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According to the ncurses 6.0 release notes (the site is at
<a class="moz-txt-link-rfc2396E" href="https://www.gnu.org/software/ncurses/">"https://www.gnu.org/software/ncurses/"</a>), the intent of the release
is to provide a new stable ABI, <br>
which is binary-incompatible with ncurses 5, <font color="#3333ff">but
it can still be configured to support the ncurses5</font>.
Because this release introduces <font color="#3333ff">symbol-versioning</font>.
<br>
The <font color="#3333ff">symbol-versioning </font>allows the
developers of a library tomark each public sysmbol(both data and
functions) with an identifier denoting the library name and <br>
the version for which it was built. By doing this , users ofthe
library have a way to help ensure that applications do not
accidentally load an imcompatible library. <br>
In addition, private sysmbols can be hidden entirely.<br>
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
When I first release the patch 5.9 -> 6.0 with the option
--with-abi-version=5, I want to be compatible with the existing
system, so I do the following test:<br>
<br>
$bitbake world core-image-sato-sdk<br>
<br>
tested it on the qemuarm, qemux86, qemux86-64 with multilib
(oe-core), and no error happened .<br>
<br>
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
When I second release the patch "drop the compatible option
--with-abi-version=5", because I want to introduces the feature <font
color="#3333ff">symbol-versioning<font color="#000000">, so I
droped the <br>
option --with-abi-version=5 , and I do the following test:<br>
<br>
$bitbake world core-image-sato-sdk<br>
<br>
tested it on the qemuarm, qemux86, qemux86-64 with multilib
(oe-core), and no error happened.<br>
<br>
Today, Robert let me test it on the following layers:<br>
<br>
/meta-openembedded/meta-oe <br>
/meta-openembedded/meta-networking<br>
</font></font><font color="#3333ff"><font color="#000000"><font
color="#3333ff"><font color="#000000">
/meta-openembedded/meta-meta-webserver</font></font><font
color="#3333ff"><font color="#000000"><i class="moz-txt-slash"><span
class="moz-txt-tag"><br>
</span></i></font></font><br>
so I add the layers to my build and run the following commands:<br>
<br>
$bitbake world<br>
<br>
It reported the following error:<br>
<font color="#3333ff"><br>
Summary: 15 tasks failed:<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-graphics/takao-fonts/takao-fonts_003.03.01.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-support/portaudio/portaudio-v19_svn.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-gnome/gtkhtml2/gtkhtml2_svn.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-python/recipes-devtools/python/python-cryptography-vectors_1.1.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-networking/recipes-support/geoip/geoip_1.6.6.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-networking/recipes-connectivity/ufw/ufw_0.33.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-support/ctapi-common/ctapi-common_1.1-11.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-python/recipes-devtools/python/python-decorator_4.0.2.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-python/recipes-connectivity/python-thrift/python-thrift_0.9.2.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-python/recipes-devtools/python/python-sqlalchemy_0.7.9.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-webserver/recipes-httpd/cherokee/cherokee_1.2.98.bb,
do_fetch<br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-graphics/ttf-fonts/ttf-mplus_027.bb,
do_fetch<br>
virtual:native:/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-support/uim/uim_1.8.6.bb,
do_install<br>
<font color="#cc0000">
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-connectivity/umip/umip_1.0.bb,
do_compile</font><br>
/buildarea/raid0/ddu/poky/meta-openembedded/meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.13.bb,
do_package_qa</font><br>
<br>
It seems the umip was affect by the ncurses version change. So I
went to the log.do_compile, the log file say:<br>
<br>
<font color="#cc0000">fatal error: gram.h : No such file or
directory<br>
compilation terminated</font><br>
<br>
So I think the ncurses version change didn't affect the whole
system. Then I release the patch "ncurses: drop the compatible
option"</font></font><font color="#3333ff"><font color="#000000"><i
class="moz-txt-slash"><span class="moz-txt-tag"><br>
</span><span class="moz-txt-tag"></span></i>-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
</font></font>
<div class="moz-cite-prefix">On 2016年01月21日 10:17, Khem Raj wrote:<br>
</div>
<blockquote
cite="mid:CAMKF1soSrq1P9ztt5_Uavc7e_jtHtR-PNzYH7PERUE3dJfgeaQ@mail.gmail.com"
type="cite">
<pre wrap="">On Wed, Jan 20, 2016 at 5:30 PM, Robert Yang <a class="moz-txt-link-rfc2396E" href="mailto:liezhi.yang@windriver.com"><liezhi.yang@windriver.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
I had talked with Dengke, we have upgraded ncurses to 6, so remove
--with-abi-version=5 seems better. He had tested world and sdk
build based on oe-core. He will test it based on meta-openembedded.
</pre>
</blockquote>
<pre wrap="">
we need to ensure that all apps using ncurses are able to work with
new APIs if we drop compatibility.
may be have ncurses5 package still around to provide backward compatibility.
</pre>
</blockquote>
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