Make Unicorn buildable with MinGW (#1364)

* [WIN32] Allow to build also with MinGW

* [WIN32] Fix build for MinGW

CMakeLists.txt

@@ -850,7 +850,7 @@ set(UNICORN_SRCS_COMMON
     uc.c
 )
 
-if (MSVC)
+if (WIN32)
     set(UNICORN_SRCS
         ${UNICORN_SRCS_COMMON}
         qemu/util/oslib-win32.c
@@ -918,7 +918,7 @@ target_compile_options(unicorn PRIVATE
     ${UNICORN_COMPILE_OPTIONS}
 )
 
-if(MSVC)
+if(WIN32)
     if (UNICORN_BUILD_SHARED)
         target_compile_options(unicorn PRIVATE
             -DUNICORN_SHARED
@@ -939,7 +939,7 @@ else()
     )
 endif()
 
-if(MSVC)
+if(WIN32)
     set(SAMPLES_LIB
         unicorn
     )

qemu/util/qemu-error.c

@@ -44,7 +44,7 @@ static void error_print_loc(void)
  * Prepend the current location and append a newline.
  * It's wrong to call this in a QMP monitor.  Use qerror_report() there.
  */
-#ifdef _MSC_VER
+#ifdef _WIN32
 void error_vreport(const char *fmt, va_list ap)
 {
     error_print_loc();