diff --git a/src/lib/Iex/IexThrowErrnoExc.cpp b/src/lib/Iex/IexThrowErrnoExc.cpp
index 3d2e3c2864..057d311bb6 100644
--- a/src/lib/Iex/IexThrowErrnoExc.cpp
+++ b/src/lib/Iex/IexThrowErrnoExc.cpp
@@ -18,7 +18,10 @@
 
 #ifdef _WIN32
 #include <windows.h>
-#pragma warning (disable : 4996)
+#endif
+
+#ifdef _MSC_VER
+  #pragma warning (disable : 4996)
 #endif
 
 IEX_INTERNAL_NAMESPACE_SOURCE_ENTER
diff --git a/src/lib/OpenEXR/ImfKeyCode.h b/src/lib/OpenEXR/ImfKeyCode.h
index 15fc9c2466..4916797afd 100644
--- a/src/lib/OpenEXR/ImfKeyCode.h
+++ b/src/lib/OpenEXR/ImfKeyCode.h
@@ -90,7 +90,6 @@ class IMF_EXPORT_TYPE KeyCode
 
     IMF_EXPORT
     KeyCode (const KeyCode &other);
-    IMF_EXPORT
     ~KeyCode() = default;
     IMF_EXPORT
     KeyCode & operator = (const KeyCode &other);
diff --git a/src/lib/OpenEXRCore/decoding.c b/src/lib/OpenEXRCore/decoding.c
index f9a4272d65..cf7709d17a 100644
--- a/src/lib/OpenEXRCore/decoding.c
+++ b/src/lib/OpenEXRCore/decoding.c
@@ -306,7 +306,7 @@ default_decompress_chunk (exr_decode_pipeline_t* decode)
             return pctxt->print_error (
                 pctxt,
                 rv,
-                "Unable to decompress sample table %lu -> %lu",
+                "Unable to decompress sample table %llu -> %zu",
                 decode->chunk.sample_count_table_size,
                 sampsize);
         }
@@ -328,7 +328,7 @@ default_decompress_chunk (exr_decode_pipeline_t* decode)
         return pctxt->print_error (
             pctxt,
             rv,
-            "Unable to decompress image data %lu -> %lu",
+            "Unable to decompress image data %llu -> %llu",
             decode->chunk.packed_size,
             decode->chunk.unpacked_size);
     }
diff --git a/src/lib/OpenEXRCore/internal_win32_file_impl.h b/src/lib/OpenEXRCore/internal_win32_file_impl.h
index 49531fc5de..82c7d65a7b 100644
--- a/src/lib/OpenEXRCore/internal_win32_file_impl.h
+++ b/src/lib/OpenEXRCore/internal_win32_file_impl.h
@@ -61,9 +61,9 @@ print_error_helper (
 
     if (error_cb)
         error_cb (
-            (exr_const_context_t) pf, errcode, (const char*) lpDisplayBuf);
+            (exr_const_context_t) pf, errcode, "%s", (const char*) lpDisplayBuf);
     else
-        pf->print_error (pf, errcode, (const char*) lpDisplayBuf);
+        pf->print_error (pf, errcode, "%s", (const char*) lpDisplayBuf);
 
     LocalFree (lpMsgBuf);
     LocalFree (lpDisplayBuf);
diff --git a/src/lib/OpenEXRCore/unpack.c b/src/lib/OpenEXRCore/unpack.c
index 2abf4b308c..ecb77d6a11 100644
--- a/src/lib/OpenEXRCore/unpack.c
+++ b/src/lib/OpenEXRCore/unpack.c
@@ -9,6 +9,7 @@
 #include "openexr_attr.h"
 
 #include <string.h>
+#include <stdbool.h>
 
 #if defined(__x86_64__) || defined(_M_X64)
 #    ifndef _WIN32
diff --git a/src/test/IexTest/CMakeLists.txt b/src/test/IexTest/CMakeLists.txt
index a26212b916..f069c61341 100644
--- a/src/test/IexTest/CMakeLists.txt
+++ b/src/test/IexTest/CMakeLists.txt
@@ -13,4 +13,6 @@ set_target_properties(IexTest PROPERTIES
 if(WIN32 AND BUILD_SHARED_LIBS)
   target_compile_definitions(IexTest PRIVATE OPENEXR_DLL)
 endif()
-add_test(NAME OpenEXR.Iex COMMAND $<TARGET_FILE:IexTest>)
+
+# CMAKE_CROSSCOMPILING_EMULATOR is necessary to support cross-compiling (ex: to win32 from mingw and running tests with wine)
+add_test(NAME OpenEXR.Iex COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:IexTest>)
diff --git a/src/test/OpenEXRCoreTest/CMakeLists.txt b/src/test/OpenEXRCoreTest/CMakeLists.txt
index 6efdbdc5eb..13f4603309 100644
--- a/src/test/OpenEXRCoreTest/CMakeLists.txt
+++ b/src/test/OpenEXRCoreTest/CMakeLists.txt
@@ -40,10 +40,10 @@ if(WIN32 AND (BUILD_SHARED_LIBS OR OPENEXR_BUILD_BOTH_STATIC_SHARED))
   target_compile_definitions(CorePerfTest PRIVATE OPENEXR_DLL)
 endif()
 
