Prefer new libm function wrappers for !LIBM_SVID_COMPAT.

The initial obsoletion of SVID libm error handling left the old
wrappers and __kernel_standard still being used for new ports and
static linking, just with macro definitions of _LIB_VERSION and
matherr that meant symbols with those names were never actually used
and the code for different error handling variants could be optimized
out.

This patch cleans things up further by eliminating the
__kernel_standard use for new ports and static linking.  Now, the old
wrappers no longer generate any code in the !LIBM_SVID_COMPAT case,
while the new errno-only wrappers that were added for float128 support
are now also used for float, double and long double in that case.

The changes are generally straightforward.  The w_scalb*_compat
wrappers continue to be used (scalb is obsolescent in the sense of not
being supported for float128, but is present in supported standards -
the 2001 edition of POSIX and earlier XSI versions - so remains
supported for static linking and new ports, as do the float and long
double variants that are existing GNU extensions).  Those wrappers
would only call __kernel_standard in the _LIB_VERSION == _SVID_ case.
Since we would like to be able to compile most of glibc without
optimization, relying on a static function whose only use is under an
if (0) condition being optimized away to avoid an undefined
__kernel_standard reference may not be a good idea.  Thus, the
relevant code in the scalb wrappers has LIBM_SVID_COMPAT conditionals
added to guarantee it's not built at all in the case where
__kernel_standard does not exist.

Just as i386 has its own w_sqrt_compat.c, so w_sqrt.c is also added.
ia64 gets dummy w_*.c to prevent those files being built where they
would conflict with the ia64 libm, as with its existing w_*_compat.c.

