diff --git a/src/common/cbasetypes.h b/src/common/cbasetypes.h
index caf4175107a..ef3043c32ce 100644
--- a/src/common/cbasetypes.h
+++ b/src/common/cbasetypes.h
@@ -339,14 +339,21 @@ typedef uintptr_t uintptr;
 #if defined(__GNUC__) && !defined(__clang__)
 #define GCCATTR(str) __attribute__ (str)
 #else  // defined(__GNUC__) && !defined(__clang__)
-#define GCCATTR(str) 
+#define GCCATTR(str)
+#endif // defined(__GNUC__) && !defined(__clang__)
+
+// attribute for gcc only
+#if defined(__GNUC__) && !defined(__clang__) && (GCC_VERSION >= 100000)
+#define GCC10ATTR(str) __attribute__ (str)
+#else  // defined(__GNUC__) && !defined(__clang__)
+#define GCC10ATTR(str)
 #endif // defined(__GNUC__) && !defined(__clang__)
 
 // attribute for gcc only
 #if defined(__GNUC__) && !defined(__clang__) && (GCC_VERSION >= 110000)
 #define GCC11ATTR(str) __attribute__ (str)
 #else  // defined(__GNUC__) && !defined(__clang__)
-#define GCC11ATTR(str) 
+#define GCC11ATTR(str)
 #endif // defined(__GNUC__) && !defined(__clang__)
 
 // fallthrough attribute only enabled on gcc >= 7.0
diff --git a/src/common/strlib.h b/src/common/strlib.h
index 6385ddb7c8f..a6ecbc1a628 100644
--- a/src/common/strlib.h
+++ b/src/common/strlib.h
@@ -111,28 +111,28 @@ struct StringBuf {
 typedef struct StringBuf StringBuf;
 
 struct strlib_interface {
-	char *(*jstrescape) (char* pt) GCCATTR ((access (read_only, 1)));
-	char *(*jstrescapecpy) (char* pt, const char* spt) GCCATTR ((access (write_only, 1), access (read_only, 2)));
-	int (*jmemescapecpy) (char* pt, const char* spt, int size) GCCATTR ((access (write_only, 1), access (read_only, 2, 3)));
-	int (*remove_control_chars_) (char* str) GCCATTR ((access (read_write, 1)));
-	char *(*trim_) (char* str) GCCATTR ((access (read_write, 1)));
-	char *(*normalize_name_) (char* str, const char* delims)  GCCATTR ((access (read_write, 1), access (read_only, 2)));
-	const char *(*stristr_) (const char *haystack, const char *needle) GCCATTR ((access (read_only, 1), access (read_only, 2)));
+	char *(*jstrescape) (char* pt) GCC10ATTR ((access (read_only, 1)));
+	char *(*jstrescapecpy) (char* pt, const char* spt) GCC10ATTR ((access (write_only, 1), access (read_only, 2)));
+	int (*jmemescapecpy) (char* pt, const char* spt, int size) GCC10ATTR ((access (write_only, 1), access (read_only, 2, 3)));
+	int (*remove_control_chars_) (char* str) GCC10ATTR ((access (read_write, 1)));
+	char *(*trim_) (char* str) GCC10ATTR ((access (read_write, 1)));
+	char *(*normalize_name_) (char* str, const char* delims)  GCC10ATTR ((access (read_write, 1), access (read_only, 2)));
+	const char *(*stristr_) (const char *haystack, const char *needle) GCC10ATTR ((access (read_only, 1), access (read_only, 2)));
 
 	/* only used when '!(defined(WIN32) && defined(_MSC_VER)) && !defined(HAVE_STRNLEN)', needs to be defined at all times however  */
-	size_t (*strnlen_) (const char* string, size_t maxlen) GCCATTR ((access (read_only, 1, 2)));
+	size_t (*strnlen_) (const char* string, size_t maxlen) GCC10ATTR ((access (read_only, 1, 2)));
 
 	/* only used when 'WIN32' */
-	char * (*strtok_r_) (char *s1, const char *s2, char **lasts) GCCATTR ((access (read_write, 1), access (read_only, 2), access (read_write, 3)));
+	char * (*strtok_r_) (char *s1, const char *s2, char **lasts) GCC10ATTR ((access (read_write, 1), access (read_only, 2), access (read_write, 3)));
 
-	int (*e_mail_check_) (char* email) GCCATTR ((access (read_write, 1)));
-	int (*config_switch_) (const char* str) GCCATTR ((access (read_only, 1)));
+	int (*e_mail_check_) (char* email) GCC10ATTR ((access (read_write, 1)));
+	int (*config_switch_) (const char* str) GCC10ATTR ((access (read_only, 1)));
 
