diff --git a/jerryscript-3.0.0-no-werror.patch b/jerryscript-3.0.0-no-werror.patch
new file mode 100644
index 0000000..168a1ae
--- /dev/null
+++ b/jerryscript-3.0.0-no-werror.patch
@@ -0,0 +1,20 @@
+https://bugs.gentoo.org/840263
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -176,7 +176,6 @@
+ macro(jerry_add_compile_warnings)
+   foreach(_warning ${ARGV})
+     jerry_add_compile_flags(-W${_warning})
+-    jerry_add_compile_flags(-Werror=${_warning})
+   endforeach()
+ endmacro()
+ 
+@@ -224,7 +223,7 @@
+   if(NOT "${PLATFORM}" STREQUAL "WINDOWS")
+     jerry_add_compile_warnings(conversion)
+   endif()
+-  jerry_add_compile_flags(-Wno-stack-protector -Wno-attributes -Werror)
++  jerry_add_compile_flags(-Wno-stack-protector -Wno-attributes)
+ endif()
+ 
+ if(USING_GCC)
diff --git a/jerryscript.spec b/jerryscript.spec
index fd1dd03..ddc31b2 100644
--- a/jerryscript.spec
+++ b/jerryscript.spec
@@ -42,11 +42,13 @@ Libraries and header files for %{name}.
 %prep
 %autosetup -p1
 
-	find . -name CMakeLists.txt -print0 | xargs -0 sed -i \
-		-e "s:lib/pkgconfig:%{_libdir}/pkgconfig:" \
-		-e "s:DESTINATION lib):DESTINATION %{_libdir}):"
-	find . -name '*.pc.in' -print0 | xargs -0 sed -i \
-		-e "s|/lib\$|/%{_libdir}|"
+# fixes from: https://gitweb.gentoo.org/repo/gentoo.git/tree/dev-lang/jerryscript/jerryscript-3.0.0.ebuild#n27
+find . -name CMakeLists.txt -print0 | xargs -0 sed -i \
+	-e "s:lib/pkgconfig:%{_libdir}/pkgconfig:" \
+	-e "s:DESTINATION lib):DESTINATION %{_libdir}):"
+
+find . -name '*.pc.in' -print0 | xargs -0 sed -i \
+	-e "s|/lib\$|/%{_libdir}|"
 
 %build
 mkdir build && cd build