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Diffstat (limited to 'sysdeps/libm-ieee754/w_lgamma.c')
-rw-r--r--sysdeps/libm-ieee754/w_lgamma.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/sysdeps/libm-ieee754/w_lgamma.c b/sysdeps/libm-ieee754/w_lgamma.c
index fbb933f9fc..bbb53f53e8 100644
--- a/sysdeps/libm-ieee754/w_lgamma.c
+++ b/sysdeps/libm-ieee754/w_lgamma.c
@@ -23,8 +23,6 @@ static char rcsid[] = "$NetBSD: w_lgamma.c,v 1.6 1995/05/10 20:49:24 jtc Exp $";
 #include "math.h"
 #include "math_private.h"
 
-extern int __signgam;
-
 #ifdef __STDC__
 	double __lgamma(double x)
 #else
@@ -33,10 +31,14 @@ extern int __signgam;
 #endif
 {
 #ifdef _IEEE_LIBM
-	return __ieee754_lgamma_r(x,&__signgam);
+	return __ieee754_lgamma_r(x,&signgam);
 #else
         double y;
-        y = __ieee754_lgamma_r(x,&__signgam);
+	int local_signgam;
+        y = __ieee754_lgamma_r(x,&local_signgam);
+	if (_LIB_VERSION != _ISOC_)
+	  /* ISO C 9x does not define the global variable.  */
+	  signgam = local_signgam;
         if(_LIB_VERSION == _IEEE_) return y;
         if(!__finite(y)&&__finite(x)) {
             if(__floor(x)==x&&x<=0.0)