--- openal-soft-openal-soft-1.21.0/CMakeLists.txt.orig	2020-03-04 12:52:14.862006000 +0300
+++ openal-soft-openal-soft-1.21.0/CMakeLists.txt	2020-03-04 12:52:40.355186300 +0300
@@ -429,11 +429,13 @@
 
 # Some systems need libm for some math functions to work
 set(MATH_LIB )
+if(NOT MINGW)
 check_library_exists(m pow "" HAVE_LIBM)
 if(HAVE_LIBM)
     set(MATH_LIB ${MATH_LIB} m)
     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m)
 endif()
+endif()
 
 # Some systems need to link with -lrt for clock_gettime as used by the common
 # eaxmple functions.
--- openal-soft-openal-soft-1.21.0/cmake/FindMySOFA.cmake.orig	2020-03-04 13:48:39.214749300 +0300
+++ openal-soft-openal-soft-1.21.0/cmake/FindMySOFA.cmake	2020-03-04 13:49:02.945683400 +0300
@@ -49,9 +49,11 @@
              DOC "The MySOFA library"
 )
 
+if(NOT MINGW)
 find_library(MYSOFA_M_LIBRARY NAMES m
              DOC "The math library for MySOFA"
 )
+endif()
 
 # handle the QUIETLY and REQUIRED arguments and set MYSOFA_FOUND to TRUE if
 # all listed variables are TRUE