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.

(From OE-Core rev: f15f61af77cc4e52a037f509f8e49e1ea530cf35)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

-nativesdk recipes should not have dependency to lib-cross, which is
never used. This unnecessary dependency would result different task hash
values in sstate for different MACHINE settings.

Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Using "1" with getVar is bad coding style and "True" is preferred.
This patch is a sed over the meta directory of the form:

sed \
 -e 's:\(\.getVar([^,()]*, \)1 *):\1True):g' \
 -e 's:\(\.getVarFlag([^,()]*, [^,()]*, \)1 *):\1True):g' \
 -i `grep -ril getVar *`

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

We need to ensure any aclocal-copy directory is removed before we s
earch for .m4 files, else the locations .m4 files are found from can
vary depending on whether its the first or second time we run configure.

Clearing any existing aclocal-copy directory before we start resolves
this issue and makes builds deterministic again.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

* If configure.ac contains AM_GNU_GETTEXT and po/Makefile.in.in
  doesn't exist, autotools_do_configure() copies a local
  version of Makefile.in.in to this location. If the directory
  'po' doesn't exist, the function aborts.

* This patch verifies that the directory exists before copying
  a file to it. This fixes libcddb, which uses AM_GNU_GETTEXT,
  but has no 'po' directory.

Signed-off-by: Andreas Oberritter <obi@opendreambox.org>

This variable is for holding the cached configure variables
to be specified in recipes. e.g.

CACHED_CONFIGUREVARS += "ac_cv_foo=yes ac_cv_bar=no"

This will make sure that the variables are not detected
by configure. This is useful in cross builds where
some features can not be detected correctly by configure
and having it as a variables gives us capability to
override it

Signed-off-by: Khem Raj <raj.khem@gmail.com>

the .../usr/share/aclocal is empty for build from scratch. so avoid cp
error if the directory is empty.

Fixes this error, which is thrown before pseudo is built:

| cp: cannot stat
`/builddisk/build/build0/tmp/sysroots/x86_64-linux/usr/share/aclocal/*':
No such file or directory
NOTE: package libtool-native-2.4.2-r0.0: task do_configure: Failed

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>

If the configure script isn't found, report the explicit path tried.
This can help debug subtle errors where the ${S} sourcedir may not
be exactly what is expected.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This is the result of running the following over the metadata:

sed \
-e 's:bb.data.\(setVar([^,()]*,[^,()]*\), *\([^ )]*\) *):\2.\1):g' \
-e 's:bb.data.\(setVarFlag([^,()]*,[^,()]*,[^,()]*\), *\([^) ]*\) *):\2.\1):g' \
-e 's:bb.data.\(getVar([^,()]*\), *\([^(), ]*\) *,\([^)]*\)):\2.\1,\3):g' \
-e 's:bb.data.\(getVarFlag([^,()]*,[^,()]*\), *\([^(), ]*\) *,\([^)]*\)):\2.\1,\3):g' \
-e 's:bb.data.\(getVarFlag([^,()]*,[^,()]*\), *\([^() ]*\) *):\2.\1):g' \
-e 's:bb.data.\(getVar([^,()]*\), *\([^) ]*\) *):\2.\1):g' \
-i `grep -ril bb.data *`

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This is needed to better support things like the following (with a
multi-word BUILD_CC):

    EXTRA_OECONF += '"ac_cv_prog_CC_FOR_BUILD=${BUILD_CC}"'

Signed-off-by: Christopher Larson <kergoth@gmail.com>