webkit2gtk3/no-forced-sse.patch

From: Jan Engelhardt <jengelh@inai.de>
Date: 2020-01-30 14:15:51.612533365 +0100

cmake tests whether the compiler can emit SSE, which is the wrongest of all
options. (At the very least, a build system would check the buildhost's actual
CPU feature set; while not great, there are convincable usecases for doing
that.)

Disable unconditional emission of -msse2 into the command line.
On x86_64 where SSE2 is always available, gcc already implies -msse2
anyway, so there should not be anything lost by removing this block
of makefilery.

---
 Source/cmake/WebKitCompilerFlags.cmake |    9 ---------
 1 file changed, 9 deletions(-)

Index: webkitgtk-2.26.3/Source/cmake/WebKitCompilerFlags.cmake
===================================================================
--- webkitgtk-2.26.3.orig/Source/cmake/WebKitCompilerFlags.cmake
+++ webkitgtk-2.26.3/Source/cmake/WebKitCompilerFlags.cmake
@@ -137,15 +137,6 @@ if (COMPILER_IS_GCC_OR_CLANG)
     if (CMAKE_COMPILER_IS_GNUCXX)
         WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-Wno-expansion-to-defined)
     endif ()
-
-    # Force SSE2 fp on x86 builds.
-    if (WTF_CPU_X86 AND NOT CMAKE_CROSSCOMPILING)
-        WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-msse2 -mfpmath=sse)
-        include(DetectSSE2)
-        if (NOT SSE2_SUPPORT_FOUND)
-            message(FATAL_ERROR "SSE2 support is required to compile WebKit")
-        endif ()
-    endif ()
 endif ()
 
 if (COMPILER_IS_GCC_OR_CLANG AND NOT MSVC)