +			  awk -F. '{print $$1 * 10000 + $$2 * 100 + $$3;}'
> +.undef _ld_version
> +.undef _v
> +.endif	# ${ld} == "LD" || (${ld} == "XLD" && ${XLD} != ${LD})
> +
> +.endif	# ${ld} == "LD" || !empty(XLD)
> +.endfor	# .for ld in LD XLD
> +
>  
>  .endif	# !target(__<bsd.linker.mk>__)
> 
>