[Buildroot] [git commit branch/2019.02.x] package/webkitgtk: disable JSC JIT for MIPSr6

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=ee784078dfd9644912f20c9177125a13e0c0d5db
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2019.02.x

Forcibly disable the JavaScriptCore JIT compilation support
for MIPSr6 processors, which are unsupported.

Fixes: http://autobuild.buildroot.net/results/3d21d3c3460cd85a4c828dd197929cdf17aaf4e0

Signed-off-by: Adrian Perez de Castro <aperez at igalia.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 5eb70cecedd03e08977a06bcc115b6a954d3da9a)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 1a6de2da7079f07a8d6f47472394206b095232af)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/webkitgtk/webkitgtk.mk | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/package/webkitgtk/webkitgtk.mk b/package/webkitgtk/webkitgtk.mk
index 8f8870c9b0..c8ad3c3382 100644
--- a/package/webkitgtk/webkitgtk.mk
+++ b/package/webkitgtk/webkitgtk.mk
@@ -95,4 +95,13 @@ else
 WEBKITGTK_CONF_OPTS += -DUSE_GSTREAMER_GL=OFF
 endif
 
+# JIT is not supported for MIPS r6, but the WebKit build system does not
+# have a check for these processors. Disable JIT forcibly here and use
+# the CLoop interpreter instead.
+#
+# Upstream bug: https://bugs.webkit.org/show_bug.cgi?id=191258
+ifeq ($(BR2_MIPS_CPU_MIPS32R6)$(BR2_MIPS_CPU_MIPS64R6),y)
+WEBKITGTK_CONF_OPTS += -DENABLE_JIT=OFF -DENABLE_C_LOOP=ON
+endif
+
 $(eval $(cmake-package))