more [[gnu::...]] attributes

src/decoder/plugins/DsdLib.hxx

@@ -22,7 +22,6 @@
 
 #include "util/ByteOrder.hxx"
 #include "input/Offset.hxx"
-#include "util/Compiler.h"
 
 #include <cstdint>
 
@@ -33,7 +32,7 @@ class InputStream;
 struct DsdId {
 	char value[4];
 
-	gcc_pure
+	[[gnu::pure]]
 	bool Equals(const char *s) const noexcept;
 };
 
@@ -70,7 +69,7 @@ dsdlib_skip(DecoderClient *client, InputStream &is,
 /**
  * Check if the sample frequency is a valid DSD frequency.
  **/
-gcc_const
+[[gnu::const]]
 bool
 dsdlib_valid_freq(uint32_t samplefreq) noexcept;