diff -uwrN aria2c-0.13.2+1.orig/configure.ac aria2c-0.13.2+1/configure.ac
--- aria2c-0.13.2+1.orig/configure.ac	2008-05-27 08:39:09.000000000 -0700
+++ aria2c-0.13.2+1/configure.ac	2008-06-07 13:54:46.015250000 -0700
@@ -183,6 +183,9 @@
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([__argz_count __argz_next __argz_stringify atexit daemon ftruncate getcwd gethostbyaddr gethostbyname getpagesize inet_ntoa memchr memmove mempcpy memset mkdir munmap nl_langinfo posix_memalign putenv rmdir select setlocale sleep socket stpcpy strcasecmp strchr strcspn strdup strerror strncasecmp strstr strtol strtoul strtoull tzset unsetenv usleep])
 
+AC_CHECK_FUNCS([asctime_r],
+	[AM_CONDITIONAL([HAVE_ASCTIME_R], true)],
+	[AM_CONDITIONAL([HAVE_ASCTIME_R], false)])
 AC_CHECK_FUNCS([basename],
 	[AM_CONDITIONAL([HAVE_BASENAME], true)],
 	[AM_CONDITIONAL([HAVE_BASENAME], false)])
@@ -207,6 +210,9 @@
 AC_CHECK_FUNCS([timegm],
 	[AM_CONDITIONAL([HAVE_TIMEGM], true)],
 	[AM_CONDITIONAL([HAVE_TIMEGM], false)])
+AC_CHECK_FUNCS([vasprintf],
+	[AM_CONDITIONAL([HAVE_VASPRINTF], true)],
+	[AM_CONDITIONAL([HAVE_VASPRINTF], false)])
 
 case "$target" in
 	*mingw*)
diff -uwrN aria2c-0.13.2+1.orig/src/Makefile.am aria2c-0.13.2+1/src/Makefile.am
--- aria2c-0.13.2+1.orig/src/Makefile.am	2008-05-19 03:25:38.000000000 -0700
+++ aria2c-0.13.2+1/src/Makefile.am	2008-06-07 13:56:30.452750000 -0700
@@ -422,6 +422,10 @@
 SRCS += ExpatMetalinkProcessor.cc ExpatMetalinkProcessor.h
 endif # ENABLE_LIBEXPAT
 
+if !HAVE_ASCTIME_R
+SRCS += asctime_r.c asctime_r.h
+endif # !HAVE_ASCTIME_R
+
 if !HAVE_BASENAME
 SRCS += libgen.c libgen.h
 endif # !HAVE_BASENAME