-#add_test(NAME OpenEXR.Core COMMAND $<TARGET_FILE:OpenEXRCoreTest>)
 function(DEFINE_OPENEXRCORE_TESTS)
   foreach(curtest IN LISTS ARGN)
-    add_test(NAME OpenEXRCore.${curtest} COMMAND $<TARGET_FILE:OpenEXRCoreTest> ${curtest})
+    # CMAKE_CROSSCOMPILING_EMULATOR is necessary to support cross-compiling (ex: to win32 from mingw and running tests with wine)
+    add_test(NAME OpenEXRCore.${curtest} COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:OpenEXRCoreTest> ${curtest})
   endforeach()
 endfunction()
 
diff --git a/src/test/OpenEXRFuzzTest/CMakeLists.txt b/src/test/OpenEXRFuzzTest/CMakeLists.txt
index 75ba3a59eb..a1b650b108 100644
--- a/src/test/OpenEXRFuzzTest/CMakeLists.txt
+++ b/src/test/OpenEXRFuzzTest/CMakeLists.txt
@@ -18,7 +18,8 @@ if(OPENEXR_RUN_FUZZ_TESTS)
 
 function(DEFINE_OPENEXR_FUZZ_TESTS)
   foreach(curtest IN LISTS ARGN)
-    add_test(NAME OpenEXR.Fuzz.${curtest} COMMAND $<TARGET_FILE:OpenEXRFuzzTest> ${curtest})
+    # CMAKE_CROSSCOMPILING_EMULATOR is necessary to support cross-compiling (ex: to win32 from mingw and running tests with wine)
+    add_test(NAME OpenEXR.Fuzz.${curtest} COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:OpenEXRFuzzTest> ${curtest})
     set_tests_properties(OpenEXR.Fuzz.${curtest} PROPERTIES TIMEOUT 36000)
   endforeach()
 endfunction()
@@ -28,8 +29,6 @@ endfunction()
     testFuzzDeepScanLines
     testFuzzDeepTiles
   )
-  #add_test(NAME OpenEXR.Fuzz COMMAND $<TARGET_FILE:OpenEXRFuzzTest>)
-  #set_tests_properties(OpenEXR.Fuzz PROPERTIES TIMEOUT 36000)
 
   add_custom_target(fuzz $<TARGET_FILE:OpenEXRFuzzTest>)
   add_dependencies(fuzz OpenEXRFuzzTest)
diff --git a/src/test/OpenEXRTest/CMakeLists.txt b/src/test/OpenEXRTest/CMakeLists.txt
index ebd3428356..9dd74d1a7b 100644
--- a/src/test/OpenEXRTest/CMakeLists.txt
+++ b/src/test/OpenEXRTest/CMakeLists.txt
@@ -74,14 +74,10 @@ if(WIN32 AND BUILD_SHARED_LIBS)
   target_compile_definitions(OpenEXRTest PRIVATE OPENEXR_DLL)
 endif()
 
-#add_test(NAME OpenEXR.Core COMMAND $<TARGET_FILE:OpenEXRTest> core)
-#add_test(NAME OpenEXR.Basic COMMAND $<TARGET_FILE:OpenEXRTest> basic)
-#add_test(NAME OpenEXR.Deep COMMAND $<TARGET_FILE:OpenEXRTest> deep)
-#add_test(NAME OpenEXR.Multi COMMAND $<TARGET_FILE:OpenEXRTest> multi)
-
 function(DEFINE_OPENEXR_TESTS)
   foreach(curtest IN LISTS ARGN)
-    add_test(NAME OpenEXR.${curtest} COMMAND $<TARGET_FILE:OpenEXRTest> ${curtest})
+    # CMAKE_CROSSCOMPILING_EMULATOR is necessary to support cross-compiling (ex: to win32 from mingw and running tests with wine)
+    add_test(NAME OpenEXR.${curtest} COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:OpenEXRTest> ${curtest})
   endforeach()
 endfunction()
 
diff --git a/src/test/OpenEXRUtilTest/CMakeLists.txt b/src/test/OpenEXRUtilTest/CMakeLists.txt
index 8eb80cdc75..2f4cafc18a 100644
--- a/src/test/OpenEXRUtilTest/CMakeLists.txt
+++ b/src/test/OpenEXRUtilTest/CMakeLists.txt
@@ -17,10 +17,10 @@ endif()
 
 function(DEFINE_OPENEXR_UTIL_TESTS)
   foreach(curtest IN LISTS ARGN)
-    add_test(NAME OpenEXRUtil.${curtest} COMMAND $<TARGET_FILE:OpenEXRUtilTest> ${curtest})
+    # CMAKE_CROSSCOMPILING_EMULATOR is necessary to support cross-compiling (ex: to win32 from mingw and running tests with wine)
+    add_test(NAME OpenEXRUtil.${curtest} COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:OpenEXRUtilTest> ${curtest})
   endforeach()
 endfunction()
-#add_test(NAME OpenEXR.OpenEXRUtil COMMAND $<TARGET_FILE:OpenEXRUtilTest>)
 
 define_openexr_util_tests(
   testFlatImage