logb: Provide missing declaration for Cygwin.

[gnulib.git] / modules / logb

diff --git a/modules/logb b/modules/logb
index 8816840..7c93afb 100644 (file)
--- a/modules/logb
+++ b/modules/logb
@@ -2,12 +2,15 @@ Description:
 logb() function: get exponent.
 
 Files:
+m4/logb.m4
 m4/mathfunc.m4
 
 Depends-on:
+math
 
 configure.ac:
-gl_MATHFUNC([logb], [double], [(double)])
+gl_FUNC_LOGB
+gl_MATH_MODULE_INDICATOR([logb])
 
 Makefile.am: