On Tue, Sep 11, 2012 at 9:22 AM, Richard Purdie
<richard.pur...@linuxfoundation.org> wrote:
> Unfortunately whilst rerunning configure and make against a project will
> mostly
> work there are situations where it does not correctly do the right thing.
>
> In particular, eglibc and gcc will fail out with errors where settings
> do not match a previously built configuration. It could be argued they are
> broken but the situation is what it is. There is the possibility of more
> subtle
> errors too.
>
> This patch adds removal of the build directory (${B}) when configure is
> rerunning, the sstate checksum for do_configure has changed and ${S} != ${B}.
> We could simply use a stamp but saving out the previous configuration checksum
> adds some data at no real overhead.
>
> If we find there are things where we want to disable this behaviour with
> CONFIGURESTAMPFILE = "" in the recipe, or users could disable it globally.
>
> [YOCTO #2774]
> [YOCTO #2848]
>
> This is particularly helpful for eglibc and gcc which use split builds by
> default and
> are a particular source of reconfigure type problems.
>
> Signed-off-by: Richard Purdie <richard.pur...@linuxfoundation.org>
Is it feasible to back port this to denzil? I've encountered what I
think are similar issues reconfiguring gcc for example.
-M
> ---
> diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
> index 4c4bf87..a5997c5 100644
> --- a/meta/classes/autotools.bbclass
> +++ b/meta/classes/autotools.bbclass
> @@ -89,6 +89,27 @@ oe_runconf () {
>
> AUTOTOOLS_AUXDIR ?= "${S}"
>
> +CONFIGURESTAMPFILE = "${WORKDIR}/configure.sstate"
> +
> +autotools_preconfigure() {
> + if [ -n "${CONFIGURESTAMPFILE}" -a -e "${CONFIGURESTAMPFILE}" ]; then
> + if [ "`cat ${CONFIGURESTAMPFILE}`" != "${BB_TASKHASH}" -a
> "${S}" != "${B}" ]; then
> + echo "Previously configured separate build directory
> detected, cleaning ${B}"
> + rm -rf ${B}
> + mkdir ${B}
> + fi
> + fi
> +}
> +
> +autotools_postconfigure(){
> + if [ -n "${CONFIGURESTAMPFILE}" ]; then
> + echo ${BB_TASKHASH} > ${CONFIGURESTAMPFILE}
> + fi
> +}
> +
> +do_configure[prefuncs] += "autotools_preconfigure"
> +do_configure[postfuncs] += "autotools_postconfigure"
> +
> autotools_do_configure() {
> case ${PN} in
> autoconf*)
>
>
>
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