[Qemu-devel] [PATCH] qemu-iotests: Fix error message if which(1) not installed

[Fam Zheng]

When which(1) is not installed, we complain "perl not found" because
it's the first set_prog_path check. The error message is misleading.

Fix it by adding a check for which(1) in the beginning.

Signed-off-by: Fam Zheng <address@hidden>
---
 tests/qemu-iotests/common.config | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/qemu-iotests/common.config b/tests/qemu-iotests/common.config
index bd6790b..9674f3a 100644
--- a/tests/qemu-iotests/common.config
+++ b/tests/qemu-iotests/common.config
@@ -73,6 +73,8 @@ _fatal()
     exit 1
 }
 
+which -v &>/dev/null || _fatal "which not found"
+
 export PERL_PROG="`set_prog_path perl`"
 [ "$PERL_PROG" = "" ] && _fatal "perl not found"
 
-- 
1.9.3