Conditions disabling code for !LIBM_SVID_COMPAT are needed in both the
math/ wrappers and in the long double wrappers in ldbl-opt (to avoid
them setting up aliases and symbol versions for undefined symbols).  I
hope that future cleanups to how libm function aliases and symbol
versioning are done will eliminate the need for most of the ldbl-opt
wrappers.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* sysdeps/generic/math-type-macros-double.h: Include
	<math-svid-compat.h>.
	(__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT.
	* sysdeps/generic/math-type-macros-float.h: Include
	<math-svid-compat.h>.
	(__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT.
	* sysdeps/generic/math-type-macros-ldouble.h: Include
	<math-svid-compat.h>.
	(__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT.
	* math/lgamma-compat.h (BUILD_LGAMMA): Include LIBM_SVID_COMPAT
	condition.
	* math/w_acos_compat.c: Condition contents on [LIBM_SVID_COMPAT].
	* math/w_acosf_compat.c: Likewise.
	* math/w_acosh_compat.c: Likewise.
	* math/w_acoshf_compat.c: Likewise.
	* math/w_acoshl_compat.c: Likewise.
	* math/w_acosl_compat.c: Likewise.
	* math/w_asin_compat.c: Likewise.
	* math/w_asinf_compat.c: Likewise.
	* math/w_asinl_compat.c: Likewise.
	* math/w_atan2_compat.c: Likewise.
	* math/w_atan2f_compat.c: Likewise.
	* math/w_atan2l_compat.c: Likewise.
	* math/w_atanh_compat.c: Likewise.
	* math/w_atanhf_compat.c: Likewise.
	* math/w_atanhl_compat.c: Likewise.
	* math/w_cosh_compat.c: Likewise.
	* math/w_coshf_compat.c: Likewise.
	* math/w_coshl_compat.c: Likewise.
	* math/w_exp10_compat.c: Likewise.
	* math/w_exp10f_compat.c: Likewise.
	* math/w_exp10l_compat.c: Likewise.
	* math/w_exp2_compat.c: Likewise.
	* math/w_exp2f_compat.c: Likewise.
	* math/w_exp2l_compat.c: Likewise.
	* math/w_fmod_compat.c: Likewise.
	* math/w_fmodf_compat.c: Likewise.
	* math/w_fmodl_compat.c: Likewise.
	* math/w_hypot_compat.c: Likewise.
	* math/w_hypotf_compat.c: Likewise.
	* math/w_hypotl_compat.c: Likewise.
	* math/w_j0_compat.c: Likewise.
	* math/w_j0f_compat.c: Likewise.
	* math/w_j0l_compat.c: Likewise.
	* math/w_j1_compat.c: Likewise.
	* math/w_j1f_compat.c: Likewise.
	* math/w_j1l_compat.c: Likewise.
	* math/w_jn_compat.c: Likewise.
	* math/w_jnf_compat.c: Likewise.
	* math/w_jnl_compat.c: Likewise.
	* math/w_lgamma_r_compat.c: Likewise.
	* math/w_lgammaf_r_compat.c: Likewise.
	* math/w_lgammal_r_compat.c: Likewise.
	* math/w_log10_compat.c: Likewise.
	* math/w_log10f_compat.c: Likewise.
	* math/w_log10l_compat.c: Likewise.
	* math/w_log2_compat.c: Likewise.
	* math/w_log2f_compat.c: Likewise.
	* math/w_log2l_compat.c: Likewise.
	* math/w_log_compat.c: Likewise.
	* math/w_logf_compat.c: Likewise.
	* math/w_logl_compat.c: Likewise.
	* math/w_pow_compat.c: Likewise.
	* math/w_powf_compat.c: Likewise.
	* math/w_powl_compat.c: Likewise.
	* math/w_remainder_compat.c: Likewise.
	* math/w_remainderf_compat.c: Likewise.
	* math/w_remainderl_compat.c: Likewise.
	* math/w_sinh_compat.c: Likewise.
	* math/w_sinhf_compat.c: Likewise.
	* math/w_sinhl_compat.c: Likewise.
	* math/w_sqrt_compat.c: Likewise.
	* math/w_sqrtf_compat.c: Likewise.
	* math/w_sqrtl_compat.c: Likewise.
	* math/w_tgamma_compat.c: Likewise.
	* math/w_tgammaf_compat.c: Likewise.
	* math/w_tgammal_compat.c: Likewise.
	* math/w_scalb_compat.c (sysv_scalb): Condition definition on
	[LIBM_SVID_COMPAT].
	(__scalb): Condition call to sysv_scalb on [LIBM_SVID_COMPAT].
	* math/w_scalbf_compat.c (sysv_scalbf): Condition definition on
	[LIBM_SVID_COMPAT].
	(__scalbf): Condition call to sysv_scalbf on [LIBM_SVID_COMPAT].
	* math/w_scalbl_compat.c (sysv_scalbl): Condition definition on
	[LIBM_SVID_COMPAT].
	(__scalbl): Condition call to sysv_scalbl on [LIBM_SVID_COMPAT].
	* sysdeps/i386/fpu/w_sqrt.c: New file.
	* sysdeps/ia64/fpu/w_acos.c: Likewise.
	* sysdeps/ia64/fpu/w_acosf.c: Likewise.
	* sysdeps/ia64/fpu/w_acosh.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshf.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshl.c: Likewise.
	* sysdeps/ia64/fpu/w_acosl.c: Likewise.
	* sysdeps/ia64/fpu/w_asin.c: Likewise.
	* sysdeps/ia64/fpu/w_asinf.c: Likewise.
	* sysdeps/ia64/fpu/w_asinl.c: Likewise.
	* sysdeps/ia64/fpu/w_atan2.c: Likewise.
	* sysdeps/ia64/fpu/w_atan2f.c: Likewise.
	* sysdeps/ia64/fpu/w_atan2l.c: Likewise.
	* sysdeps/ia64/fpu/w_atanh.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhf.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhl.c: Likewise.
	* sysdeps/ia64/fpu/w_cosh.c: Likewise.
	* sysdeps/ia64/fpu/w_coshf.c: Likewise.
	* sysdeps/ia64/fpu/w_coshl.c: Likewise.
	* sysdeps/ia64/fpu/w_exp.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10l.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2l.c: Likewise.
	* sysdeps/ia64/fpu/w_expf.c: Likewise.
	* sysdeps/ia64/fpu/w_expl.c: Likewise.
	* sysdeps/ia64/fpu/w_fmod.c: Likewise.
	* sysdeps/ia64/fpu/w_fmodf.c: Likewise.
	* sysdeps/ia64/fpu/w_fmodl.c: Likewise.
	* sysdeps/ia64/fpu/w_hypot.c: Likewise.
	* sysdeps/ia64/fpu/w_hypotf.c: Likewise.
	* sysdeps/ia64/fpu/w_hypotl.c: Likewise.
	* sysdeps/ia64/fpu/w_lgamma_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal_r.c: Likewise.
	* sysdeps/ia64/fpu/w_log.c: Likewise.
	* sysdeps/ia64/fpu/w_log10.c: Likewise.
	* sysdeps/ia64/fpu/w_log10f.c: Likewise.
	* sysdeps/ia64/fpu/w_log10l.c: Likewise.
	* sysdeps/ia64/fpu/w_log2.c: Likewise.
	* sysdeps/ia64/fpu/w_log2f.c: Likewise.
	* sysdeps/ia64/fpu/w_log2l.c: Likewise.
	* sysdeps/ia64/fpu/w_logf.c: Likewise.
	* sysdeps/ia64/fpu/w_logl.c: Likewise.
	* sysdeps/ia64/fpu/w_pow.c: Likewise.
	* sysdeps/ia64/fpu/w_powf.c: Likewise.
	* sysdeps/ia64/fpu/w_powl.c: Likewise.
	* sysdeps/ia64/fpu/w_remainder.c: Likewise.
	* sysdeps/ia64/fpu/w_remainderf.c: Likewise.
	* sysdeps/ia64/fpu/w_remainderl.c: Likewise.
	* sysdeps/ia64/fpu/w_sinh.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhf.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhl.c: Likewise.
	* sysdeps/ia64/fpu/w_sqrt.c: Likewise.
	* sysdeps/ia64/fpu/w_sqrtf.c: Likewise.
	* sysdeps/ia64/fpu/w_sqrtl.c: Likewise.
	* sysdeps/ia64/fpu/w_tgamma.c: Likewise.
	* sysdeps/ia64/fpu/w_tgammaf.c: Likewise.
	* sysdeps/ia64/fpu/w_tgammal.c: Likewise.
	* sysdeps/ieee754/dbl-64/w_exp_compat.c: Condition contents on
	[LIBM_SVID_COMPAT].
	* sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise.
	* sysdeps/ieee754/k_standard.c: Likewise.
	* sysdeps/ieee754/k_standardf.c: Likewise.
	* sysdeps/ieee754/k_standardl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-64-128/w_expl_compat.c: Condition
	long_double_symbol call on [LIBM_SVID_COMPAT].
	* sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_acosl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_asinl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_coshl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_j0l_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_j1l_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_jnl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_log10l_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_log2l_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_logl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_powl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c: Condition
	long_double_symbol and compat_symbol calls on [LIBM_SVID_COMPAT].

