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-rw-r--r--sound/softsynth/mt32/tables.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/softsynth/mt32/tables.cpp b/sound/softsynth/mt32/tables.cpp
index 5865ba2950..0ae8e9892a 100644
--- a/sound/softsynth/mt32/tables.cpp
+++ b/sound/softsynth/mt32/tables.cpp
@@ -25,11 +25,14 @@
#include "mt32emu.h"
-#if defined(MACOSX) || defined(SOLARIS)
+#if defined(MACOSX) || defined(SOLARIS) || defined(__MINGW32__)
// Older versions of Mac OS X didn't supply a powf function, so using it
// will cause a binary incompatibility when trying to run a binary built
// on a newer OS X release on an olderr one. And Solaris 8 doesn't provide
// powf, floorf, fabsf etc. at all.
+// Cross-compiled MinGW32 toolchains suffer from a cross-compile bug in
+// libstdc++. math/stubs.o should be empty, but it comes with a symbol for
+// powf, resulting in a linker error because of multiple definitions.
// Hence we re-define them here. The only potential drawback is that it
// might be a little bit slower this way.
#define powf pow