Re: [Ltib] Adding sub-selection to package issue

[Stuart Hughes]

Hi Mike,

Variables do not get exported automatically to the environment.  If you 
want something exported, it needs to have a name that includes: 
_PRECONFIG  or _WANT_  or SYSCFG_

So try changing the symbol to:  PKG_BOOST_HEADER_ONLY_PRECONFIG
or maybe PKG_BOOST_WANT_HEADER_ONLY

Regards, Stuart

On 28/10/11 12:55, Mike Goins wrote:
> I was attempting to add a sub-selection to a package to toggle the
> behavior of the build/install in a package spec file but having an
> issue getting the PKG variable during the spec file ops.  I used the
> symlink toggle from bash as an example.  My goal is to modify the
> boost installation to get a "header-only" installation.
>
>
> What I have done (trimmed out the relevant sections for brevity.
>
> Added an entry in packages.lkc:
>
> config PKG_BOOST_HEADER_ONLY
>      depends PKG_BOOST
>      bool "boost header only install"
>      help
>         Header only option for boost install
>
>
> Modified the boost spec file to check the value of that config:
>
>
> %Build
> if [ "$PKG_BOOST_HEADER_ONLY" = "y" ]
> then
> echo "Headers only, no build"
> else
> export PATH=$UNSPOOF_PATH
> ./bootstrap.sh  --prefix=$RPM_BUILD_ROOT/%{pfx}/usr
> --libdir=$RPM_BUILD_ROOT/%{pfx}/usr/lib --without-icu
> export PATH=$SPOOF_PATH
> echo "using gcc : $GNUTARCH : $CXX  ; ">  tools/build/v2/user-config.jam
> ./bjam -d2 -q \
> --toolset=gcc \
> --layout=system \
> --without-python \
> -sZLIB_INCLUDE=$DEV_IMAGE/usr/include \
> -sZLIB_LIBPATH=$DEV_IMAGE/usr/lib \
> -sBZIP2_INCLUDE=$DEV_IMAGE/usr/include \
> -sBZIP2_LIBPATH=$DEV_IMAGE/usr/lib \
> stage
> fi
>
> (%Install is modified similarly but fails on the above already)
>
>
> I added the check for rebuild in ltib itself:
> # re-build the key (lhs) if any of the dependents (rhs) in the list have changed
> $config_deps = {
> ....
>             PKG_BOOST    =>  [ qw/PKG_BOOST_HEADER_ONLY/ ],
> ....
>
>
> In the debug output I see the variable is getting set:
>
> ...
> PKG_BOOST_HEADER_ONLY=y
> ...
> PKG_ETHTOOL=
> SYSCFG_TMPFS=tmpfs
> PKG_BOOST=y
> PKG_DISTCC=
> PKG_BLUEZ_UTILS=
> PKG_LIBPCAP=
> ...
>
>
> The spec file is getting parsed correctly in the debug output:
>
> Processing: boost
> ===================
> ...
> install=rm -rf $RPM_BUILD_ROOT
> mkdir -p $RPM_BUILD_ROOT//opt/freescale/rootfs/i386/usr/include/boost
> if [ "$PKG_BOOST_HEADER_ONLY" = "y" ]
> then
> cp -a boost $RPM_BUILD_ROOT//opt/freescale/rootfs/i386/usr/include/
> else
> ./bjam -d2 -q \
> --toolset=gcc \
> --layout=system \
> --without-python \
> -sZLIB_INCLUDE=$DEV_IMAGE/include \
> -sBZIP2_INCLUDE=$DEV_IMAGE/include \
> install
> fi
> ...
>
> But when processing the spec file:
> ...
> + umask 022
> + cd /home/mike/rpm/BUILD
> + cd boost_1_43_0
> + '[' '' = y ']'
> + export PATH=.....
>
>
> The '' = y test is missing the value for the variable PKG_BOOST_HEADER_ONLY
>
> Does this config have to be somewhere else to get it visible in the
> rpm spec file processing?  Is there something else I can check/debug
> out?
>
> Thanks
>
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