diff --git a/configure.ac b/configure.ac
index 57ae1f51a5..5b64175c81 100644
--- a/configure.ac
+++ b/configure.ac
@@ -265,6 +265,7 @@ case "$host_vendor" in
    ;;
 esac
 
+AC_DEFINE([_POSIX_C_SOURCE], [1], [Define the POSIX version])
 AC_SUBST([MODULE_ARCH])
 AC_DEFINE_UNQUOTED([MODULE_ARCH], ["${MODULE_ARCH}"], ["Module architecture"])
 AC_DEFINE_UNQUOTED([SHARED_LIB_SUFFIX], ["${MODULE_EXT}"], [Suffix for shared objects])
diff --git a/meson.build b/meson.build
index 2595461c62..b5856468cf 100644
--- a/meson.build
+++ b/meson.build
@@ -97,6 +97,7 @@ add_global_arguments(dev_cflags, language: 'cpp')
 foreach lang : ['c', 'objc', 'cpp']
   add_global_arguments('-DHAVE_CONFIG_H=1', language: lang)
   add_global_arguments('-D_GNU_SOURCE=1', language: lang)
+  add_global_arguments('-D_POSIX_C_SOURCE=1', language: lang)
   add_global_arguments('-DEFL_BETA_API_SUPPORT=1', language: lang)
   add_global_arguments('-DNEED_RUN_IN_TREE=1', language: lang)
   add_global_arguments('-DEFL_BUILD=1', language: lang)
diff --git a/src/lib/evil/evil_macro_wrapper.h b/src/lib/evil/evil_macro_wrapper.h
index ae748677b0..9eb1ac7a6e 100644
--- a/src/lib/evil/evil_macro_wrapper.h
+++ b/src/lib/evil/evil_macro_wrapper.h
@@ -45,20 +45,6 @@
 #endif
 #define mkdir(dirname, mode) evil_mkdir(dirname, mode)
 
-/*
- * evil_time.h
- */
-
-/**
- * @def localtime_r(t, r)
- *
- * Wrapper around evil_localtime_r().
- */
-#ifdef localtime_r
-# undef localtime_r
-#endif
-#define localtime_r(t, r) evil_localtime_r(t, r)
-
 /*
  * evil_unistd.h
  */
diff --git a/src/lib/evil/evil_time.c b/src/lib/evil/evil_time.c
index 76c5a58657..90b63692fc 100644
--- a/src/lib/evil/evil_time.c
+++ b/src/lib/evil/evil_time.c
@@ -12,16 +12,6 @@
 #include "evil_macro_wrapper.h"
 #include "evil_private.h"
 
-struct tm *
-evil_localtime_r(const time_t *timep, struct tm *result)
-{
-   __time64_t t = *timep;
-
-   _localtime64_s(result, &t);
-
-   return result;
-}
-
 /*
  * strptime
  * based on http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/time/strptime.c?rev=HEAD
diff --git a/src/lib/evil/evil_time.h b/src/lib/evil/evil_time.h
index 34607de5d1..00f538cae7 100644
--- a/src/lib/evil/evil_time.h
+++ b/src/lib/evil/evil_time.h
@@ -2,6 +2,9 @@
 #define __EVIL_TIME_H__
 
 
+#include <time.h>
+
+
 /**
  * @file evil_time.h
  * @brief The file that provides functions ported from Unix in time.h.
@@ -14,26 +17,6 @@
  */
 
 
-/**
- * @brief Convert the calendar time to broken-time representation in a
- * user supplied data.
- *
- * @param timep The calender time.
- * @param result The broken-down time representation.
- * @return The broken-down time representation.
- *
- * This function converts the calendar time @p timep to a broken-time
- * representation. The result is stored in the buffer  @p result
- * supplied by the user. If @p timep or @p result are @c NULL, or if
- * an error occurred, this function returns @c NULL and the values in
- * @p result might be undefined. Otherwise it returns @p result.
- *
- * Conformity: Non applicable.
- *
- * Supported OS: Windows XP.
- */
-EAPI struct tm *evil_localtime_r(const time_t *timep, struct tm *result);
-
 /**
  * @brief Convert a string representation of time to a time tm structure .
  *