Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

[Matt Schepers]

I would like to filter out two configure flags from EXTRA_OECONF in a
.bbappend. When I filter out only one everything works, when I do the same
thing twice it doesn't.

Here is the .bbappend that works:
    EXTRA_OECONF := "${@oe_filter_out('--with-term=rxvt', '${EXTRA_OECONF}', d)}"
    EXTRA_OECONF += " --enable-256-color"

Here is the .bbappend that doesn't work:
    EXTRA_OECONF := "${@oe_filter_out('--with-term=rxvt', '${EXTRA_OECONF}', d)}"
    EXTRA_OECONF := "${@oe_filter_out('--with-name=rxvt', '${EXTRA_OECONF}', d)}"
    EXTRA_OECONF += " --enable-256-color"

Here is the error at the command line for the one doesn't work:
    Loading cache: 100% |###########################################################################################################################################################################################################| Time: 0:00:00
    Loaded 2806 entries from dependency cache.
    ERROR: ExpansionError during parsing /home/matt/nitrogen6x/yocto/meta/poky/meta/recipes-sato/rxvt-unicode/rxvt-unicode_9.22.bb                                                                                                 | ETA:  --:--:--
    Traceback (most recent call last):
    bb.data_smart.ExpansionError: Failure expanding variable EXTRA_OECONF[:=], expression was ${@oe_filter_out('--with-name=rxvt', '${@oe_filter_out('--with-term=rxvt', '--enable-xim 		--enable-utmp --enable-wtmp --enable-lastlog 	--with-term=rxvt --enable-keepscrolling 		--enable-xft --with-name=rxvt --enable-frills 		--enable-swapscreen --enable-transparency 		--with-codesets=eu --enable-pointer-blank 		--enable-text-blink --enable-rxvt-scroll 		--enable-combining --disable-perl 		--with-x=/home/matt/nitrogen6x/yocto/build/tmp/work/armv7at2hf-neon-fslc-linux-gnueabi/rxvt-unicode/%-r0/recipe-sysroot/usr --disable-static ${PACKAGECONFIG_CONFARGS}', d)} --disable-static ${PACKAGECONFIG_CONFARGS}', d)} which triggered exception SyntaxError: invalid syntax (EXTRA_OECONF[:=], line 1)

Question 1)
    Why doesn't this work?

Question 2)
    What do I have to do to filter out BOTH configure flags. I realize I can just write a new recipe, but I don't think that's the "correct" answer.

Thank you.

Re: Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

[Alexander Kanavin]

On 11/17/2017 12:37 AM, Matt Schepers wrote:
>      What do I have to do to filter out BOTH configure flags. I realize I can just write a new recipe, but I don't think that's the "correct" answer.

The best way to fix this is to modify the original recipe so that all 
three options become PACKAGECONFIG-configurable, and submit the patch to 
whoever maintains the recipe.

Alex

Re: Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

[Matt Schepers]

I ended up completely overriding EXTRA_OECONF in my .bbappend with the configure flags that I wanted.

I guess I don't understand the order of evaluation in yocto's .bbappend and .bb files. Based on the error I got, problem with double use of  := operator, it seems that statements in .bbappend files are not evaluated in order.


________________________________________
From: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Sent: Friday, November 17, 2017 12:03 AM
To: Matt Schepers; yocto@yoctoproject.org
Subject: Re: [yocto] Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

On 11/17/2017 12:37 AM, Matt Schepers wrote:
>      What do I have to do to filter out BOTH configure flags. I realize I can just write a new recipe, but I don't think that's the "correct" answer.

The best way to fix this is to modify the original recipe so that all
three options become PACKAGECONFIG-configurable, and submit the patch to
whoever maintains the recipe.

Alex

Re: Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

[Ola x Nilsson]

This is not a typical use of variables in bitbake.  I'm not sure whether it is defined behavior or not, but I doubt you'll find many such examples in the yocto layers.

You can write

EXTRA_OECONF_remove = "--with-term=rxvt --with-name=rxvt"

in your bbappend file.  

The problem with this style is that you can never add these options again using _append or any of the += operators.


-- 
Ola Nilsson
________________________________________
From: yocto-bounces@yoctoproject.org <yocto-bounces@yoctoproject.org> on behalf of Matt Schepers <mschepers@telspandata.com>
Sent: Friday, November 17, 2017 18:07
To: Alexander Kanavin; yocto@yoctoproject.org
Subject: Re: [yocto] Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

I ended up completely overriding EXTRA_OECONF in my .bbappend with the configure flags that I wanted.

I guess I don't understand the order of evaluation in yocto's .bbappend and .bb files. Based on the error I got, problem with double use of  := operator, it seems that statements in .bbappend files are not evaluated in order.


________________________________________
From: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Sent: Friday, November 17, 2017 12:03 AM
To: Matt Schepers; yocto@yoctoproject.org
Subject: Re: [yocto] Trying to filter out 2 strings from EXTRA_OECONF, why doesn't this work?

On 11/17/2017 12:37 AM, Matt Schepers wrote:
>      What do I have to do to filter out BOTH configure flags. I realize I can just write a new recipe, but I don't think that's the "correct" answer.

The best way to fix this is to modify the original recipe so that all
three options become PACKAGECONFIG-configurable, and submit the patch to
whoever maintains the recipe.

Alex
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