fix build issue with INLINE and gcc

Author: struct

include/iso_alloc_internal.h

@@ -530,7 +530,6 @@ INTERNAL_HIDDEN INLINE void iso_clear_user_chunk(uint8_t *p, size_t size);
 INTERNAL_HIDDEN INLINE void fill_free_bit_slot_cache(iso_alloc_zone *zone);
 INTERNAL_HIDDEN INLINE void insert_free_bit_slot(iso_alloc_zone *zone, int64_t bit_slot);
 INTERNAL_HIDDEN INLINE void write_canary(iso_alloc_zone *zone, void *p);
-INTERNAL_HIDDEN INLINE void flush_thread_caches(void);
 INTERNAL_HIDDEN INLINE void populate_thread_caches(iso_alloc_zone *zone);
 INTERNAL_HIDDEN INLINE size_t next_pow2(size_t sz);
 INTERNAL_HIDDEN iso_alloc_zone *is_zone_usable(iso_alloc_zone *zone, size_t size);
@@ -544,6 +543,7 @@ INTERNAL_HIDDEN bit_slot_t iso_scan_zone_free_slot(iso_alloc_zone *zone);
 INTERNAL_HIDDEN bit_slot_t get_next_free_bit_slot(iso_alloc_zone *zone);
 INTERNAL_HIDDEN iso_alloc_root *iso_alloc_new_root(void);
 INTERNAL_HIDDEN bool iso_does_zone_fit(iso_alloc_zone *zone, size_t size);
+INTERNAL_HIDDEN void flush_thread_caches(void);
 INTERNAL_HIDDEN void iso_free_chunk_from_zone(iso_alloc_zone *zone, void *p, bool permanent);
 INTERNAL_HIDDEN void create_canary_chunks(iso_alloc_zone *zone);
 INTERNAL_HIDDEN void iso_alloc_initialize_global_root(void);

src/iso_alloc.c

@@ -425,7 +425,7 @@ __attribute__((constructor(FIRST_CTOR))) void iso_alloc_ctor(void) {
 #endif
 }
 
-INTERNAL_HIDDEN INLINE void flush_thread_caches() {
+INTERNAL_HIDDEN void flush_thread_caches() {
 #if THREAD_SUPPORT && THREAD_CACHE
     /* The thread zone cache can be invalidated */
     memset(thread_zone_cache, 0x0, sizeof(thread_zone_cache));