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gdb: specify where to find lzma libraries

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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@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=$(STAGING_DIR)/usr to GDB_CONF_OPTS fixes the
problem.

Credit-to: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Vicente Olivert Riera 2016-03-11 10:16:33 +00:00 committed by Peter Korsgaard
parent 29ac732a94
commit e6a29a4f3c
1 changed files with 1 additions and 0 deletions
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package/gdb/gdb.mk
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@ -120,6 +120,7 @@ endif
ifeq ($(BR2_PACKAGE_XZ),y)
GDB_CONF_OPTS += --with-lzma
GDB_CONF_OPTS += --with-liblzma-prefix=$(STAGING_DIR)/usr
GDB_DEPENDENCIES += xz
else
GDB_CONF_OPTS += --without-lzma