bcachefs-tools: fix on 32bit.

srcpkgs/bcachefs-tools/patches/32bit.patch

@@ -0,0 +1,15 @@
+--- a/include/linux/atomic.h
++++ b/include/linux/atomic.h
+@@ -300,6 +300,12 @@
+ DEF_ATOMIC_OPS(atomic64,	s64)
+ #else
+ s64 atomic64_read(const atomic64_t *v);
++static inline s64 atomic64_read_acquire(const atomic64_t *v)		\
++{									\
++	s64 ret = atomic64_read(&v->counter);				\
++	smp_mb__after_atomic();						\
++	return ret;							\
++}									\
+ void atomic64_set(atomic64_t *v, s64);
+ 
+ s64 atomic64_add_return(s64, atomic64_t *);

srcpkgs/bcachefs-tools/template

@@ -6,7 +6,7 @@ revision=1
 build_style=gnu-makefile
 make_install_args="ROOT_SBINDIR=/usr/bin"
 make_use_env=yes
-hostmakedepends="pkg-config cargo clang"
+hostmakedepends="pkg-config cargo clang liburcu-devel"
 makedepends="rust attr-devel keyutils-devel libaio-devel libblkid-devel
  liblz4-devel libscrypt-devel libsodium-devel libudev-devel liburcu-devel
  libuuid-devel libzstd-devel zlib-devel"