Avoid stray pyconfig.h definition of 'copysign' causing problems (#2800)

Caused build errors on Windows due to conflicting definitions of copysign (one of which was a macro).
AcademySoftwareFoundation · Dec 31, 2020 · 9d8cda7 · 9d8cda7
1 parent 0f8a453
commit 9d8cda7
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/python/py_oiio.h b/src/python/py_oiio.h
@@ -24,6 +24,11 @@
 // Avoid a compiler warning from a duplication in tiffconf.h/pyconfig.h
 #undef SIZEOF_LONG
 
+// Avoid a problem with copysign defined in pyconfig.h on Windows.
+#ifdef copysign
+#    undef copysign
+#endif
+
 #include <OpenImageIO/deepdata.h>
 #include <OpenImageIO/imagebuf.h>
 #include <OpenImageIO/imagecache.h>