[Buildroot] [PATCH] bctoolbox: fix typos and logic error

[Jörg Krause]

On Tue, 2017-02-14 at 16:39 +0100, Waldemar Brodkorb wrote:
> Hi,
> Jörg Krause wrote,
> 
> > Hi Waldemar,
> > 
> > On Tue, 2017-02-14 at 10:01 +0100, Waldemar Brodkorb wrote:
> > > To get the directory path from the library name you need to
> > > use a single filename. Fix typo in variable name.
> > > 
> > > This fixes the ortp autobuild errors which uses the broken
> > > pkgconfig
> > > file
> > > from bctoolbox.
> > > 
> > > Fixes:
> > >   http://autobuild.buildroot.net/results/37d5625df4be11ccdc063871
> > > e9f6
> > > e13d5f59fb52
> > >   http://autobuild.buildroot.net/results/1999c841fae41f860f00747a
> > > 3623
> > > 27cb2857e687
> > > 
> > > Signed-off-by: Waldemar Brodkorb <wbx at openadk.org>
> > > ---
> > >  package/bctoolbox/0001-fix-typo.patch | 18 ++++++++++++++++++
> > >  1 file changed, 18 insertions(+)
> > >  create mode 100644 package/bctoolbox/0001-fix-typo.patch
> > > 
> > > diff --git a/package/bctoolbox/0001-fix-typo.patch
> > > b/package/bctoolbox/0001-fix-typo.patch
> > > new file mode 100644
> > > index 0000000..b94daee
> > > --- /dev/null
> > > +++ b/package/bctoolbox/0001-fix-typo.patch
> > > @@ -0,0 +1,18 @@
> > > +Fix a typo in the variable name. Only check path for a single
> > > library name.
> > > +
> > > +Signed-off-by: Waldemar Brodkorb <wbx at openadk.org> 
> > > +
> > > +diff -Nur bctoolbox-0.4.0.orig/CMakeLists.txt bctoolbox-
> > > 0.4.0/CMakeLists.txt
> > > +--- bctoolbox-0.4.0.orig/CMakeLists.txt	2016-10-06
> > > 17:30:41.000000000 +0200
> > > ++++ bctoolbox-0.4.0/CMakeLists.txt	2017-02-13
> > > 23:30:38.641288032 +0100
> > > +@@ -103,8 +103,8 @@
> > > + endif()
> > > + 
> > > + if(MBEDTLS_FOUND)
> > > +-	get_filename_component(mbedtls_library_path
> > > "${MBEDTLS_LIBRARIES}" PATH)
> > > +-	set(LIBS_PRIVATE "${LIBS_PRIVATE}
> > > -L${mbedlts_library_path}")
> > > ++	get_filename_component(mbedtls_library_path
> > > "${MBEDTLS_LIBRARY}" PATH)
> > > ++	set(LIBS_PRIVATE "${LIBS_PRIVATE}
> > > -L${mbedtls_library_path}")
> > > + endif()
> > > + if(POLARSSL_FOUND)
> > > + 	get_filename_component(polarssl_library_path
> > > "${POLARSSL_LIBRARIES}" PATH)
> > 
> > With this fix applied the bctoolbox pkg-config 'Libs.private:'
> > value is
> > set to:
> > 
> > """
> > Libs.private:  -L/mnt/data/git/buildroot/output/host/usr/arm-
> > buildroot-
> > linux-uclibcgnueabi/sysroot/usr/lib32
> > """
> > 
> > No mbedtls libraries are included here.
> > 
> > And the flag 'BCTOOLBOX_LIBS' in ortp is set to:
> > 
> > """
> > -L/mnt/data/git/buildroot/output/host/usr/arm-buildroot-linux-
> > uclibcgnueabi/sysroot/usr/lib -lbctoolbox
> > -L/mnt/data/git/buildroot/output/host/usr/ar"\
> > "m-buildroot-linux-uclibcgnueabi/sysroot/usr/lib32
> > """
> > 
> > From my understanding, all the three mbedtls libraries
> > libmbedcrypto,
> > libmbedx509, and libmbedtls should be added to the linker flags and
> > therefore to 'Libs.private' in the pkg-config file, right?
> 
> I was only looking into the ortp build errors with complete empty -L
> . But you are right
> actually we might need to add -lmbedx509 -lmbedtls -lmbedcrypto
> to fix any static linking issues.
> 
> I think upstream does add some -l for the polarssl case.
> I am not really using this packages, just want to minimize my
> architecture related build errors :)
> 
> Do you have a chance to suggest a better fix and test with static
> linking?

>From my understanding of pkg-config, 'Libs.private' should be:

"""
Libs.private:  -lmbedtls -lmbedcrypto -lmbedx509
"""

And how to set it in CMakeLists.txt:

"""
if(MBEDTLS_FOUND)
	set(LIBS_PRIVATE "${LIBS_PRIVATE} -lmbedtls -lmbedcrypto
-lmbedx509")
endif()
if(POLARSSL_FOUND)
	set(LIBS_PRIVATE "${LIBS_PRIVATE} -lpolarssl")
endif()
"""

This way pkg-config (used in ortp) sets 'BCTOOLBOX_LIBS' to:

"""
-L/mnt/data/git/buildroot/output/host/usr/arm-buildroot-linux-
uclibcgnueabi/sysroot/usr/lib -lbctoolbox -lmbedtls -lmbedcrypto
-lmbedx509
"""

.. which should be correct.

Jörg