Update.

[bpt/guile.git] / configure.in

diff --git a/configure.in b/configure.in
index c25778e..37e9b3d 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -392,7 +392,11 @@ fi
 
 AC_MSG_CHECKING(for working IPv6 support)
 AC_CACHE_VAL(guile_cv_have_ipv6,
-[AC_TRY_COMPILE([#include <netinet/in.h>
+[AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include <netinet/in.h>
 #include <sys/socket.h>],
 [struct sockaddr_in6 a;  a.sin6_family = AF_INET6;],
 guile_cv_have_ipv6=yes, guile_cv_have_ipv6=no)])
@@ -404,7 +408,11 @@ fi
 # included in rfc2553 but not in older implementations, e.g., glibc 2.1.3.
 AC_MSG_CHECKING(whether sockaddr_in6 has sin6_scope_id)
 AC_CACHE_VAL(guile_cv_have_sin6_scope_id,
-[AC_TRY_COMPILE([#include <netinet/in.h>],
+[AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include <netinet/in.h>],
 [struct sockaddr_in6 sok;  sok.sin6_scope_id = 0;],
 guile_cv_have_sin6_scope_id=yes, guile_cv_have_sin6_scope_id=no)])
 AC_MSG_RESULT($guile_cv_have_sin6_scope_id)
@@ -495,6 +503,10 @@ fi
 
 AC_REPLACE_FUNCS(inet_aton putenv strerror memmove mkstemp)
 
+AC_CHECK_HEADERS(floatingpoint.h ieeefp.h nan.h)
+
+AC_CHECK_FUNCS(finite isinf isnan)
+
 # When testing for the presence of alloca, we need to add alloca.o
 # explicitly to LIBOBJS to make sure that it is translated to
 # `alloca.lo' for libtool later on.  This can and should be done more cleanly.