bpo-41302: Fix build with system libmpdec (GH-21481)
Move definition of UNUSED from modified headers of libmpdec to
_decimal.c itself. This makes the vendored source closer to the
standalone library and fixes build with --with-system-libmpdec.
Tested to build fine with either system libmpdec or the vendored one.
(cherry picked from commit 015efdbef7454a522e88cd79ba2b4cd77a5fb2a2)
Co-authored-by: Felix Yan <felixonmars@archlinux.org>
diff --git a/Modules/_decimal/_decimal.c b/Modules/_decimal/_decimal.c
index ff7c647..fb4e020 100644
--- a/Modules/_decimal/_decimal.c
+++ b/Modules/_decimal/_decimal.c
@@ -56,6 +56,11 @@
#define BOUNDS_CHECK(x, MIN, MAX) x = (x < MIN || MAX < x) ? MAX : x
+#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+ #define UNUSED __attribute__((unused))
+#else
+ #define UNUSED
+#endif
/* _Py_DEC_MINALLOC >= MPD_MINALLOC */
#define _Py_DEC_MINALLOC 4
diff --git a/Modules/_decimal/libmpdec/mpdecimal.h b/Modules/_decimal/libmpdec/mpdecimal.h
index 108b76e..2815a8c 100644
--- a/Modules/_decimal/libmpdec/mpdecimal.h
+++ b/Modules/_decimal/libmpdec/mpdecimal.h
@@ -61,12 +61,6 @@
#define MPD_HIDE_SYMBOLS_END
#endif
-#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
- #define UNUSED __attribute__((unused))
-#else
- #define UNUSED
-#endif
-
#if defined(_MSC_VER)
#include "vccompat.h"
#define EXTINLINE extern inline