[OE-core] [PATCH 13/45] oeqa/selftest/buildoptions: Improve ccache test

[Armin Kuster]

From: Richard Purdie <richard.purdie at linuxfoundation.org>

This test occisionally fails as m4 doesn't recompile, meaning the logfile test
then doesn't find mention of ccache.

To ensure m4 does recompile, clean m4 before force compiling it.

(Reading the test is confusing due to the test cleanup also involving a clean)

(From OE-Core rev: 6e0b9214a0d57ed45a5df0ba5c9887a9045b89b1)

(From OE-Core rev: b729a46820cce38b3d500271df19bdaf31973140)

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/lib/oeqa/selftest/cases/buildoptions.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/lib/oeqa/selftest/cases/buildoptions.py b/meta/lib/oeqa/selftest/cases/buildoptions.py
index 406b7e8..c406e95 100644
--- a/meta/lib/oeqa/selftest/cases/buildoptions.py
+++ b/meta/lib/oeqa/selftest/cases/buildoptions.py
@@ -38,6 +38,7 @@ class ImageOptionsTests(OESelftestTestCase):
         self.assertTrue(os.path.isfile(p), msg = "No ccache found (%s)" % p)
         self.write_config('INHERIT += "ccache"')
         self.add_command_to_tearDown('bitbake -c clean m4')
+        bitbake("m4 -c clean")
         bitbake("m4 -f -c compile")
         log_compile = os.path.join(get_bb_var("WORKDIR","m4"), "temp/log.do_compile")
         with open(log_compile, "r") as f:
-- 
2.7.4