diff --git a/lbtt/ChangeLog b/lbtt/ChangeLog
index 4a72b3b37..76a3abc88 100644
--- a/lbtt/ChangeLog
+++ b/lbtt/ChangeLog
@@ -1,3 +1,7 @@
+2012-04-27  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
+
+	* configure.ac: Do not check for mkstemp(), it is not used.
+
 2010-04-07  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
 
 	Accept W and M in lbtt-translate --spot.
diff --git a/lbtt/configure.ac b/lbtt/configure.ac
index 21cdee004..a07219d0e 100644
--- a/lbtt/configure.ac
+++ b/lbtt/configure.ac
@@ -145,7 +145,7 @@ AC_C_INLINE
 # Checks for library functions.
 
 AC_CHECK_FUNCS(
-  [strchr strtod strtol strtoul strerror mkdir mkstemp open read write close popen pclose pipe fork execvp getpgrp setpgid tcgetpgrp tcsetpgrp getpid waitpid alarm sigaction sigprocmask sigemptyset sigaddset times sysconf],
+  [strchr strtod strtol strtoul strerror mkdir open read write close popen pclose pipe fork execvp getpgrp setpgid tcgetpgrp tcsetpgrp getpid waitpid alarm sigaction sigprocmask sigemptyset sigaddset times sysconf],
   [],
   [AC_MSG_ERROR([missing one of the library functions required for compilation])])
 AC_CHECK_FUNCS([strsignal isatty getopt_long])