Get rid of test for -lsun (very old IRIX); add test for -lm (needed on
enough platforms).
diff --git a/config.h.in b/config.h.in
index f2393da..6d01d3b 100644
--- a/config.h.in
+++ b/config.h.in
@@ -396,3 +396,6 @@
/* Define if you have the ieee library (-lieee). */
#undef HAVE_LIBIEEE
+
+/* Define if you have the m library (-lm). */
+#undef HAVE_LIBM
diff --git a/configure.in b/configure.in
index af122df..e96402c 100644
--- a/configure.in
+++ b/configure.in
@@ -345,14 +345,14 @@
# checks for libraries
AC_CHECK_LIB(dl, dlopen) # Dynamic linking for SunOS/Solaris and SYSV
AC_CHECK_LIB(dld, shl_load) # Dynamic linking for HP-UX
-AC_CHECK_LIB(sun, getpwnam) # NIS (== YP) interface for IRIX 4
+AC_CHECK_LIB(m, pow) # Std math lib -- assume needed if it exists
# Most SVR4 platforms (e.g. Solaris) need -lsocket and -lnsl.
# However on SGI IRIX, these exist but are broken.
-if test "$ac_sys_system" != IRIX
-then
+case "$ac_sys_system" in IRIX*) ;;
+*)
AC_CHECK_LIB(nsl, t_open, [LIBS="-lnsl $LIBS"]) # SVR4
AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets
-fi
+;; esac
AC_MSG_CHECKING(for --with-libs)
AC_ARG_WITH(libs, [--with-libs='lib1 ...' link against additional libs], [