[dpdk-dev] [PATCH] ring: build on Windows

[Fady Bader <fady@mellanox.com>]

Exported per_lcore__rte_errno function to compile ring for windows.

compilation error logs:
librte_ring_rte_ring.c.obj : error LNK2019: unresolved
external symbol per_lcore__rte_errno referenced in
function rte_ring_lookup

The cause was that per_lcore__rte_errno function wasn't included
in the export list.
To solve this per_lcore__rte_errno was added to the Windows export
list.

Signed-off-by: Fady Bader <fady@mellanox.com>
Depends-on: series-9374 ("Windows basic memory management")
---
 lib/librte_eal/rte_eal_exports.def | 1 +
 lib/librte_eal/rte_eal_version.map | 5 ++++-
 lib/meson.build                    | 2 +-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/librte_eal/rte_eal_exports.def b/lib/librte_eal/rte_eal_exports.def
index 854b83bcd..cbb6b8cfe 100644
--- a/lib/librte_eal/rte_eal_exports.def
+++ b/lib/librte_eal/rte_eal_exports.def
@@ -1,5 +1,6 @@
 EXPORTS
 	__rte_panic
+	per_lcore__rte_errno
 	rte_calloc
 	rte_calloc_socket
 	rte_eal_get_configuration
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index bdd014638..1a1dedcd9 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -390,4 +390,7 @@ EXPERIMENTAL {
 	rte_trace_point_lookup;
 	rte_trace_regexp;
 	rte_trace_save;
-};
+
+	# added in 20.08
+	__emutls_v.per_lcore__rte_errno;
+};
\ No newline at end of file
diff --git a/lib/meson.build b/lib/meson.build
index d190d84ef..5b644f5cd 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -36,7 +36,7 @@ libraries = [
 	'flow_classify', 'bpf', 'graph', 'node']
 
 if is_windows
-	libraries = ['kvargs','eal'] # only supported libraries for windows
+	libraries = ['kvargs','eal','ring'] # only supported libraries for windows
 endif
 
 default_cflags = machine_args
-- 
2.16.1.windows.4