tests/embedded: check that embedders can autogen using the hwloc embe…

…dded tarball

Build an embedded tarball from the original tarball and use it instead
for all tests.

The intend is to have our CI detect problems such as open-mpi/ompi#7363
whenever the list of non-embedded dist directories changes.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
(cherry picked from commit 9af4e4d361c0f9e0e44a587c4b9b364b724265a6)

tests/hwloc/embedded/run-embedded-tests.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # Copyright © 2010 Cisco Systems, Inc.  All rights reserved.
-# Copyright © 2019 Inria.  All rights reserved.
+# Copyright © 2019-2020 Inria.  All rights reserved.
 # See COPYING in top-level directory.
 #
 # Simple script to help test embedding:
@@ -78,17 +78,27 @@ print Got tarball: $tarball
 ver=`basename $tarball | sed -e 's/^hwloc-//' -e 's/\.tar\..*$//'`
 print Got version: $ver
 
-# Extract
+# Extract and build an embedded tarball
+print Removing the old standalone directory...
+rm -rf standalone
+mkdir standalone
+cd standalone
 print Extracting tarball...
-rm -rf hwloc-$ver
 if test "`echo $tarball | grep .tar.bz2`" != ""; then
-    try tar jxf $tarball
+    try tar jxf ../$tarball
 else
-    try tar zxf $tarball
+    try tar zxf ../$tarball
 fi
-
-print Removing old tree...
-rm -rf hwloc-tree
+cd hwloc-$ver
+print Building embedded tarball...
+try ./configure --enable-embedded-mode
+try make dist
+cd ../..
+
+# Extract embedded tarball for real use
+print Extracting the embedded tarball...
+rm -rf hwloc-$tree hwloc-$ver
+try tar jxf standalone/hwloc-$ver/hwloc-$ver.tar.bz2
 mv hwloc-$ver hwloc-tree
 
 # Autogen
@@ -107,16 +117,9 @@ cd ..
 rm -rf build
 
 # Now whack the tree and do a clean VPATH
-print Re-extracting tarball...
-rm -rf hwloc-$ver
-if test "`echo $tarball | grep .tar.bz2`" != ""; then
-    try tar jxf $tarball
-else
-    try tar zxf $tarball
-fi
-
-print Removing old tree...
-rm -rf hwloc-tree
+print Re-extracting the embedded tarball...
+rm -rf hwloc-tree hwloc-$ver
+try tar jxf standalone/hwloc-$ver/hwloc-$ver.tar.bz2
 mv hwloc-$ver hwloc-tree
 
 # Autogen