Author: theraven
Date: Sat Nov 12 19:55:48 2011
New Revision: 227472
URL: http://svn.freebsd.org/changeset/base/227472

Log:
  Expose the unimplemented libm functions in the math.h header.  This allows 
C++'s <cmath> to work without the compiler complaining that the C++ versions 
are calling implicitly-declared functions.  You will still get a linker error 
when they are called.  OpenBSD 5.0 claims to fully implement the C99 <math.h> 
stuff, so might be worth investigating...
  
  Reviewed by:  das
  Approved by:  dim (mentor)

Modified:
  head/lib/msun/src/math.h

Modified: head/lib/msun/src/math.h
==============================================================================
--- head/lib/msun/src/math.h    Sat Nov 12 19:45:56 2011        (r227471)
+++ head/lib/msun/src/math.h    Sat Nov 12 19:55:48 2011        (r227472)
@@ -395,32 +395,32 @@ float     significandf(float);
  * long double versions of ISO/POSIX math functions
  */
 #if __ISO_C_VISIBLE >= 1999
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    acoshl(long double);
 #endif
 long double    acosl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    asinhl(long double);
 #endif
 long double    asinl(long double);
 long double    atan2l(long double, long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    atanhl(long double);
 #endif
 long double    atanl(long double);
 long double    cbrtl(long double);
 long double    ceill(long double);
 long double    copysignl(long double, long double) __pure2;
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    coshl(long double);
 #endif
 long double    cosl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    erfcl(long double);
 long double    erfl(long double);
 #endif
 long double    exp2l(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    expl(long double);
 long double    expm1l(long double);
 #endif
@@ -435,18 +435,18 @@ long double       frexpl(long double value, in
 long double    hypotl(long double, long double);
 int            ilogbl(long double) __pure2;
 long double    ldexpl(long double, int);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    lgammal(long double);
 #endif
 long long      llrintl(long double);
 long long      llroundl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    log10l(long double);
 long double    log1pl(long double);
 long double    log2l(long double);
 #endif
 long double    logbl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    logl(long double);
 #endif
 long           lrintl(long double);
@@ -458,7 +458,7 @@ long double nextafterl(long double, long
 double         nexttoward(double, long double);
 float          nexttowardf(float, long double);
 long double    nexttowardl(long double, long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    powl(long double, long double);
 #endif
 long double    remainderl(long double, long double);
@@ -467,16 +467,16 @@ long double       rintl(long double);
 long double    roundl(long double);
 long double    scalblnl(long double, long);
 long double    scalbnl(long double, int);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    sinhl(long double);
 #endif
 long double    sinl(long double);
 long double    sqrtl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    tanhl(long double);
 #endif
 long double    tanl(long double);
-#if 0
+#if _DECLARE_C99_LDBL_MATH
 long double    tgammal(long double);
 #endif
 long double    truncl(long double);
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