diff --git a/srcpkgs/boomerang/patches/fix-cflags.patch b/srcpkgs/boomerang/patches/fix-cflags.patch
new file mode 100644
index 00000000000..eb59766c1c5
--- /dev/null
+++ b/srcpkgs/boomerang/patches/fix-cflags.patch
@@ -0,0 +1,21 @@
+Index: cmake-scripts/boomerang-flags.cmake
+===================================================================
+--- cmake-scripts/boomerang-flags.cmake
++++ cmake-scripts/boomerang-flags.cmake
+@@ -104,16 +104,6 @@ endif ()
+ 
+ 
+ if (NOT MSVC)
+-    if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
+-        BOOMERANG_ADD_COMPILE_FLAGS(-O0)
+-    elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
+-        # No special flags
+-    elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "MinSizeRel")
+-        BOOMERANG_ADD_COMPILE_FLAGS(-Os)
+-    else () # Release
+-        BOOMERANG_ADD_COMPILE_FLAGS(-O3)
+-    endif ()
+-
+     if (BOOMERANG_ENABLE_COVERAGE)
+         set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
+         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")