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-rw-r--r--lib/replace/libreplace.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/replace/libreplace.m4 b/lib/replace/libreplace.m4
index 6f1543863a..6c72cf8a2c 100644
--- a/lib/replace/libreplace.m4
+++ b/lib/replace/libreplace.m4
@@ -107,7 +107,7 @@ AC_CHECK_HEADERS(stropts.h)
AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror)
AC_CHECK_FUNCS(vsyslog setlinebuf mktime ftruncate chsize rename)
AC_CHECK_FUNCS(waitpid strlcpy strlcat initgroups memmove strdup)
-AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp)
+AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp dup2)
AC_CHECK_FUNCS(isatty)
AC_HAVE_DECL(setresuid, [#include <unistd.h>])
AC_HAVE_DECL(setresgid, [#include <unistd.h>])