Move wrappers to libm-compat-calls-auto

This commit moves one step towards the deprecation of wrappers that
use _LIB_VERSION / matherr / __kernel_standard functionality, by
adding the suffix '_compat' to their filenames and adjusting Makefiles
and #includes accordingly.

New template wrappers that do not use such functionality will be added
by future patches and will be first used by the float128 wrappers.

1 files changed, 45 insertions, 0 deletions

diff --git a/math/w_tgammal_compat.c b/math/w_tgammal_compat.c
new file mode 100644
index 0000000000..50de8cf906
--- /dev/null
+++ b/math/w_tgammal_compat.c
@@ -0,0 +1,45 @@
+/* w_gammal.c -- long double version of w_gamma.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/* long double gammal(double x)
+ * Return the Gamma function of x.
+ */
+
+#include <errno.h>
+#include <math.h>
+#include <math_private.h>
+
+long double
+__tgammal(long double x)
+{
+	int local_signgam;
+	long double y = __ieee754_gammal_r(x,&local_signgam);
+
+	if(__glibc_unlikely (!isfinite (y) || y == 0)
+	   && (isfinite (x) || (isinf (x) && x < 0.0))
+	   && _LIB_VERSION != _IEEE_) {
+	  if(x==0.0)
+	    return __kernel_standard_l(x,x,250); /* tgamma pole */
+	  else if(__floorl(x)==x&&x<0.0L)
+	    return __kernel_standard_l(x,x,241); /* tgamma domain */
+	  else if (y == 0)
+	    __set_errno (ERANGE); /* tgamma underflow */
+	  else
+	    return __kernel_standard_l(x,x,240); /* tgamma overflow */
+	}
+	return local_signgam < 0 ? - y : y;
+}
+weak_alias (__tgammal, tgammal)