json-c: Backport --disable-werror patch to allow compilation under icecc

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 an implicit-fallthrough
warning, see https://github.com/icecc/icecream/issues/419

Rather than turning off -Werror, the upstream project has implemented a
configure option, --disable-werror, in response to Ross's
https://github.com/json-c/json-c/issues/489

This patch from
https://github.com/json-c/json-c/commit/21c886534f8927fdc0fb5f8647394f3e0e0874b8

Upstream-Status: Backport [Not yet released]
(From OE-Core rev: c668b467415599cb95d93a231eb51d77137a57e4)

Signed-off-by: Douglas Royds <douglas.royds@taitradio.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/meta/recipes-devtools/json-c/json-c/add-disable-werror-option-to-configure.patch b/meta/recipes-devtools/json-c/json-c/add-disable-werror-option-to-configure.patch
new file mode 100644
index 0000000000..0c20c8458a
--- /dev/null
+++ b/meta/recipes-devtools/json-c/json-c/add-disable-werror-option-to-configure.patch
@@ -0,0 +1,45 @@
+json-c: Backport --disable-werror patch to allow compilation under icecc
+
+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 an implicit-fallthrough
+warning, see https://github.com/icecc/icecream/issues/419
+
+Rather than turning off -Werror, the upstream project has implemented a
+configure option, --disable-werror, in response to Ross's
+https://github.com/json-c/json-c/issues/489
+
+This patch from
+https://github.com/json-c/json-c/commit/21c886534f8927fdc0fb5f8647394f3e0e0874b8
+
+Upstream-Status: Backport [Not yet released]
+Signed-off-by: Douglas Royds <douglas.royds@taitradio.com>
+
+From 21c886534f8927fdc0fb5f8647394f3e0e0874b8 Mon Sep 17 00:00:00 2001
+From: Pierce Lopez <pierce.lopez@gmail.com>
+Date: Sun, 9 Jun 2019 10:52:08 -0400
+Subject: [PATCH] build: add --disable-werror option to configure
+
+to omit -Werror compiler option
+---
+ configure.ac | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 272ea6af9c..798fd5b747 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -165,7 +165,12 @@ AS_IF([test "x$enable_Bsymbolic" = "xcheck"],
+ AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions])
+ AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)
+ 
+-AX_APPEND_COMPILE_FLAGS([-Wall -Werror -Wcast-qual -Wno-error=deprecated-declarations])
++AC_ARG_ENABLE([werror],
++    AS_HELP_STRING([--disable-werror], [avoid treating compiler warnings as fatal errors]))
++
++AS_IF([test "x$enable_werror" != "xno"], [AX_APPEND_COMPILE_FLAGS([-Werror])])
++
++AX_APPEND_COMPILE_FLAGS([-Wall -Wcast-qual -Wno-error=deprecated-declarations])
+ AX_APPEND_COMPILE_FLAGS([-Wextra -Wwrite-string -Wno-unused-parameter])
+ AX_APPEND_COMPILE_FLAGS([-D_GNU_SOURCE])
+