From 634ac768bad781b44662376bf4c9a03300a118ba Mon Sep 17 00:00:00 2001
From: Krzysztof Karas <krzysztof.karas@intel.com>
Date: Mon, 23 Jan 2023 14:48:08 +0100
Subject: [PATCH] config: detect uuid_generate_sha1() function definition

Some systems (like FreeBSD and Centos 7) do not have this
method in their system libraries.
To let bdev UUIDs be generated with SHA1, detect if this
symbol is present. Otherwise, define a new symbol that
indicates a need to use internal implementation of
uuid_generate_sha1() method.

Change-Id: I3a3617d1b413af7f5af487b2eb6f3fe33f58a95e
Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16413
Reviewed-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
---
 CONFIG    | 3 +++
 configure | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/CONFIG b/CONFIG
index 0f235136a..8abbf58c5 100644
--- a/CONFIG
+++ b/CONFIG
@@ -204,6 +204,9 @@ CONFIG_IDXD_KERNEL=n
 # arc4random is available in stdlib.h
 CONFIG_HAVE_ARC4RANDOM=n
 
+# uuid_generate_sha1 is available in uuid/uuid.h
+CONFIG_HAVE_UUID_GENERATE_SHA1=n
+
 # Is DPDK using libbsd?
 CONFIG_HAVE_LIBBSD=n
 
diff --git a/configure b/configure
index 5935ff50e..f5557ce2c 100755
--- a/configure
+++ b/configure
@@ -1109,6 +1109,11 @@ if echo -e '#include <stdlib.h>\nint main(void) { arc4random(); return 0; }\n' \
 	CONFIG[HAVE_ARC4RANDOM]="y"
 fi
 
+if echo -e '#include <uuid/uuid.h>\nint main(void) { uuid_generate_sha1(NULL, NULL, NULL, 0); return 0; }\n' \
+	| "${BUILD_CMD[@]}" - -luuid 2> /dev/null; then
+	CONFIG[HAVE_UUID_GENERATE_SHA1]="y"
+fi
+
 if [[ "${CONFIG[OCF]}" = "y" ]]; then
 	echo "WARNING: OCF - bdev_ocf is deprecated."
 	# If OCF_PATH is a file, assume it is a library and use it to compile with