diff --git a/recipes-misc/recipes-multimedia/zynaddsubfx/files/0005-Set-UI-optimization-to-O1-explicitly.patch b/recipes-misc/recipes-multimedia/zynaddsubfx/files/0005-Set-UI-optimization-to-O1-explicitly.patch
new file mode 100644
index 00000000..d3285ada
--- /dev/null
+++ b/recipes-misc/recipes-multimedia/zynaddsubfx/files/0005-Set-UI-optimization-to-O1-explicitly.patch
@@ -0,0 +1,34 @@
+From ffc923d2edf0646cda38a816d8a03d38e5aa67ac Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@googlemail.com>
+Date: Tue, 20 Jun 2017 00:27:31 +0200
+Subject: [PATCH] Set UI optimization to -O1 explicitly
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+at least on ARM we see segfaults for higher optimizations
+
+Upstream-Status: Pending
+
+Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
+---
+ src/UI/CMakeLists.txt | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/UI/CMakeLists.txt b/src/UI/CMakeLists.txt
+index 98b3d14..73c3a43 100644
+--- a/src/UI/CMakeLists.txt
++++ b/src/UI/CMakeLists.txt
+@@ -52,6 +52,9 @@ elseif(NtkGui)
+     install(TARGETS zynaddsubfx-ext-gui RUNTIME DESTINATION bin)
+ endif()
+ 
++# At least for ARM fltk-GUI is segfaulting for -O2 -O3
++set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O1")
++
+ add_library(zynaddsubfx_gui STATIC
+ 	${UI_objs}
+ 	${zynaddsubfx_gui_FLTK_UI_SRCS}
+-- 
+2.9.4
+
diff --git a/recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_2.5.4.bb b/recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_3.0.1.bb
similarity index 89%
rename from recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_2.5.4.bb
rename to recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_3.0.1.bb
index af20af0e..9baf3fa6 100644
--- a/recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_2.5.4.bb
+++ b/recipes-misc/recipes-multimedia/zynaddsubfx/zynaddsubfx_3.0.1.bb
@@ -22,21 +22,25 @@ DEPENDS += " \
     libxpm \
 "
 
+CXXFLAGS += "-ffast-math"
+
 SRC_URI = " \
     ${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}/${PV}/${BPN}-${PV}.tar.bz2 \
     file://0001-No-target-specific-asm.patch \
     file://0002-Controller-Spliter-align-Makefiles-for-cross-compili.patch \
     file://0003-Nio.cpp-Do-not-use-ps-aux-to-find-jack-busybox-s-ps-.patch \
     file://0004-Keep-our-build-flags.patch \
+    file://0005-Set-UI-optimization-to-O1-explicitly.patch \
 "
-SRC_URI[md5sum] = "7dc757512e5b6f3013bfb168ed01cfa3"
-SRC_URI[sha256sum] = "014b1d9ad1750c310369676b46a4555ba6bec512c38ccba17ceb89c78552949a"
+SRC_URI[md5sum] = "bca8fc104bf31103d603a3d2bcc10027"
+SRC_URI[sha256sum] = "a8017f382be5af9e46e6e8771fb7d7c1fd2e480cf099bbb0c29606b217dd32e2"
 
 do_configure_prepend() {
     # We cannot run lv2-ttl-generator in cross environment so keep commands in 
     # shell script. Builddir is deleted so keep our script in ${WORKDIR}
 
 	# manipulate CMakeLists.txt to keep commands in script
+    sed -i 's|../../lv2-ttl-generator|lv2-ttl-generator|g' `find ${S} -name CMakeLists.txt`
     sed -i 's|lv2-ttl-generator $<TARGET_FILE.*|echo \"&\" >> ${WORKDIR}/lv2-ttl-generator-data|g' `find ${S} -name CMakeLists.txt`
 }