[OE-core] [PATCH] json-c: Make implicit-fallthrough only a warning for compilation under icecc

[Douglas Royds]

icecc preprocesses source files locally before shipping them off to be compiled
on remote hosts. This preprocessing removes comments, including /* fallthough */
comments in switch statements that normally prevent the implicit-fallthrough
warning. Rather than turning off -Werror completely, just reduce
implicit-fallthrough to a warning only.

See https://github.com/icecc/icecream/issues/419

Signed-off-by: Douglas Royds <douglas.royds at taitradio.com>
---
 meta/recipes-devtools/json-c/json-c_0.13.1.bb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-devtools/json-c/json-c_0.13.1.bb b/meta/recipes-devtools/json-c/json-c_0.13.1.bb
index 5b10e68297..ddda7375d3 100644
--- a/meta/recipes-devtools/json-c/json-c_0.13.1.bb
+++ b/meta/recipes-devtools/json-c/json-c_0.13.1.bb
@@ -22,6 +22,9 @@ inherit autotools
 
 EXTRA_OECONF = "--enable-rdrand"
 
+TARGET_CPPFLAGS =+ "-Wno-error=implicit-fallthrough"
+BUILD_CPPFLAGS =+ "-Wno-error=implicit-fallthrough"
+
 do_configure_prepend() {
     # Clean up autoconf cruft that should not be in the tarball
     rm -f ${S}/config.status
-- 
2.17.1