apr: remove conflict with ccache

If ccache is enabled, compiling apr-utils fails with the following error
messages because libtool is confused by the "ccache gcc" appearing on
the command line. Disable ccache for apr, so that ccache don't get
enabled in all software using apr's rules.mk.

The error message from apr-utils-native:

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/meta/recipes-support/apr/apr_1.5.2.bb b/meta/recipes-support/apr/apr_1.5.2.bb
index e12a17625ff9bbe61853aedb6e04e553d63c5f9d..1c61e84e536271ecb9ab9f600a4091135e7920bb 100644 (file)
--- a/meta/recipes-support/apr/apr_1.5.2.bb
+++ b/meta/recipes-support/apr/apr_1.5.2.bb
@@ -32,6 +32,11 @@ CACHED_CONFIGUREVARS += "apr_cv_mutex_recursive=yes"
 #
 CACHED_CONFIGUREVARS += "ac_cv_header_netinet_sctp_h=no ac_cv_header_netinet_sctp_uio_h=no"
 
+# Otherwise libtool fails to compile apr-utils
+# x86_64-linux-libtool: compile: unable to infer tagged configuration
+# x86_64-linux-libtool:   error: specify a tag with '--tag'
+CCACHE = ""
+
 do_configure_prepend() {
        # Avoid absolute paths for grep since it causes failures
        # when using sstate between different hosts with different