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40 lines
1.4 KiB
Diff
40 lines
1.4 KiB
Diff
# HG changeset patch
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# Parent e378875000890099fffcdb4cbc4ab12828ac34ee
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# User Daniel Holbert <dholbert@cs.stanford.edu>
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Bug 890539: Annotate SK_COMPILE_ASSERT's typedef as permissibly unused, to fix GCC 4.8 build warning. r=gw280
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diff --git a/gfx/skia/include/core/SkTypes.h b/gfx/skia/include/core/SkTypes.h
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--- a/gfx/skia/include/core/SkTypes.h
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+++ b/gfx/skia/include/core/SkTypes.h
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@@ -121,18 +121,29 @@ inline void operator delete(void* p) {
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#define SkDEVCODE(code)
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#define SK_DEVELOPER_TO_STRING()
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#endif
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template <bool>
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struct SkCompileAssert {
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};
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+/*
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+ * The SK_COMPILE_ASSERT definition creates an otherwise-unused typedef. This
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+ * triggers compiler warnings with some versions of gcc, so mark the typedef
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+ * as permissibly-unused to disable the warnings.
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+ */
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+# if defined(__GNUC__)
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+# define SK_COMPILE_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused))
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+# else
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+# define SK_COMPILE_ASSERT_UNUSED_ATTRIBUTE /* nothing */
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+# endif
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+
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#define SK_COMPILE_ASSERT(expr, msg) \
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- typedef SkCompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
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+ typedef SkCompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] SK_COMPILE_ASSERT_UNUSED_ATTRIBUTE
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/*
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* Usage: SK_MACRO_CONCAT(a, b) to construct the symbol ab
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*
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* SK_MACRO_CONCAT_IMPL_PRIV just exists to make this work. Do not use directly
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*
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*/
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#define SK_MACRO_CONCAT(X, Y) SK_MACRO_CONCAT_IMPL_PRIV(X, Y)
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