30 files changed, 86 insertions, 24 deletions

diff --git a/sysdeps/ieee754/dbl-64/w_exp_compat.c b/sysdeps/ieee754/dbl-64/w_exp_compat.c
index 69ec0a1ebc..98aa5b76a0 100644
--- a/sysdeps/ieee754/dbl-64/w_exp_compat.c
+++ b/sysdeps/ieee754/dbl-64/w_exp_compat.c
@@ -20,6 +20,7 @@
 #include <math_private.h>
 #include <math-svid-compat.h>
 
+#if LIBM_SVID_COMPAT
 /* wrapper exp */
 double
 __exp (double x)
@@ -33,7 +34,8 @@ __exp (double x)
 }
 hidden_def (__exp)
 weak_alias (__exp, exp)
-#ifdef NO_LONG_DOUBLE
+# ifdef NO_LONG_DOUBLE
 strong_alias (__exp, __expl)
 weak_alias (__exp, expl)
+# endif
 #endif
diff --git a/sysdeps/ieee754/flt-32/w_expf_compat.c b/sysdeps/ieee754/flt-32/w_expf_compat.c
index 8a1fa51e46..a38ff4082d 100644
--- a/sysdeps/ieee754/flt-32/w_expf_compat.c
+++ b/sysdeps/ieee754/flt-32/w_expf_compat.c
@@ -20,6 +20,7 @@
 #include <math_private.h>
 #include <math-svid-compat.h>
 
