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libmbim: fix build with musl libc

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Patch applied upstream:
  https://cgit.freedesktop.org/libmbim/libmbim/commit/?id=417b0b80023dc30d61c111ec0a54da2884d3a541

Fixes:
http://autobuild.buildroot.net/results/dc1/dc11a3dfd18bb7f5078de00412de82de3cce3c48

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
[Arnout: rework commit message]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Aleksander Morgado 2017-09-11 10:55:33 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 9b7111a1e2
commit 6e271944f9
1 changed files with 37 additions and 0 deletions
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37
package/libmbim/0001-mbim-device-prefer-realpath-to-canonicalize_file_nam.patch Normal file
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@ -0,0 +1,37 @@
From 6b043b9b676e88a80e3d4013863c5e970fdde1df Mon Sep 17 00:00:00 2001
From: Aleksander Morgado <aleksander@aleksander.es>
Date: Mon, 11 Sep 2017 09:31:03 +0200
Subject: [PATCH] mbim-device: prefer realpath() to canonicalize_file_name()
Usually the canonicalize_file_name() GNU extension is preferred to the
POSIX realpath(), as it covers some of the limitations the latter has.
But this extension isn't available in lots of platforms or in other
c library implementations (e.g. musl), so just default to the POSIX
method to improve portability.
Note that the check for canonicalize_file_name() availability during
configure isn't as trivial as adding a new AC_CHECK_FUNCS(), and
importing a gnulib module seems overkill just for this one liner.
(cherry picked from commit 417b0b80023dc30d61c111ec0a54da2884d3a541)
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
---
src/libmbim-glib/mbim-device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libmbim-glib/mbim-device.c b/src/libmbim-glib/mbim-device.c
index e1f32a6..20e64af 100644
--- a/src/libmbim-glib/mbim-device.c
+++ b/src/libmbim-glib/mbim-device.c
@@ -867,7 +867,7 @@ get_descriptors_filepath (MbimDevice *self)
* /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:2.0
*/
tmp = g_strdup_printf ("/sys/class/%s/%s/device", subsystems[i], device_basename);
- path = canonicalize_file_name (tmp);
+ path = realpath (tmp, NULL);
g_free (tmp);
if (g_file_test (path, G_FILE_TEST_EXISTS)) {
--
2.13.1