newlib: libm: skip "long double" complex functions if long double != double

The rest of "long double" functions aren't compiled with long double
and double are not the same.  Do the same for all complex functions.

Signed-off-by: Pietro Monteiro <pietro@sociotechnical.xyz>

newlib/libm/complex/cargl.c

@@ -7,12 +7,11 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double
 cargl(long double complex z)
-{     
-       #ifdef _LDBL_EQ_DBL
+{
          return carg (z);
-       #else
-         return atan2l (cimagl (z), creall (z));
-       #endif
 }
+#endif

newlib/libm/complex/catanl.c

@@ -33,6 +33,8 @@
 #include <math.h>
 #include "cephes_subrl.h"
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 #ifdef __weak_alias
 __weak_alias(catanl, _catanl)
 #endif
@@ -72,4 +74,4 @@ ovrf:
 	w = HUGE_VALL + HUGE_VALL * I;
 	return w;
 }
-
+#endif

newlib/libm/complex/ccoshl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 ccoshl(long double complex z)
 {
@@ -43,3 +45,4 @@ ccoshl(long double complex z)
 	w = coshl(x) * cosl(y) + (sinhl(x) * sinl(y)) * I;
 	return w;
 }
+#endif

newlib/libm/complex/ccosl.c

@@ -33,6 +33,8 @@
 #include <math.h>
 #include "cephes_subrl.h"
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 ccosl(long double complex z)
 {
@@ -43,3 +45,4 @@ ccosl(long double complex z)
 	w = cosl(creall(z)) * ch - (sinl(creall(z)) * sh) * I;
 	return w;
 }
+#endif

newlib/libm/complex/cephes_subrl.c

@@ -35,6 +35,8 @@
 
 /* calculate cosh and sinh */
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 void
 _cchshl(long double x, long double *c, long double *s)
 {
@@ -51,6 +53,7 @@ _cchshl(long double x, long double *c, long double *s)
 		*c = e + ei;
 	}
 }
+#endif
 
 /* Program to subtract nearest integer multiple of PI */
 
@@ -85,6 +88,8 @@ _redupil(long double x)
 
 /* Taylor series expansion for cosh(2y) - cos(2x) */
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double
 _ctansl(long double complex z)
 {
@@ -126,3 +131,4 @@ _ctansl(long double complex z)
 	} while (fabsl(t/d) > MACHEPL);
 	return d;
 }
+#endif

newlib/libm/complex/cexpl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 cexpl(long double complex z)
 {
@@ -44,3 +46,4 @@ cexpl(long double complex z)
 	w = r * cosl(y) + r * sinl(y) * I;
 	return w;
 }
+#endif

newlib/libm/complex/clogl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 clogl(long double complex z)
 {
@@ -44,3 +46,4 @@ clogl(long double complex z)
 	w = p + rr * I;
 	return w;
 }
+#endif

newlib/libm/complex/cpowl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 cpowl(long double complex a, long double complex z)
 {
@@ -54,3 +56,4 @@ cpowl(long double complex a, long double complex z)
 	w = r * cosl(theta) + (r * sinl(theta)) * I;
 	return w;
 }
+#endif

newlib/libm/complex/cprojl.c

@@ -45,6 +45,9 @@ __RCSID("$NetBSD: cprojl.c,v 1.7 2014/10/10 00:48:18 christos Exp $");
  *
  * INFINITY + I * copysign(0.0, cimag(z))
  */
+
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 cprojl(long double complex z)
 {
@@ -62,3 +65,4 @@ cprojl(long double complex z)
 
 	return (w.z);
 }
+#endif

newlib/libm/complex/csinhl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 csinhl(long double complex z)
 {
@@ -43,3 +45,4 @@ csinhl(long double complex z)
 	w = sinhl(x) * cosl(y) + (coshl(x) * sinl(y)) * I;
 	return w;
 }
+#endif

newlib/libm/complex/csinl.c

@@ -33,6 +33,8 @@
 #include <math.h>
 #include "cephes_subrl.h"
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 csinl(long double complex z)
 {
@@ -43,3 +45,4 @@ csinl(long double complex z)
 	w = sinl(creall(z)) * ch + (cosl(creall(z)) * sh) * I;
 	return w;
 }
+#endif

newlib/libm/complex/csqrtl.c

@@ -49,6 +49,8 @@ __RCSID("$NetBSD: csqrtl.c,v 1.2 2014/10/11 00:43:51 christos Exp $");
 
 #define cpackl(r, i) ((r) + (i) * I)
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 csqrtl(long double complex z)
 {
@@ -110,3 +112,4 @@ csqrtl(long double complex z)
 	else
 		return (result);
 }
+#endif

newlib/libm/complex/ctanhl.c

@@ -32,6 +32,8 @@
 #include <complex.h>
 #include <math.h>
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 ctanhl(long double complex z)
 {
@@ -45,3 +47,4 @@ ctanhl(long double complex z)
 
 	return w;
 }
+#endif

newlib/libm/complex/ctanl.c

@@ -34,6 +34,8 @@
 #include <math.h>
 #include "cephes_subrl.h"
 
+/* On platforms where long double is as wide as double.  */
+#ifdef _LDBL_EQ_DBL
 long double complex
 ctanl(long double complex z)
 {
@@ -54,3 +56,4 @@ ctanl(long double complex z)
 	w = sinl(2.0L * creall(z)) / d + (sinhl(2.0L * cimagl(z)) / d) * I;
 	return w;
 }
+#endif