+#if LIBM_SVID_COMPAT
 /* wrapper expf */
 float
 __expf (float x)
@@ -33,3 +34,4 @@ __expf (float x)
 }
 hidden_def (__expf)
 weak_alias (__expf, expf)
+#endif
diff --git a/sysdeps/ieee754/k_standard.c b/sysdeps/ieee754/k_standard.c
index 8f906bd604..f74f9c712e 100644
--- a/sysdeps/ieee754/k_standard.c
+++ b/sysdeps/ieee754/k_standard.c
@@ -21,23 +21,25 @@ static char rcsid[] = "$NetBSD: k_standard.c,v 1.6 1995/05/10 20:46:35 jtc Exp $
 
 #include <assert.h>
 
-#ifndef _USE_WRITE
-#include <stdio.h>			/* fputs(), stderr */
-#define	WRITE2(u,v)	fputs(u, stderr)
-#else	/* !defined(_USE_WRITE) */
-#include <unistd.h>			/* write */
-#define	WRITE2(u,v)	write(2, u, v)
-#undef fflush
-#endif	/* !defined(_USE_WRITE) */
+#if LIBM_SVID_COMPAT
+
+# ifndef _USE_WRITE
+#  include <stdio.h>			/* fputs(), stderr */
+#  define	WRITE2(u,v)	fputs(u, stderr)
+# else	/* !defined(_USE_WRITE) */
+#  include <unistd.h>			/* write */
+#  define	WRITE2(u,v)	write(2, u, v)
+#  undef fflush
+# endif	/* !defined(_USE_WRITE) */
 
 /* XXX gcc versions until now don't delay the 0.0/0.0 division until
    runtime but produce NaN at compile time.  This is wrong since the
    exceptions are not set correctly.  */
-#if 0
+# if 0
 static const double zero = 0.0;	/* used as const */
-#else
+# else
 static double zero = 0.0;	/* used as const */
-#endif
+# endif
 
 /*
  * Standard conformance (non-IEEE) on exception cases.
@@ -97,21 +99,21 @@ double
 __kernel_standard(double x, double y, int type)
 {
 	struct exception exc;
-#ifndef HUGE_VAL	/* this is the only routine that uses HUGE_VAL */
-#define HUGE_VAL inf
+# ifndef HUGE_VAL	/* this is the only routine that uses HUGE_VAL */
+# define HUGE_VAL inf
 	double inf = 0.0;
 
 	SET_HIGH_WORD(inf,0x7ff00000);	/* set inf to infinite */
-#endif
+# endif
 
 	/* The SVID struct exception uses a field "char *name;".  */
-#define CSTR(func) ((char *) (type < 100				\
+# define CSTR(func) ((char *) (type < 100				\
 			      ? func					\
 			      : (type < 200 ? func "f" : func "l")))
 
-#ifdef _USE_WRITE
+# ifdef _USE_WRITE
 	(void) fflush(stdout);
-#endif
+# endif
 	exc.arg1 = x;
 	exc.arg2 = y;
 	switch(type) {
@@ -945,3 +947,4 @@ __kernel_standard(double x, double y, int type)
 	}
 	return exc.retval;
 }
+#endif
diff --git a/sysdeps/ieee754/k_standardf.c b/sysdeps/ieee754/k_standardf.c
index 85b2003daf..62d25d22db 100644
--- a/sysdeps/ieee754/k_standardf.c
+++ b/sysdeps/ieee754/k_standardf.c
@@ -21,6 +21,7 @@
 #include <math-svid-compat.h>
 
 
+#if LIBM_SVID_COMPAT
 /* Handle errors for a libm function as specified by TYPE (see
    comments in k_standard.c for details), with arguments X and Y,
    returning the appropriate return value for that function.  */
@@ -30,3 +31,4 @@ __kernel_standard_f (float x, float y, int type)
 {
   return __kernel_standard (x, y, type);
 }
+#endif
diff --git a/sysdeps/ieee754/k_standardl.c b/sysdeps/ieee754/k_standardl.c
index 783fd0b87d..484ec91354 100644
--- a/sysdeps/ieee754/k_standardl.c
+++ b/sysdeps/ieee754/k_standardl.c
@@ -38,6 +38,8 @@
 #include <errno.h>
 
 
+#if LIBM_SVID_COMPAT
+
 static double zero = 0.0;
 
