Re: Unannounced soname bump: libcapstone.so.3 -> libcapstone.so.4

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Am Freitag, den 11.01.2019, 09:43 +0000 schrieb Daniel P. Berrangé:
> On Fri, Jan 11, 2019 at 09:40:59AM +0000, Richard W.M. Jones wrote:
> > On Fri, Jan 11, 2019 at 09:30:29AM +0000, Daniel P. Berrangé wrote:
> > > On Fri, Jan 11, 2019 at 09:24:12AM +0000, Richard W.M. Jones
> > > wrote:
> > > > On Fri, Jan 11, 2019 at 09:14:29AM +0000, Richard W.M. Jones
> > > > wrote:
> > > > > https://koji.fedoraproject.org/koji/buildinfo?buildID=1178711
> > > > > 
> > > > > This broke qemu, and indirectly libvirt.
> > > > > 
> > > > > I will submit a new build for qemu to see if that fixes
> > > > > things.  I
> > > > > didn't look closely to see if there are API changes.
> > > > 
> > > > The rebuild failed - it looks like there are some changes to
> > > > capstone,
> > > > at least the location of the <capstone.h> headers file, which
> > > > break
> > > > qemu source.  I'll see if there's anything we can backport from
> > > > upstream.
> > > 
> > > The headers haven't moved. It looks like the  capstone pkgconfig
> > > file is
> > > broken.
> > > 
> > > In 3.0.5 it had
> > > 
> > >   includedir=/usr/include/capstone
> > > 
> > > In 4.0.1 is has
> > > 
> > >   includedir=/usr/include
> > 
> > While I don't disagree that this file looks broken, it does seem as
> > if
> > capstone wants you to use <capstone/capstone.h>.  See the tests, for
> > example:
> > 
> > https://github.com/aquynh/capstone/blob/master/tests/test_basic.c
> > 
> > The below patch fixes qemu when using the system capstone, but
> > probably breaks when using the git-submodule capstone.  However I'll
> > drop this in as a *temporary* workaround to get Fedora building.
> 
> We should really just fix the pkg-config file in capstone locally.
> 
> I've filed a bug in upstream capstone, as they really do intend
> includedir=/usr/include/capstone to be used.
> 
>   https://github.com/aquynh/capstone/issues/1339
> 
> 
> Regards,
> Daniel

Index: capstone-4.0.1/Makefile
===================================================================
--- capstone-4.0.1.orig/Makefile
+++ capstone-4.0.1/Makefile
@@ -517,5 +517,5 @@ define generate-pkgcfg
 	echo 'includedir=$(INCDIR)' >> $(PKGCFGF)
 	echo 'archive=$${libdir}/libcapstone.a' >> $(PKGCFGF)
 	echo 'Libs: -L$${libdir} -lcapstone' >> $(PKGCFGF)
-	echo 'Cflags: -I$${includedir}' >> $(PKGCFGF)
+	echo 'Cflags: -I$${includedir}/$(LIBNAME)' >> $(PKGCFGF)
 endef

--

This patch should fix the pkgconfig file generated by Makefile.

Björn

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