copysign: Does not require -lm on glibc systems.

[gnulib.git] / m4 / mathfunc.m4

diff --git a/m4/mathfunc.m4 b/m4/mathfunc.m4
index f6e091b..92faac9 100644 (file)
--- a/m4/mathfunc.m4
+++ b/m4/mathfunc.m4
@@ -1,4 +1,4 @@
-# mathfunc.m4 serial 4
+# mathfunc.m4 serial 5
 dnl Copyright (C) 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -65,8 +65,8 @@ AC_DEFUN([gl_MATHFUNC],
 # It sets FUNC_LIBM to empty or "-lm" accordingly.
 # FUNC must be one of the following functions, that are present on all systems
 # and provided by libm on all systems except MacOS X, BeOS, Haiku:
-#   acos asin atan atan2 cbrt copysign cos cosh erf erfc exp fmod hypot j0 j1
-#   jn lgamma log log10 log1p pow remainder sin sinh sqrt tan tanh y0 y1 yn
+#   acos asin atan atan2 cbrt cos cosh erf erfc exp fmod hypot j0 j1 jn lgamma
+#   log log10 log1p pow remainder sin sinh sqrt tan tanh y0 y1 yn
 
 AC_DEFUN([gl_COMMON_DOUBLE_MATHFUNC],
 [
@@ -86,7 +86,6 @@ AC_DEFUN([gl_COMMON_DOUBLE_MATHFUNC_TEST],
   dnl gl_MATHFUNC([atan], [double], [(double)])
   dnl gl_MATHFUNC([atan2], [double], [(double, double)])
   dnl gl_MATHFUNC([cbrt], [double], [(double)])
-  dnl gl_MATHFUNC([copysign], [double], [(double, double)])
   dnl gl_MATHFUNC([cos], [double], [(double)])
   dnl gl_MATHFUNC([cosh], [double], [(double)])
   dnl gl_MATHFUNC([erf], [double], [(double)])