log: Fix bug introduced on 2012-03-09.

[gnulib.git] / m4 / log.m4

diff --git a/m4/log.m4 b/m4/log.m4
index bc1c378..d217b82 100644 (file)
--- a/m4/log.m4
+++ b/m4/log.m4
@@ -6,6 +6,8 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_LOG],
 [
+  AC_REQUIRE([gl_MATH_H_DEFAULTS])
+
   dnl Determine LOG_LIBM.
   gl_COMMON_DOUBLE_MATHFUNC([log])