[oe] RFC: Library file extensions

[Paul Sokolovsky]

Hello,

On Thu, 21 Feb 2008 10:21:16 +0000
Richard Purdie <rpurdie at rpsys.net> wrote:

> Hi,
> 
> As some may have gathered I made some experiments with using Poky to
> cross compile things to run on the iPodTouch which is
> arm-apple-darwin. THe good news is they were successful however
> Darwin creates some interesting challenges for OE, one of them is the
> dynamic libraries being called *.dylib, not *.so.

The easiest way to account for would be to introduce something short
like:

SO ?= "so"

But if, as look at the patch below shows, we need to actually account
for cases like .so.<ver> vs .<ver>.dylib, then apparently it's the way
to go.

> 
> I've had the following patch in Poky to assist with this problem. It
> would need to be rolled out over all .bb files with custom FILES
> eventually but it has the advantage that can happen over time so the
> question is more whether this is a good idea and whether the approach
> is acceptable?
> 
> We would probably hit the same issue with windows .dll files and this
> solution would solve that too.

Yes, I actually hit that when doing win32 mini-port, and thought what
chore it would be to get such configurable support upstream, and update
all cases .so is used ;-). So, I just used native unix scheme for DLLs.

> 
> Comments welcome...
> 
> Cheers,
> 
> Richard
> 
> #
> # old_revision [5fb8cfe19138b98226fe92044d302c9379dad84d]
> #
> # patch "conf/bitbake.conf"
> #  from [a605bd5d4d48054b72d21c74a922a9a0a2d12a76]
> #    to [1655c26111af10134f07eafd1e29ef00d8cd8f5f]
> #
> ============================================================
> --- conf/bitbake.conf	a605bd5d4d48054b72d21c74a922a9a0a2d12a76
> +++ conf/bitbake.conf	1655c26111af10134f07eafd1e29ef00d8cd8f5f
> @@ -157,12 +157,17 @@ MULTI_PROVIDER_WHITELIST = "virtual/libi
>  
>  MULTI_PROVIDER_WHITELIST = "virtual/libintl"
>  
> +SOLIBS = ".so.*"
> +SOLIBS_darwin = ".*.dylib"
> +SOLIBSDEV = ".so"
> +SOLIBSDEV_darwin = ".dylib"
> +
>  PACKAGES = "${PN}-dbg ${PN} ${PN}-doc ${PN}-dev ${PN}-locale"
>  FILES = ""
>  
> -FILES_${PN} = "${bindir}/* ${sbindir}/* ${libexecdir}/*
> ${libdir}/lib*.so.* \ +FILES_${PN} = "${bindir}/* ${sbindir}/*
> ${libexecdir}/* ${libdir}/lib*${SOLIBS} \ ${sysconfdir}
> ${sharedstatedir} ${localstatedir} \
> -            ${base_bindir}/* ${base_sbindir}/* ${base_libdir}/*.so*
> ${datadir}/${PN} ${libdir}/${PN}/* \
> +            ${base_bindir}/* ${base_sbindir}/*
> ${base_libdir}/${SOLIBS} ${datadir}/${PN} ${libdir}/${PN}/* \
> ${datadir}/pixmaps ${datadir}/applications \ ${datadir}/idl
> ${datadir}/omf ${datadir}/sounds \ ${libdir}/bonobo/servers"
> @@ -171,7 +176,7 @@ SECTION_${PN}-doc = "doc"
>              ${datadir}/gnome/help"
>  SECTION_${PN}-doc = "doc"
>  
> -FILES_${PN}-dev = "${includedir} ${libdir}/lib*.so ${libdir}/*.la \
> +FILES_${PN}-dev = "${includedir} ${libdir}/lib*${SOLIBSDEV}
> ${libdir}/*.la \ ${libdir}/*.a ${libdir}/*.o ${libdir}/pkgconfig \
>                  ${base_libdir}/*.a ${base_libdir}/*.o
> ${datadir}/aclocal" SECTION_${PN}-dev = "devel"
> 
> 
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-- 
Best regards,
 Paul                          mailto:pmiscml at gmail.com