[OE-core] [PATCH] package_rpm: Set _tmppath to avoid races over tmp files

[Richard Purdie]

Occasionally we keep seeing "unable to open temp file" messages during
do_package_write_rpm tasks. This appears to happen when multiple
processes are writing rpm files and is likely due to using the
shared system temp directory. This patch changes the tmp path
to the package work directory meaning conflicts should become
a non-issue.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/package_rpm.bbclass b/meta/classes/package_rpm.bbclass
index 2ace053..75e4f2d 100644
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -955,6 +955,7 @@ python do_package_rpm () {
 	cmd = cmd + " --define '_unpackaged_files_terminate_build 0'"
 	cmd = cmd + " --define 'debug_package %{nil}'"
 	cmd = cmd + " --define '_rpmfc_magic_path " + magicfile + "'"
+	cmd = cmd + " --define '_tmppath " + workdir + "'"
 	cmd = cmd + " -bb " + outspecfile
 
 	# Build the rpm package!