diff --git a/include/haproxy/bug.h b/include/haproxy/bug.h
index 99892d2..13dc161 100644
--- a/include/haproxy/bug.h
+++ b/include/haproxy/bug.h
@@ -128,8 +128,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_CALLOC,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	_HA_ATOMIC_INC(&_.calls);					\
 	_HA_ATOMIC_ADD(&_.size, __x * __y);				\
 	calloc(__x,__y);						\
@@ -145,8 +145,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_FREE,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	if (__x)							\
 		_HA_ATOMIC_INC(&_.calls);				\
 	free(__x);							\
@@ -159,8 +159,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_FREE,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	if (__builtin_constant_p((x)) || __builtin_constant_p(*(x))) {  \
 		HA_LINK_ERROR(call_to_ha_free_attempts_to_free_a_constant); \
 	}								\
@@ -177,8 +177,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_MALLOC,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	_HA_ATOMIC_INC(&_.calls);					\
 	_HA_ATOMIC_ADD(&_.size, __x);					\
 	malloc(__x);							\
@@ -191,8 +191,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_REALLOC,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	_HA_ATOMIC_INC(&_.calls);					\
 	_HA_ATOMIC_ADD(&_.size, __y);					\
 	realloc(__x,__y);						\
@@ -205,8 +205,8 @@
 		.file = __FILE__, .line = __LINE__,			\
 		.type = MEM_STATS_TYPE_STRDUP,				\
 	};								\
-	__asm__(".weak __start_mem_stats");				\
-	__asm__(".weak __stop_mem_stats");				\
+	HA_GLOBL("__start_mem_stats");					\
+	HA_GLOBL("__stop_mem_stats");					\
 	_HA_ATOMIC_INC(&_.calls);					\
 	_HA_ATOMIC_ADD(&_.size, __y);					\
 	strdup(__x);							\
diff --git a/include/haproxy/compiler.h b/include/haproxy/compiler.h
index b975412..01fb0cc 100644
--- a/include/haproxy/compiler.h
+++ b/include/haproxy/compiler.h
@@ -88,6 +88,21 @@
 
 #endif // USE_OBSOLETE_LINKER
 
+/* Declare a symbol as global and if possible, as weak. Since we don't want to
+ * error on multiple definitions, the symbol is declared weak. On MacOS ".weak"
+ * does not exist and we must continue to use ".globl" instead. Note that
+ * ".global" is to be avoided on other platforms as llvm complains about it
+ * being used for symbols declared as weak elsewhere in the code. It may or may
+ * not work depending on linkers and assemblers, this is only for advanced use
+ * anyway (and most likely it will only work with !USE_OBSOLETE_LINKER).
+ */
+#if defined(__APPLE__)
+#  define __HA_GLOBL(sym)   __asm__(".globl " #sym)
+#else
+#  define __HA_GLOBL(sym)   __asm__(".weak " #sym)
+#endif
+#define HA_GLOBL(sym)    __HA_GLOBL(sym)
+
 /* use this attribute on a variable to move it to the read_mostly section */
 #if !defined(__read_mostly)
 #define __read_mostly           HA_SECTION("read_mostly")
diff --git a/include/haproxy/initcall.h b/include/haproxy/initcall.h
index 50dedb7..9f2c2ac 100644
--- a/include/haproxy/initcall.h
+++ b/include/haproxy/initcall.h
@@ -96,11 +96,9 @@
  * as a pointer (args are cast to (void*)). Do not use this macro directly,
  * use INITCALL{0..3}() instead.
  */
-#define __HA_GLOBL1(sym)   __asm__(".globl " #sym)
-#define __HA_GLOBL(sym)    __HA_GLOBL1(sym)
 #define __DECLARE_INITCALL(stg, linenum, function, a1, a2, a3)     \
-        __HA_GLOBL(__start_i_##stg );                              \
-        __HA_GLOBL(__stop_i_##stg );                               \
+        HA_GLOBL(__start_i_##stg );                                \
+        HA_GLOBL(__stop_i_##stg );                                 \
 	static const struct initcall *__initcb_##linenum           \
 	    __attribute__((__used__)) HA_INIT_SECTION(stg) =	   \
 	        (stg < STG_SIZE) ? &(const struct initcall) {      \