From 6761a838a3750998ffc0e315d429168858a80a0a Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Fri, 19 May 2017 12:46:46 +0800
Subject: [PATCH] cmake: check the existence of gperf before using it

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 src/rgw/CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/rgw/CMakeLists.txt b/src/rgw/CMakeLists.txt
index 53583652acdfe..591d136ccae8c 100644
--- a/src/rgw/CMakeLists.txt
+++ b/src/rgw/CMakeLists.txt
@@ -25,10 +25,14 @@ add_custom_target(civetweb_h
   "${CMAKE_BINARY_DIR}/src/include/civetweb"
   COMMENT "keep civetweb.h up-to-date")
 
+find_program(GPERF gperf)
+if(NOT GPERF)
+  message(FATAL_ERROR "Can't find gperf")
+endif()
 function(gperf_generate input output)
   add_custom_command(
     OUTPUT ${output}
-    COMMAND gperf ${input} > ${output}
+    COMMAND ${GPERF} ${input} > ${output}
     DEPENDS ${input}
     COMMENT "Generate ${output}"
     )
-- 
2.39.5