From 3b42a888685aee1776a12cff84a5fe0063378483 Mon Sep 17 00:00:00 2001
From: Chen Qi <Qi.Chen@windriver.com>
Date: Mon, 25 Feb 2019 13:55:12 +0800
Subject: [PATCH] missing_type.h: add __compare_fn_t and comparison_fn_t

Make it work with musl where comparison_fn_t and __compare_fn_t
is not provided.

Upstream-Status: Inappropriate [musl specific]

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
[Rebased for v244]
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
[Rebased for v242]
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>

---
 src/basic/missing_type.h            | 9 +++++++++
 src/basic/sort-util.h               | 1 +
 src/core/kmod-setup.c               | 1 +
 src/libsystemd/sd-journal/catalog.c | 1 +
 4 files changed, 12 insertions(+)

--- a/src/basic/missing_type.h
+++ b/src/basic/missing_type.h
@@ -10,3 +10,12 @@
 #if !HAVE_CHAR16_T
 #define char16_t uint16_t
 #endif
+
+#ifndef __GLIBC__
+typedef int (*comparison_fn_t)(const void *, const void *);
+#endif
+
+#ifndef __COMPAR_FN_T
+#define __COMPAR_FN_T
+typedef int (*__compar_fn_t)(const void *, const void *);
+#endif
--- a/src/basic/sort-util.h
+++ b/src/basic/sort-util.h
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 
 #include "macro.h"
+#include "missing_type.h"
 
 /* This is the same as glibc's internal __compar_d_fn_t type. glibc exports a public comparison_fn_t, for the
  * external type __compar_fn_t, but doesn't do anything similar for __compar_d_fn_t. Let's hence do that
--- a/src/core/kmod-setup.c
+++ b/src/core/kmod-setup.c
@@ -10,6 +10,7 @@
 #include "macro.h"
 #include "recurse-dir.h"
 #include "string-util.h"
+#include "missing_type.h"
 
 #if HAVE_KMOD
 #include "module-util.h"
--- a/src/libsystemd/sd-journal/catalog.c
+++ b/src/libsystemd/sd-journal/catalog.c
@@ -28,6 +28,7 @@
 #include "string-util.h"
 #include "strv.h"
 #include "tmpfile-util.h"
+#include "missing_type.h"
 
 const char * const catalog_file_dirs[] = {
         "/usr/local/lib/systemd/catalog/",
