webkitgtk: Fix build for armv5

Detect atomics during configure

(From OE-Core rev: 424ffbde2111130137e307eb9e598ad50451c865)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-sato/webkit/webkitgtk/detect-atomics-during-configure.patch

@@ -0,0 +1,34 @@
+Taken from
+https://bugs.webkit.org/show_bug.cgi?id=161900
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Index: webkitgtk-2.16.1/Source/WTF/wtf/CMakeLists.txt
+===================================================================
+--- webkitgtk-2.16.1.orig/Source/WTF/wtf/CMakeLists.txt
++++ webkitgtk-2.16.1/Source/WTF/wtf/CMakeLists.txt
+@@ -182,7 +182,6 @@ set(WTF_HEADERS
+ 
+ set(WTF_SOURCES
+     Assertions.cpp
+-    Atomics.cpp
+     AutomaticThread.cpp
+     BitVector.cpp
+     ClockType.cpp
+@@ -301,6 +300,15 @@ if (NOT USE_SYSTEM_MALLOC)
+     list(APPEND WTF_LIBRARIES bmalloc)
+ endif ()
+ 
++file(WRITE ${CMAKE_BINARY_DIR}/test_atomics.cpp
++     "int main(void)\n"
++     "{ long long x = 1; return (int) __sync_add_and_fetch_8(&x, 1); }\n")
++try_compile(ATOMICS_BUILD_SUCCEEDED ${CMAKE_BINARY_DIR} ${CMAKE_BINARY_DIR}/test_atomics.cpp)
++if (NOT ATOMICS_BUILD_SUCCEEDED)
++    list(APPEND WTF_SOURCES Atomics.cpp)
++endif ()
++file(REMOVE ${CMAKE_BINARY_DIR}/test_atomics.cpp)
++
+ list(APPEND WTF_SOURCES
+     unicode/icu/CollatorICU.cpp
+ )

meta/recipes-sato/webkit/webkitgtk_2.16.1.bb

@@ -20,6 +20,7 @@ SRC_URI = "http://www.webkitgtk.org/releases/${BPN}-${PV}.tar.xz \
            file://x32_support.patch \
            file://cross-compile.patch \
            file://gcc7.patch \
+           file://detect-atomics-during-configure.patch \
            "
 SRC_URI[md5sum] = "d3bcf995a667fd9febb9ab991acf0ca7"
 SRC_URI[sha256sum] = "eb92383232328ce655b703c64370ed3795662479719ad1b4a869ed46769d2945"