Upstream-URL: https://gitlab.com/lvmteam/lvm2/-/merge_requests/29

From b0b259e3571b5be49d912e56518c9af734f317d4 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Mon, 2 Jun 2025 04:08:08 +0000
Subject: [PATCH] configure: Use portable string comparison

= and == are equivalent in Bash for strings, but = is the only portable
operator for compatibility with other shells.  Before this change,
running ./configure with Dash as /bin/sh resulted in:

./configure: 14558: test: yes: unexpected operator

and the test did not work (i.e. --enable-cmdlib --disable-shared allowed
a failed build to continue).  Now, the test works in Bash and Dash.
---
 configure    | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 342bd0047..75564a228 100755
--- a/configure
+++ b/configure
@@ -14564,7 +14564,7 @@ printf %s "checking whether to compile liblvm2cmd.so... " >&6; }
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CMDLIB" >&5
 printf "%s\n" "$CMDLIB" >&6; }
 
-if test "$CMDLIB" == "yes" && test "$SHARED_LINK" = "no"
+if test "$CMDLIB" = "yes" && test "$SHARED_LINK" = "no"
 then :
   as_fn_error $? "--enable-cmdlib requires dynamic linking." "$LINENO" 5
 fi
diff --git a/configure.ac b/configure.ac
index 6fcf6f2b5..470057be4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1395,7 +1395,7 @@ AS_IF([test "$CMDLIB" != "yes"], [CMDLIB="no" LVM2CMD_LIB=], [LVM2CMD_LIB="-llvm
 AC_MSG_CHECKING([whether to compile liblvm2cmd.so])
 AC_MSG_RESULT([$CMDLIB])
 
-AS_IF([test "$CMDLIB" == "yes" && test "$SHARED_LINK" = "no"],
+AS_IF([test "$CMDLIB" = "yes" && test "$SHARED_LINK" = "no"],
       [AC_MSG_ERROR([--enable-cmdlib requires dynamic linking.])])
 
 
-- 
2.40.0