[Buildroot] [PATCH] gdb: specify where to find lzma libraries

Peter Korsgaard peter at korsgaard.com
Thu Mar 10 19:51:56 UTC 2016


>>>>> "Vicente" == Vicente Olivert Riera <Vincent.Riera at imgtec.com> writes:

 > As reported in...
 >   https://bugs.busybox.net/show_bug.cgi?id=8786

 > ..., gdb fails to build with xz and expat support at the same time when
 > using an external toolchain.

 > This is how the problem is shown:

 > checking for liblzma... no
 > configure: error: missing liblzma for --with-lzma

 > And having a deeper look in gdb/config.log we can se a message like this
 > one:

 > /lib64/liblzma.so.5: undefined reference to `clock_gettime at GLIBC_2.17'

 > As Thomas said in the bug report quoted above, that error is related to
 > the fact that it find the host's lzma.

 > Adding --with-lzma-prefix=$(HOST_DIR)/usr to GDB_CONF_OPTS fixes the
 > problem.

 > Credit-to: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
 > Signed-off-by: Vicente Olivert Riera <Vincent.Riera at imgtec.com>
 > ---
 >  package/gdb/gdb.mk | 1 +
 >  1 file changed, 1 insertion(+)

 > diff --git a/package/gdb/gdb.mk b/package/gdb/gdb.mk
 > index 32d52eb..58cd7502 100644
 > --- a/package/gdb/gdb.mk
 > +++ b/package/gdb/gdb.mk
 > @@ -120,6 +120,7 @@ endif
 
 >  ifeq ($(BR2_PACKAGE_XZ),y)
 >  GDB_CONF_OPTS += --with-lzma
 > +GDB_CONF_OPTS += --with-liblzma-prefix=$(HOST_DIR)/usr

But GDB_CONF_OPTS is for gdb for the target, so HOST_DIR/usr doesn't
seem right?

-- 
Bye, Peter Korsgaard



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