pass arg to sqrt.

diff --git a/configure.in b/configure.in
index bdad8607d934889b96a91b1078663fa099aa7bf8..69f3cea0e4b963ab929efd8582fac8755f7ba0c1 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1158,7 +1158,7 @@ AC_FUNC_ALLOCA
 
 # fmod, logb, and frexp are found in -lm on most systems.
 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
-AC_CHECK_LIB(m, sqrt)
+AC_CHECK_LIB(m, sqrt(0.0) + t)
 AC_CHECK_FUNCS(gettimeofday gethostname dup2 rename closedir mkdir rmdir \
 random lrand48 bcopy bcmp logb frexp fmod drem ftime res_init setsid \
 strerror fpathconf select mktime eaccess getpagesize)