 /* Handle errors for a libm function as specified by TYPE (see
@@ -106,3 +108,4 @@ __kernel_standard_l (long double x, long double y, int type)
       return __kernel_standard (dx, dy, type);
     }
 }
+#endif
diff --git a/sysdeps/ieee754/ldbl-128/w_expl_compat.c b/sysdeps/ieee754/ldbl-128/w_expl_compat.c
index e0fa9e3501..ec076deaad 100644
--- a/sysdeps/ieee754/ldbl-128/w_expl_compat.c
+++ b/sysdeps/ieee754/ldbl-128/w_expl_compat.c
@@ -26,18 +26,20 @@ static char rcsid[] = "$NetBSD: $";
 #include <math_private.h>
 #include <math-svid-compat.h>
 
+#if LIBM_SVID_COMPAT
 long double __expl(long double x)	/* wrapper exp */
 {
-#ifdef _IEEE_LIBM
+# ifdef _IEEE_LIBM
 	return __ieee754_expl(x);
-#else
+# else
 	long double z = __ieee754_expl (x);
 	if (__glibc_unlikely (!isfinite (z) || z == 0)
 	    && isfinite (x) && _LIB_VERSION != _IEEE_)
 	  return __kernel_standard_l (x, x, 206 + !!signbit (x));
 
 	return z;
-#endif
+# endif
 }
 hidden_def (__expl)
 weak_alias (__expl, expl)
+#endif
diff --git a/sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c b/sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c
index 019a48fb0d..53948a96e6 100644
--- a/sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c
+++ b/sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c
@@ -3,6 +3,7 @@
 #include <math-svid-compat.h>
 #include <math_ldbl_opt.h>
 
+#if LIBM_SVID_COMPAT
 long double __expl(long double x)	/* wrapper exp  */
 {
   long double z;
@@ -20,3 +21,4 @@ long double __expl(long double x)	/* wrapper exp  */
 }
 hidden_def (__expl)
 long_double_symbol (libm, __expl, expl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-64-128/w_expl_compat.c b/sysdeps/ieee754/ldbl-64-128/w_expl_compat.c
index 37c153e2a4..037e8bf348 100644
--- a/sysdeps/ieee754/ldbl-64-128/w_expl_compat.c
+++ b/sysdeps/ieee754/ldbl-64-128/w_expl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <sysdeps/ieee754/ldbl-128/w_expl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __expl, expl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-96/w_expl_compat.c b/sysdeps/ieee754/ldbl-96/w_expl_compat.c
index c9e6003a43..ae9ab586cb 100644
--- a/sysdeps/ieee754/ldbl-96/w_expl_compat.c
+++ b/sysdeps/ieee754/ldbl-96/w_expl_compat.c
@@ -20,6 +20,7 @@
 #include <math_private.h>
 #include <math-svid-compat.h>
 
