fix some fallout from 32-bit fixes for long double functions.

apply namespace.h to remqou*.  add missing weak aliases for some of them,
and normalise checkf for __weak_alias().

now libm.so seems to only have libc undefined symbols.

lib/libm/src/namespace.h

@@ -1,4 +1,4 @@
-/* $NetBSD: namespace.h,v 1.18 2024/01/21 18:53:18 christos Exp $ */
+/* $NetBSD: namespace.h,v 1.19 2024/02/24 19:32:09 mrg Exp $ */
 
 #define atan2 _atan2
 #define atan2f _atan2f
@@ -37,6 +37,10 @@
 #define asinf _asinf
 #define asinl _asinl
 
+#define remquo _remquo
+#define remquof _remquof
+#define remquol _remquol
+
 #define casin _casin
 #define casinf _casinf
 #define casinl _casinl

lib/libm/src/s_atanl.c

@@ -19,7 +19,9 @@
 #include "math.h"
 #include "math_private.h"
 
+#ifdef __weak_alias
 __weak_alias(atanl, _atanl)
+#endif
 
 #ifdef __HAVE_LONG_DOUBLE
 

lib/libm/src/s_remquo.c

@@ -12,11 +12,17 @@
 
 #include <sys/cdefs.h>
 
+#include "namespace.h"
+
 #include <float.h>
 
 #include "math.h"
 #include "math_private.h"
 
+#ifdef __weak_alias
+__weak_alias(remquo, _remquo)
+#endif
+
 static const double Zero[] = {0.0, -0.0,};
 
 /*

lib/libm/src/s_remquof.c

@@ -12,9 +12,15 @@
 
 #include <sys/cdefs.h>
 
+#include "namespace.h"
+
 #include "math.h"
 #include "math_private.h"
 
+#ifdef __weak_alias
+__weak_alias(remquof, _remquof)
+#endif
+
 static const float Zero[] = {0.0, -0.0,};
 
 /*

lib/libm/src/s_remquol.c

@@ -10,6 +10,9 @@
  */
 
 #include <sys/cdefs.h>
+
+#include "namespace.h"
+
 #include <float.h>
 #include <machine/ieee.h>
 #include <stdint.h>