On 24.04.2018 19:58, Ian Jackson wrote:
> This makes it much easier to find a particular thing in config.log.
>
> We have to use the ${BASH_LINENO[*]} syntax which is a syntax error in
> other shells, so test what shell we are running and use eval.
>
> The extra output is only printed if configure is run with bash. On
> systems where /bin/sh is not bash, it is necessary to say bash
> ./configure to get the extra debug info in the log.
>
> Suggested-by: Eric Blake <ebl...@redhat.com>
> Signed-off-by: Ian Jackson <ian.jack...@eu.citrix.com>
> CC: Kent R. Spillner <kspill...@acm.org>
> CC: Janosch Frank <fran...@linux.vnet.ibm.com>
> CC: Thomas Huth <th...@redhat.com>
> CC: Peter Maydell <peter.mayd...@linaro.org>
> CC: Paolo Bonzini <pbonz...@redhat.com>
> ---
> v8: Fix so that it actually works as intended with bash.
> v6: Fix commit message wording.
> v4: No longer tag this patch RFC.
> ---
> configure | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/configure b/configure
> index aa35aef..f9ba9ea 100755
> --- a/configure
> +++ b/configure
> @@ -60,6 +60,11 @@ do_compiler() {
> # is compiler binary to execute.
> local compiler="$1"
> shift
> + if test -n "$BASH_VERSION"; then eval '
> + echo >>config.log "
> +funcs: ${FUNCNAME[*]}
> +lines: ${BASH_LINENO[*]}"
> + '; fi
> echo $compiler "$@" >> config.log
> $compiler "$@" >> config.log 2>&1 || return $?
> # Test passed. If this is an --enable-werror build, rerun
I just applied the patch and had a look at config.log, and this looks
useful indeed.
Tested-by: Thomas Huth <th...@redhat.com>