+#if LIBM_SVID_COMPAT
 /* wrapper expl */
 long double
 __expl (long double x)
@@ -33,3 +34,4 @@ __expl (long double x)
 }
 hidden_def (__expl)
 weak_alias (__expl, expl)
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c b/sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c
index df4338d9fa..f66964a138 100644
--- a/sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_acoshl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __acoshl, acoshl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_acosl_compat.c b/sysdeps/ieee754/ldbl-opt/w_acosl_compat.c
index 5efc99024c..ff33e9a9ed 100644
--- a/sysdeps/ieee754/ldbl-opt/w_acosl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_acosl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_acosl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __acosl, acosl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_asinl_compat.c b/sysdeps/ieee754/ldbl-opt/w_asinl_compat.c
index 087fab25bb..a53f1cb1f5 100644
--- a/sysdeps/ieee754/ldbl-opt/w_asinl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_asinl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_asinl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __asinl, asinl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c b/sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c
index 6b12209625..c70f77e4c4 100644
--- a/sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_atan2l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __atan2l, atan2l);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c b/sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c
index 49bae1ee8f..67450c5859 100644
--- a/sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_atanhl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __atanhl, atanhl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_coshl_compat.c b/sysdeps/ieee754/ldbl-opt/w_coshl_compat.c
index a8808778ba..392511bab6 100644
--- a/sysdeps/ieee754/ldbl-opt/w_coshl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_coshl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_coshl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __coshl, coshl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c b/sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c
index cf154882fe..5a52a75ba5 100644
--- a/sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c
@@ -4,15 +4,17 @@
 #undef compat_symbol
 #define compat_symbol(l,n,a,v)
 #include <math/w_exp10l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __exp10l, exp10l);
-#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
+# if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
 /* compat_symbol was undefined and redefined above to avoid the
    default pow10l compat symbol at version GLIBC_2_1 (as for ldbl-opt
    configurations, that version should have the alias to exp10).  So
    it now needs to be redefined to define the compat symbol at version
    LONG_DOUBLE_COMPAT_VERSION.  */
-# undef compat_symbol
-# define compat_symbol(lib, local, symbol, version)	\
+#  undef compat_symbol
+#  define compat_symbol(lib, local, symbol, version)	\
   compat_symbol_reference (lib, local, symbol, version)
 compat_symbol (libm, __pow10l, pow10l, LONG_DOUBLE_COMPAT_VERSION);
+# endif
 #endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c b/sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c
index 88fe0ac4d2..12419e3060 100644
--- a/sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_fmodl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __fmodl, fmodl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c b/sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c
index 68e3997489..b87bac7ce8 100644
--- a/sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_hypotl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __hypotl, hypotl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_j0l_compat.c b/sysdeps/ieee754/ldbl-opt/w_j0l_compat.c
index 9050657e03..8fc865128d 100644
--- a/sysdeps/ieee754/ldbl-opt/w_j0l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_j0l_compat.c
@@ -2,5 +2,7 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_j0l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __j0l, j0l);
 long_double_symbol (libm, __y0l, y0l);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_j1l_compat.c b/sysdeps/ieee754/ldbl-opt/w_j1l_compat.c
index 4ed9e2dd12..85b3feed9f 100644
--- a/sysdeps/ieee754/ldbl-opt/w_j1l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_j1l_compat.c
@@ -2,5 +2,7 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_j1l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __j1l, j1l);
 long_double_symbol (libm, __y1l, y1l);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_jnl_compat.c b/sysdeps/ieee754/ldbl-opt/w_jnl_compat.c
index d22ee54997..9b2c998536 100644
--- a/sysdeps/ieee754/ldbl-opt/w_jnl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_jnl_compat.c
@@ -2,5 +2,7 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_jnl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __jnl, jnl);
 long_double_symbol (libm, __ynl, ynl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c b/sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c
index 6fdf2bba87..431aa5d15c 100644
--- a/sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_lgammal_r_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __lgammal_r, lgammal_r);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_log10l_compat.c b/sysdeps/ieee754/ldbl-opt/w_log10l_compat.c
index 17de3e7856..6eb9ea7928 100644
--- a/sysdeps/ieee754/ldbl-opt/w_log10l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_log10l_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_log10l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __log10l, log10l);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_log2l_compat.c b/sysdeps/ieee754/ldbl-opt/w_log2l_compat.c
index 3c5e734573..1507e937b8 100644
--- a/sysdeps/ieee754/ldbl-opt/w_log2l_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_log2l_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_log2l_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __log2l, log2l);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_logl_compat.c b/sysdeps/ieee754/ldbl-opt/w_logl_compat.c
index 2b55842139..6b71ef2659 100644
--- a/sysdeps/ieee754/ldbl-opt/w_logl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_logl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_logl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __logl, logl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_powl_compat.c b/sysdeps/ieee754/ldbl-opt/w_powl_compat.c
index 1897cf1c63..c6f8d859be 100644
--- a/sysdeps/ieee754/ldbl-opt/w_powl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_powl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_powl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __powl, powl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c b/sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c
index b2ce5c9563..849d2db425 100644
--- a/sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c
@@ -2,6 +2,8 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_remainderl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __remainderl, remainderl);
 strong_alias (__remainderl, __dreml)
 long_double_symbol (libm, __dreml, dreml);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c b/sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c
index 305ed82357..8fce55c74f 100644
--- a/sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_sinhl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __sinhl, sinhl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c b/sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c
index 1e4526f2c6..05be917772 100644
--- a/sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_sqrtl_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __sqrtl, sqrtl);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c b/sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c
index aaf5403522..8c201ca8e2 100644
--- a/sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c
+++ b/sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c
@@ -2,4 +2,6 @@
 #undef weak_alias
 #define weak_alias(n,a)
 #include <math/w_tgammal_compat.c>
+#if LIBM_SVID_COMPAT
 long_double_symbol (libm, __tgammal, tgammal);
+#endif