[PULL 2/2] configure: Use -ef to compare paths

[Paolo Bonzini]

From: Akihiko Odaki <akihiko.odaki@daynix.com>

configure checks if it is executed in the source directory by comparing
the literal paths, but there may be multiple representations of a
directory due to symbolic links. Use the -ef operator to tell if they
point to the same directory.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Link: 20241111-p-v1-1-001006c68b7e@daynix.com">https://lore.kernel.org/r/20241111-p-v1-1-001006c68b7e@daynix.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 096b1fddb70..18336376bff 100755
--- a/configure
+++ b/configure
@@ -13,7 +13,7 @@ export CCACHE_RECACHE=yes
 # make source path absolute
 source_path=$(cd "$(dirname -- "$0")"; pwd)
 
-if test "$PWD" = "$source_path"
+if test "$PWD" -ef "$source_path"
 then
     echo "Using './build' as the directory for build output"
 
-- 
2.47.0