5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local

@@ -25,18 +25,16 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#if defined(ELFOBJ)
 #pragma weak ilogb = __ilogb
-#endif
 
 #include "libm.h"
 #include "xpg6.h"       /* __xpg6 */
 
-#if defined(USE_FPSCALE) || defined(__x86)
+#if defined(__x86)
 static const double two52 = 4503599627370496.0;
 #else
 /*
  * v: high part of a non-zero subnormal |x|; w: low part of |x|
  */

@@ -55,11 +53,11 @@
         if (v & 0xf0)
                 r += 4, v >>= 4;
         v <<= 1;
         return (r + ((0xffffaa50 >> v) & 0x3));
 }
-#endif  /* defined(USE_FPSCALE) */
+#endif  /* defined(__x86) */
 
 static int
 raise_invalid(int v) {  /* SUSv3 requires ilogb(0,+/-Inf,NaN) raise invalid */
 #ifndef lint
         if ((__xpg6 & _C99SUSv3_ilogb_0InfNaN_raises_invalid) != 0) {

@@ -78,11 +76,11 @@
 
         if (k < 0x00100000) {
                 if ((px[LOWORD] | k) == 0)
                         return (raise_invalid(0x80000001));
                 else {
-#if defined(USE_FPSCALE) || defined(__x86)
+#if defined(__x86)
                         x *= two52;
                         return (((px[HIWORD] & 0x7ff00000) >> 20) - 1075);
 #else
                         return (ilogb_subnormal(k, px[LOWORD]));
 #endif