Index: lib/builtins/assembly.h
===================================================================
--- lib/builtins/assembly.h
+++ lib/builtins/assembly.h
@@ -28,6 +28,7 @@
 // tell linker it can break up file at label boundaries
 #define FILE_LEVEL_DIRECTIVE .subsections_via_symbols
 #define SYMBOL_IS_FUNC(name)
+#define CONST_SECTION .const
 
 #elif defined(__ELF__)
 
@@ -39,10 +40,11 @@
 #else
 #define SYMBOL_IS_FUNC(name) .type name,@function
 #endif
+#define CONST_SECTION .section .rodata
 
 #else // !__APPLE__ && !__ELF__
 
-#define HIDDEN_DIRECTIVE(name)
+#define HIDDEN(name)
 #define LOCAL_LABEL(name) .L ## name
 #define FILE_LEVEL_DIRECTIVE
 #define SYMBOL_IS_FUNC(name)                                                   \
@@ -50,6 +52,7 @@
     .scl 2 SEPARATOR                                                           \
     .type 32 SEPARATOR                                                         \
   .endef
+#define CONST_SECTION .section .rdata,"rd"
 
 #endif
 
Index: lib/builtins/i386/floatdidf.S
===================================================================
--- lib/builtins/i386/floatdidf.S
+++ lib/builtins/i386/floatdidf.S
@@ -7,13 +7,7 @@
 
 #ifdef __i386__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop52:
Index: lib/builtins/i386/floatundidf.S
===================================================================
--- lib/builtins/i386/floatundidf.S
+++ lib/builtins/i386/floatundidf.S
@@ -17,13 +17,7 @@
 
 #ifdef __i386__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop52:
Index: lib/builtins/i386/floatundisf.S
===================================================================
--- lib/builtins/i386/floatundisf.S
+++ lib/builtins/i386/floatundisf.S
@@ -18,7 +18,7 @@
 
 #ifdef __i386__
 
-.const
+CONST_SECTION
 .balign 3
 
 		.quad	0x43f0000000000000
@@ -52,13 +52,7 @@
 
 #ifdef __i386__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop52:
Index: lib/builtins/i386/floatundixf.S
===================================================================
--- lib/builtins/i386/floatundixf.S
+++ lib/builtins/i386/floatundixf.S
@@ -7,13 +7,7 @@
 
 #ifdef __i386__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop52:
Index: lib/builtins/x86_64/floatundidf.S
===================================================================
--- lib/builtins/x86_64/floatundidf.S
+++ lib/builtins/x86_64/floatundidf.S
@@ -17,13 +17,7 @@
 
 #ifdef __x86_64__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop52:
Index: lib/builtins/x86_64/floatundisf.S
===================================================================
--- lib/builtins/x86_64/floatundisf.S
+++ lib/builtins/x86_64/floatundisf.S
@@ -7,13 +7,7 @@
 
 #ifdef __x86_64__
 
-#if defined(__APPLE__)
-	.literal4
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 two:
Index: lib/builtins/x86_64/floatundixf.S
===================================================================
--- lib/builtins/x86_64/floatundixf.S
+++ lib/builtins/x86_64/floatundixf.S
@@ -7,13 +7,7 @@
 
 #ifdef __x86_64__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.section .rodata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
 
 	.balign 16
 twop64:
@@ -42,13 +36,8 @@
 
 #ifdef __x86_64__
 
-#if defined(__APPLE__)
-	.const
-#elif defined(__ELF__)
-	.rdata
-#else
-	.section .rdata,"rd"
-#endif
+CONST_SECTION
+
 	.balign 4
 twop52:
 	.quad 0x4330000000000000