From c5333741303774b911a0dc81906943df0bbc0df3 Mon Sep 17 00:00:00 2001
From: "James O. D. Hunt" <james.o.hunt@intel.com>
Date: Wed, 24 Jan 2018 11:09:08 +0000
Subject: [PATCH] build: Check ".git" is a directory before hook install

Check that `.git` is actually a directory before attempting to install
git hooks.

Fixes #951.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
---
 Makefile | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 597eec84..0db27839 100644
--- a/Makefile
+++ b/Makefile
@@ -296,13 +296,13 @@ QUIET_GENERATE = $(Q:@=@echo    '     GENERATE '$@;)
 QUIET_INST     = $(Q:@=@echo    '     INSTALL '$@;)
 QUIET_TEST     = $(Q:@=@echo    '     TEST    '$@;)
 
-# return non-empty string if file exists
-define FILE_EXISTS
-$(realpath $1)
+# Return non-empty string if specified directory exists
+define DIR_EXISTS
+$(shell test -d $(1) && echo "$(1)")
 endef
 
-# only install git hooks if working in a git clone
-ifneq (,$(call FILE_EXISTS,.git))
+# Only install git hooks if working in a git clone
+ifneq (,$(call DIR_EXISTS,.git))
 	HANDLE_GIT_HOOKS = install-git-hooks
 endif