[OE-core] [PATCH] base.bbclass: clean up dead symlink when handling hosttools

[Chen Qi]

When some hosttool is a dead symlink, bitbake any recipe will
fail with error like below.

  FileExistsError: [Errno 17] File exists: '/usr/bin/chrpath' -> '/path/to/builddir/tmp-glibc/hosttools/chrpath'

So we remove dead symlink under hostools/ directory to avoid
such error.

Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
---
 meta/classes/base.bbclass | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 2fdab74f4b..3db8527d04 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -127,6 +127,9 @@ def setup_hosttools_dir(dest, toolsvar, d, fatal=True):
     for tool in tools:
         desttool = os.path.join(dest, tool)
         if not os.path.exists(desttool):
+            # clean up dead symlink
+            if os.path.islink(desttool):
+                os.unlink(desttool)
             srctool = bb.utils.which(path, tool, executable=True)
             # gcc/g++ may link to ccache on some hosts, e.g.,
             # /usr/local/bin/ccache/gcc -> /usr/bin/ccache, then which(gcc)
-- 
2.17.1