diff -ur kicad-5.1.5/CMakeLists.txt kicad-5.1.5_patched/CMakeLists.txt
--- kicad-5.1.5/CMakeLists.txt	2019-11-14 20:09:45.000000000 +0300
+++ kicad-5.1.5_patched/CMakeLists.txt	2020-01-26 15:06:50.340865974 +0300
@@ -326,7 +326,6 @@
     endif()
 
     if( MINGW )
-        set( CMAKE_EXE_LINKER_FLAGS_RELEASE "-s" )
 
         # Since version 2.8.5, Cmake uses a response file (.rsp) to
         # pass the list of include paths to gcc
@@ -358,7 +357,6 @@
         set( CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined" )
         set( CMAKE_MODULE_LINKER_FLAGS "-Wl,--no-undefined" )
 
-        set( CMAKE_EXE_LINKER_FLAGS_RELEASE "-s" )
 
         # Defeat ELF's ability to use the GOT to replace locally implemented functions
         # with ones from another module.