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-rw-r--r--include/ruby/win32.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/include/ruby/win32.h b/include/ruby/win32.h
index a7c9db81cd..ca99ee48f3 100644
--- a/include/ruby/win32.h
+++ b/include/ruby/win32.h
@@ -753,7 +753,8 @@ uintptr_t rb_w32_asynchronize(asynchronous_func_t func, uintptr_t self, int argc
RUBY_SYMBOL_EXPORT_END
-#ifdef __MINGW_ATTRIB_PURE
+#if (defined(__MINGW64_VERSION_MAJOR) || defined(__MINGW64__)) && !defined(__cplusplus)
+#ifdef RUBY_MINGW64_BROKEN_FREXP_MODF
/* License: Ruby's */
/* get rid of bugs in math.h of mingw */
#define frexp(_X, _Y) __extension__ ({\
@@ -771,13 +772,6 @@ RUBY_SYMBOL_EXPORT_END
})
#endif
-#if defined(__cplusplus)
-#if 0
-{ /* satisfy cc-mode */
-#endif
-} /* extern "C" { */
-#endif
-
#if defined(__MINGW64__)
/*
* Use powl() instead of broken pow() of x86_64-w64-mingw32.
@@ -792,8 +786,14 @@ rb_w32_pow(double x, double y)
#elif defined(__MINGW64_VERSION_MAJOR)
double rb_w32_pow(double x, double y);
#endif
-#if defined(__MINGW64_VERSION_MAJOR) || defined(__MINGW64__)
#define pow rb_w32_pow
#endif
+#if defined(__cplusplus)
+#if 0
+{ /* satisfy cc-mode */
+#endif
+} /* extern "C" { */
+#endif
+
#endif /* RUBY_WIN32_H */