diff --git a/webkit2gtk3-link-fix.patch b/webkit2gtk3-link-fix.patch
new file mode 100644
index 0000000..4d09611
--- /dev/null
+++ b/webkit2gtk3-link-fix.patch
@@ -0,0 +1,31 @@
+From 94396c05ce816b9f7245ac493367c84219cef407 Mon Sep 17 00:00:00 2001
+From: "ysuzuki@apple.com"
+ <ysuzuki@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
+Date: Thu, 2 Sep 2021 08:13:12 +0000
+Subject: [PATCH] Unreviewed, annotate executeJSCJITProbe with
+ REFERENCED_FROM_ASM WTF_INTERNAL
+
+* assembler/ProbeContext.h:
+
+git-svn-id: http://svn.webkit.org/repository/webkit/trunk@281911 268f45cc-cd09-0410-ab3c-d52691b4dbfc
+---
+ Source/JavaScriptCore/ChangeLog                | 6 ++++++
+ Source/JavaScriptCore/assembler/ProbeContext.h | 2 +-
+ 2 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/Source/JavaScriptCore/assembler/ProbeContext.h b/Source/JavaScriptCore/assembler/ProbeContext.h
+index 54db1ce832ef..36f430bcb509 100644
+--- a/Source/JavaScriptCore/assembler/ProbeContext.h
++++ b/Source/JavaScriptCore/assembler/ProbeContext.h
+@@ -249,7 +249,7 @@ private:
+     friend JS_EXPORT_PRIVATE void* probeStateForContext(Context&); // Not for general use. This should only be for writing tests.
+ };
+ 
+-extern "C" void executeJSCJITProbe(State*);
++extern "C" void executeJSCJITProbe(State*) REFERENCED_FROM_ASM WTF_INTERNAL;
+ 
+ } // namespace Probe
+ } // namespace JSC
+-- 
+2.33.0
+
diff --git a/webkit2gtk3.changes b/webkit2gtk3.changes
index 95f5e9d..52b6c43 100644
--- a/webkit2gtk3.changes
+++ b/webkit2gtk3.changes
@@ -1,12 +1,22 @@
+-------------------------------------------------------------------
+Tue Oct 26 22:10:23 UTC 2021 - Michael Gorse <mgorse@suse.com>
+
+- Add webkit2gtk3-link-fix.patch: taken from upstream, fixes the
+  build on SLE-15-SP4.
+- Use gcc10 package on SLE <= 15-SP4. Gcc 7 is currently the
+  default there.
+- Update gcc-c++ version requirement to match the cmake check.
+
 -------------------------------------------------------------------
 Thu Oct 21 20:07:32 UTC 2021 - Michael Gorse <mgorse@suse.com>
 
-- Update to version 2.34.1:
+- Update to version 2.34.1 (boo#1191937):
   + Update user agent browser versions.
   + Fix a crash with GTK >= 3.24.30.
   + Fix a crash when loading videos on reddit.
   + Fix file type detection when application calls
     g_desktop_app_info_set_as_default_for_extension() passing html.
+  + Security fixes: CVE-2021-42762.
 
 -------------------------------------------------------------------
 Wed Sep 29 10:16:33 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
@@ -23,8 +33,9 @@ Wed Sep 29 06:47:28 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
 -------------------------------------------------------------------
 Wed Sep 22 16:18:00 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
 
-- Update to version 2.34.0:
+- Update to version 2.34.0 (boo#1192063):
   + Fix another regression in JavaScriptCore on 32bit systems.
+  + Security fixes: CVE-2021-30846.
 
 -------------------------------------------------------------------
 Mon Sep 20 02:33:51 UTC 2021 - Michael Gorse <mgorse@suse.com>
@@ -92,7 +103,7 @@ Sun Sep 19 19:00:09 UTC 2021 - Michael Gorse <mgorse@suse.com>
 - Update to version 2.32.4 (boo#1190701):
   + Do not append .asc extension to downloaded text/plain files.
   + Fix several crashes and rendering issues.
-  + Security fixes: CVE-2021-30858.
+  + Security fixes: CVE-2021-30848, CVE-2021-30849, CVE-2021-30858.
 - Drop fix-lto.patch: fixed upstream.
 
 -------------------------------------------------------------------
diff --git a/webkit2gtk3.spec b/webkit2gtk3.spec
index f659809..f2ba16a 100644
--- a/webkit2gtk3.spec
+++ b/webkit2gtk3.spec
@@ -88,6 +88,8 @@ Source99:       webkit2gtk3.keyring
 Patch0:         no-forced-sse.patch
 # PATCH-FIX-UPSTREAM fix-warnings.patch mgorse@suse.com -- silence return-type warnings.
 Patch1:         fix-warnings.patch
+# PATCH-FIX-UPSTREAM webkit2gtk3-link-fix.patch mgorse@suse.com -- annotate executeJSCJITProbe.
+Patch2:         webkit2gtk3-link-fix.patch
 
 BuildRequires:  Mesa-libEGL-devel
 BuildRequires:  Mesa-libGL-devel
@@ -98,7 +100,11 @@ BuildRequires:  bison >= 2.3
 BuildRequires:  bubblewrap
 BuildRequires:  cmake
 BuildRequires:  enchant-devel
-BuildRequires:  gcc-c++ >= 4.9
+%if 0%{?sle_version} && 0%{?sle_version} <= 150400
+BuildRequires:  gcc10-c++ >= 4.9
+%else
+BuildRequires:  gcc-c++ >= 7.3
+%endif
 BuildRequires:  gobject-introspection-devel
 BuildRequires:  gperf >= 3.0.1
 BuildRequires:  hyphen-devel
@@ -344,6 +350,10 @@ export PYTHON=%{_bindir}/python3
 %cmake \
   -GNinja \
   -DCMAKE_BUILD_TYPE=Release \
+%if 0%{?sle_version} && 0%{?sle_version} <= 150400
+  -DCMAKE_C_COMPILER=gcc-10 \
+  -DCMAKE_CXX_COMPILER=g++-10 \
+%endif
   -DLIBEXEC_INSTALL_DIR=%{_libexecdir}/libwebkit2gtk%{_wk2sover} \
   -DPORT=GTK \
 %if "%{flavor}" == "gtk4"