File zynaddsubfx-buildflags.patch of Package zynaddsubfx

diff -Nur zynaddsubfx-3.0.6/src/CMakeLists.txt new/src/CMakeLists.txt
--- zynaddsubfx-3.0.6/src/CMakeLists.txt	2022-01-22 02:46:21.000000000 +0100
+++ new/src/CMakeLists.txt	2022-04-14 14:46:44.472067628 +0200
@@ -261,7 +261,7 @@
 check_cxx_compiler_flag("${BuildOptions_SSE} -Werror" SUPPORT_SSE)
 
 set (BuildOptionsBasic
-    "-std=c++11 -Wno-unused-parameter -O3 -ffast-math -fomit-frame-pointer"
+    "-std=c++11 -Wno-unused-parameter -O3 -ffast-math -fomit-frame-pointer ${CMAKE_CXX_FLAGS}"
     CACHE STRING "basic X86 compiler options"
 )
 STRING(APPEND BuildOptionsBasic " ${BuildOptions_ExtendedWarnings}")