diff --git a/package/base/m4/hotfixes.patch b/package/base/m4/hotfixes.patch
deleted file mode 100644
index a01f81246..000000000
--- a/package/base/m4/hotfixes.patch
+++ /dev/null
@@ -1,22 +0,0 @@
---- ./lib/sys_time_.h	2007-05-16 23:33:02.000000000 +0200
-+++ ./lib/sys_time_.h	2007-05-16 23:35:10.000000000 +0200
-@@ -39,7 +39,7 @@
- #if 1
- # undef gettimeofday
- # define gettimeofday rpl_gettimeofday
--int gettimeofday (struct timeval *restrict, void *restrict);
-+int gettimeofday (struct timeval *tv, void *tz);
- #endif
- 
- #endif /* _gl_SYS_TIME_H */
---- ./lib/gettimeofday.c	2007-05-16 23:34:08.000000000 +0200
-+++ ./lib/gettimeofday.c	2007-05-16 23:35:31.000000000 +0200
-@@ -98,7 +98,7 @@
-    causes problems.  */
- 
- int
--rpl_gettimeofday (struct timeval *restrict tv, void *restrict tz)
-+rpl_gettimeofday (struct timeval *tv, void *tz)
- {
- #undef gettimeofday
- #if HAVE_GETTIMEOFDAY
diff --git a/package/base/m4/m4.conf b/package/base/m4/m4.conf
new file mode 100644
index 000000000..47128a1b1
--- /dev/null
+++ b/package/base/m4/m4.conf
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+hook_add preconf 5 "echo ac_cv_c_restrict=__restrict > config.cache"
+var_append extraconfopt " " "--cache-file=config.cache"