X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=modules%2Fisnanf;h=8b9e3a138824ab7817a4fe8981a43d9926a36092;hb=885f87d00ee7e3527370c1b864e340c09826e1e6;hp=6ac3968fd1e147601544c38dd7277bd39fc4c3bf;hpb=78008cd2e8a58cda0d3c279ba0ee20dbd7598317;p=gnulib.git

diff --git a/modules/isnanf b/modules/isnanf
index 6ac3968fd..8b9e3a138 100644
--- a/modules/isnanf
+++ b/modules/isnanf
@@ -15,6 +15,13 @@ memcmp
 
 configure.ac:
 gl_FUNC_ISNANF
+m4_ifdef([gl_ISNAN], [
+  AC_REQUIRE([gl_ISNAN])
+])
+if test $HAVE_ISNANF = 0 || test $REPLACE_ISNAN = 1; then
+  AC_LIBOBJ([isnanf])
+  gl_PREREQ_ISNANF
+fi
 gl_MATH_MODULE_INDICATOR([isnanf])
 
 Makefile.am: