6648 illumos build should be explicit about C standards

@@ -43,29 +43,29 @@
 #endif
 
 #include <sys/types.h>
 #include <sys/ieeefp.h>
 
-extern __inline__ float
+extern __GNU_INLINE float
 __inline_sqrtf(float a)
 {
         float ret;
 
         __asm__ __volatile__("sqrtss %1, %0\n\t" : "=x" (ret) : "x" (a));
         return (ret);
 }
 
-extern __inline__ double
+extern __GNU_INLINE double
 __inline_sqrt(double a)
 {
         double ret;
 
         __asm__ __volatile__("sqrtsd %1, %0\n\t" : "=x" (ret) : "x" (a));
         return (ret);
 }
 
-extern __inline__ double
+extern __GNU_INLINE double
 __ieee754_sqrt(double a)
 {
         return (__inline_sqrt(a));
 }
 

@@ -73,11 +73,11 @@
  * 00 - 24 bits
  * 01 - reserved
  * 10 - 53 bits
  * 11 - 64 bits
  */
-extern __inline__ int
+extern __GNU_INLINE int
 __swapRP(int i)
 {
         int ret;
         uint16_t cw;
 

@@ -95,11 +95,11 @@
  * 00 - Round to nearest, with even preferred
  * 01 - Round down
  * 10 - Round up
  * 11 - Chop
  */
-extern __inline__ enum fp_direction_type
+extern __GNU_INLINE enum fp_direction_type
 __swap87RD(enum fp_direction_type i)
 {
         int ret;
         uint16_t cw;
 

@@ -111,11 +111,11 @@
         __asm__ __volatile__("fldcw %0\n\t" : : "m" (cw));
 
         return (ret);
 }
 
-extern __inline__ int
+extern __GNU_INLINE int
 abs(int i)
 {
         int ret;
         __asm__ __volatile__(
             "movl    %1, %0\n\t"

@@ -125,11 +125,11 @@
             :
             : "cc");
         return (ret);
 }
 
-extern __inline__ double
+extern __GNU_INLINE double
 copysign(double d1, double d2)
 {
         double tmpd;
 
         __asm__ __volatile__(

@@ -141,11 +141,11 @@
             : "x" (d2), "r" (0x7fffffffffffffff));
 
         return (d1);
 }
 
-extern __inline__ double
+extern __GNU_INLINE double
 fabs(double d)
 {
         double tmp;
 
         __asm__ __volatile__(

@@ -155,22 +155,22 @@
             : "r" (0x7fffffffffffffff));
 
         return (d);
 }
 
-extern __inline__ float
+extern __GNU_INLINE float
 fabsf(float d)
 {
         __asm__ __volatile__(
             "andpd %1, %0"
             : "+x" (d)
             : "x" (0x7fffffff));
 
         return (d);
 }
 
-extern __inline__ int
+extern __GNU_INLINE int
 finite(double d)
 {
         long ret = 0x7fffffffffffffff;
         uint64_t tmp;
 

@@ -185,11 +185,11 @@
             : "cc");
 
         return (ret);
 }
 
-extern __inline__ int
+extern __GNU_INLINE int
 signbit(double d)
 {
         long ret;
         __asm__ __volatile__(
             "movmskpd %1, %0\n\t"

@@ -198,17 +198,17 @@
             : "x" (d)
             : "cc");
         return (ret);
 }
 
-extern __inline__ double
+extern __GNU_INLINE double
 sqrt(double d)
 {
         return (__inline_sqrt(d));
 }
 
-extern __inline__ float
+extern __GNU_INLINE float
 sqrtf(float f)
 {
         return (__inline_sqrtf(f));
 }