[PATCH 17/17] meson: Detect newer fuse

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Now that we have support for fuse-3 we can detect it during the
configure phase. Even better, we can detect fuse-3 first and
fallback to old fuse only if the newer version doesn't exist.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
 meson.build        | 12 +++++++++---
 src/lxc/lxc_fuse.c |  6 +++++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/meson.build b/meson.build
index 519a928c9a..f6259e59a4 100644
--- a/meson.build
+++ b/meson.build
@@ -947,10 +947,16 @@ if dlopen_dep.found()
   conf.set('WITH_DLFCN_H', 1)
 endif
 
-fuse_version = '2.8.6'
-fuse_dep = dependency('fuse', version: '>=' + fuse_version, required: get_option('fuse'))
+fuse_version = '3.1.0'
+fuse_dep = dependency('fuse3', version: '>=' + fuse_version, required: false)
 if fuse_dep.found()
-  conf.set('WITH_FUSE', 1)
+  conf.set('WITH_FUSE', 3)
+else
+  fuse_version = '2.8.6'
+  fuse_dep = dependency('fuse', version: '>=' + fuse_version, required: get_option('fuse'))
+  if fuse_dep.found()
+    conf.set('WITH_FUSE', 1)
+  endif
 endif
 
 glib_version = '2.56.0'
diff --git a/src/lxc/lxc_fuse.c b/src/lxc/lxc_fuse.c
index 802b2f5a1b..5e48206c39 100644
--- a/src/lxc/lxc_fuse.c
+++ b/src/lxc/lxc_fuse.c
@@ -26,7 +26,11 @@
 #include <unistd.h>
 
 #if WITH_FUSE
-# define FUSE_USE_VERSION 26
+# if WITH_FUSE == 3
+#  define FUSE_USE_VERSION 31
+# else
+#  define FUSE_USE_VERSION 26
+# endif
 # include <fuse.h>
 # if FUSE_USE_VERSION >= 31
 #  include <fuse_lowlevel.h>
-- 
2.34.1




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