Hi Joshua,

This one causes the following 2 recipes failed to build:

meta-openembedded/meta-networking/recipes-support/libtalloc/libtalloc_2.1.10.bb:do_configure
meta-openembedded/meta-networking/recipes-support/libtdb/libtdb_1.3.15.bb:do_configure

The error messages are similar:

File: '/usr/lib/python3.4/subprocess.py', lineno: 1457, function: _execute_child
     1453:                                # The error must be from chdir(cwd).
     1454:                                err_msg += ': ' + repr(cwd)
     1455:                            else:
     1456:                                err_msg += ': ' + repr(orig_executable)
 *** 1457:                    raise child_exception_type(errno_num, err_msg)
     1458:                raise child_exception_type(err_msg)
     1459:
     1460:
     1461:        def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED,
Exception: FileNotFoundError: [Errno 2] No such file or directory: '/path/to/tmp-glibc/work/i586-wrs-linux/libtdb/1.3.15-r0/tdb-1.3.15/waf'

// Robert

On 02/01/2018 03:49 AM, Joshua Watt wrote:

waf requires that the current working directory be the project root (in
this case ${S} when it is invoked. The check to get the waf version was
being executed as a prefunc for do_configure, which meant it was
executed before the current working directory was switched to ${S}, and
thus would fail with some recipes. Fix this by changing to ${S} before
executing "waf --version"

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
---
  meta/classes/waf.bbclass | 19 ++++++++++---------
  1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/meta/classes/waf.bbclass b/meta/classes/waf.bbclass
index c3e744e5dec..bdbdc56767c 100644
--- a/meta/classes/waf.bbclass
+++ b/meta/classes/waf.bbclass
@@ -26,16 +26,17 @@ def get_waf_parallel_make(d):
      return ""
    python waf_preconfigure() {
+    import subprocess
      from distutils.version import StrictVersion
-    srcsubdir = d.getVar('S')
-    wafbin = os.path.join(srcsubdir, 'waf')
-    status, result = oe.utils.getstatusoutput(wafbin + " --version")
-    if status != 0:
-        bb.warn("Unable to execute waf --version, exit code %d. Assuming waf version without bindir/libdir support." % status)
-        return
-    version = result.split()[1]
-    if StrictVersion(version) >= StrictVersion("1.8.7"):
-        d.setVar("WAF_EXTRA_CONF", "--bindir=${bindir} --libdir=${libdir}")
+    subsrcdir = d.getVar('S')
+    wafbin = os.path.join(subsrcdir, 'waf')
+    try:
+        result = subprocess.check_output([wafbin, '--version'], cwd=subsrcdir, stderr=subprocess.STDOUT)
+        version = result.decode('utf-8').split()[1]
+        if StrictVersion(version) >= StrictVersion("1.8.7"):
+            d.setVar("WAF_EXTRA_CONF", "--bindir=${bindir} --libdir=${libdir}")
+    except subprocess.CalledProcessError as e:
+        bb.warn("Unable to execute waf --version, exit code %d. Assuming waf version without bindir/libdir support." % e.returncode)
  }
    do_configure[prefuncs] += "waf_preconfigure"