From 85863c9e051fe59add4e47dbfcb37072234f0110 Mon Sep 17 00:00:00 2001
From: Matt Weber <matthew.weber@rockwellcollins.com>
Date: Mon, 1 May 2017 19:55:07 -0500
Subject: [PATCH] musl compat canonicalize_file_name()

Adds an inline equivalent of canonicalize_file_name
using realpath().

Bug report (origin of this patch):
https://bugs.freedesktop.org/show_bug.cgi?id=99944

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
---
 configure.ac                |  2 ++
 src/libqmi-glib/qmi-utils.h | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/configure.ac b/configure.ac
index 162d5ae..9cb82fd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,6 +80,8 @@ AC_SUBST(GLIB_LIBS)
 GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`
 AC_SUBST(GLIB_MKENUMS)
 
+AC_CHECK_FUNCS([canonicalize_file_name])
+
 dnl qmi-firmware-update is optional, enabled by default
 AC_ARG_ENABLE([firmware-update],
               AS_HELP_STRING([--enable-firmware-update],
diff --git a/src/libqmi-glib/qmi-utils.h b/src/libqmi-glib/qmi-utils.h
index 4fd5199..4869da5 100644
--- a/src/libqmi-glib/qmi-utils.h
+++ b/src/libqmi-glib/qmi-utils.h
@@ -29,6 +29,24 @@
 #error "Only <libqmi-glib.h> can be included directly."
 #endif
 
+#ifndef HAVE_CANONICALIZE_FILE_NAME
+#include <limits.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+static char * canonicalize_file_name(const char *path)
+{
+       char buf[PATH_MAX] = { };
+
+       snprintf(buf, sizeof(buf) - 1, "%s", path);
+
+       if (!realpath(path, buf))
+               return NULL;
+
+       return strdup(buf);
+}
+#endif
+
 #include <glib.h>
 
 G_BEGIN_DECLS
-- 
2.7.4