 	/// strncpy that always null-terminates the string
-	char *(*safestrncpy_) (char* dst, const char* src, size_t n) GCCATTR ((access (write_only, 1, 3), access (read_only, 2)));
+	char *(*safestrncpy_) (char* dst, const char* src, size_t n) GCC10ATTR ((access (write_only, 1, 3), access (read_only, 2)));
 
 	/// doesn't crash on null pointer
-	size_t (*safestrnlen_) (const char* string, size_t maxlen) GCCATTR ((access (read_only, 1, 2)));
+	size_t (*safestrnlen_) (const char* string, size_t maxlen) GCC10ATTR ((access (read_only, 1, 2)));
 
 	/// Works like snprintf, but always null-terminates the buffer.
 	/// Returns the size of the string (without null-terminator)
@@ -141,26 +141,26 @@ struct strlib_interface {
 
 	/// Returns the line of the target position in the string.
 	/// Lines start at 1.
-	int (*strline_) (const char* str, size_t pos) GCCATTR ((access (read_only, 1)));
+	int (*strline_) (const char* str, size_t pos) GCC10ATTR ((access (read_only, 1)));
 
 	/// Produces the hexadecimal representation of the given input.
 	/// The output buffer must be at least count*2+1 in size.
 	/// Returns true on success, false on failure.
-	bool (*bin2hex_) (char *output, const unsigned char *input, size_t count) GCCATTR ((access (write_only, 1), access (read_only, 2, 3)));
+	bool (*bin2hex_) (char *output, const unsigned char *input, size_t count) GCC10ATTR ((access (write_only, 1), access (read_only, 2, 3)));
 };
 
 struct stringbuf_interface {
 	StringBuf* (*Malloc) (void);
-	void (*Init) (StringBuf* self) GCCATTR ((access (write_only, 1)));
-	int (*Printf) (StringBuf *self, const char *fmt, ...) __attribute__((format(printf, 2, 3))) GCCATTR ((access(read_write, 1)));
+	void (*Init) (StringBuf* self) GCC10ATTR ((access (write_only, 1)));
+	int (*Printf) (StringBuf *self, const char *fmt, ...) __attribute__((format(printf, 2, 3))) GCC10ATTR ((access(read_write, 1)));
 	int (*Vprintf) (StringBuf* self, const char* fmt, va_list args) __attribute__((format(printf, 2, 0)));
-	int (*Append) (StringBuf* self, const StringBuf *sbuf) GCCATTR ((access (read_write, 1), access (read_only, 2)));
-	int (*AppendStr) (StringBuf* self, const char* str) GCCATTR ((access (read_write, 1), access (read_only, 2)));
-	int (*Length) (StringBuf* self) GCCATTR ((access (read_only, 1)));
-	char* (*Value) (StringBuf* self) GCCATTR ((access (read_write, 1)));
-	void (*Clear) (StringBuf* self) GCCATTR ((access (read_write, 1)));
-	void (*Destroy) (StringBuf* self) GCCATTR ((access (read_write, 1)));
-	void (*Free) (StringBuf* self) GCCATTR ((access (read_write, 1)));
+	int (*Append) (StringBuf* self, const StringBuf *sbuf) GCC10ATTR ((access (read_write, 1), access (read_only, 2)));
+	int (*AppendStr) (StringBuf* self, const char* str) GCC10ATTR ((access (read_write, 1), access (read_only, 2)));
+	int (*Length) (StringBuf* self) GCC10ATTR ((access (read_only, 1)));
+	char* (*Value) (StringBuf* self) GCC10ATTR ((access (read_write, 1)));
+	void (*Clear) (StringBuf* self) GCC10ATTR ((access (read_write, 1)));
+	void (*Destroy) (StringBuf* self) GCC10ATTR ((access (read_write, 1)));
+	void (*Free) (StringBuf* self) GCC10ATTR ((access (read_write, 1)));
 };
 
 struct sv_interface {
diff --git a/src/map/HPMmap.c b/src/map/HPMmap.c
index 2d6f9e47e93..8afbb48ecea 100644
--- a/src/map/HPMmap.c
+++ b/src/map/HPMmap.c
@@ -61,6 +61,7 @@
 #include "map/date.h"
 #include "map/duel.h"
 #include "map/elemental.h"
+#include "map/grader.h"
 #include "map/guild.h"
 #include "map/homunculus.h"
 #include "map/instance.h"
diff --git a/src/plugins/HPMHooking.c b/src/plugins/HPMHooking.c
index ba924664642..5b633538650 100644
--- a/src/plugins/HPMHooking.c
+++ b/src/plugins/HPMHooking.c
@@ -87,6 +87,7 @@ PRAGMA_GCC5(GCC diagnostic ignored "-Wsuggest-attribute=format")
 #include "map/clif.h"
 #include "map/duel.h"
 #include "map/elemental.h"
+#include "map/grader.h"
 #include "map/guild.h"
 #include "map/homunculus.h"
 #include "map/instance.h"