[PATCH] configure: check for links to/from libdir in ldconfig output

David Bremner david at tethera.net
Tue May 29 20:04:14 PDT 2018

If e.g. /lib is a link to /usr/lib, then the latter may not show up in
the way we expect in the output of ldconfig. 'test foo -ef bar' checks
if foo and bar have the same device and inode numbers. Since (at least
in bash, ksh, and zsh) the shell dereferences symlinks before applying
the test, this includes both the case where file1 is equal to file2
and the case where one is a symlink to the other.
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 3cefdcc6..ab7e1610 100755
--- a/configure
+++ b/configure
@@ -715,7 +715,7 @@ elif [ $uname = "Linux" ] || [ $uname = "GNU" ] ; then
     for path in $ldconfig_paths; do
-	if [ "$path" = "$libdir_expanded" ]; then
+	if [ "$path" -ef "$libdir_expanded" ]; then

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