configure.ac: fix bashism in string equality test

orlitzky · james-d-mitchell · commit f42f69375d7d · 2024-02-06T21:36:52.000Z
Using "==" for string equality only works in the Bash shell, while
./configure is meant to be run in any POSIX /bin/sh. We change one
instance to "=" to fix the following error in (for example) Dash:

  ./configure: 5587: test: x: unexpected operator
diff --git a/configure.ac b/configure.ac
@@ -108,7 +108,7 @@ AC_ARG_WITH([intrinsics],
                             [do not use compiler intrinsics even if available])]
            )
 
-AS_IF([test "x$with_intrinsics" == "xno" ],
+AS_IF([test "x$with_intrinsics" = "xno" ],
       [AC_MSG_NOTICE([compiler intrinsics will not be used even if available])])
 
 dnl compiler builtins

Original file line number	Diff line number	Diff line change
`@@ -108,7 +108,7 @@ AC_ARG_WITH([intrinsics],`
`108`	`108`	`[do not use compiler intrinsics even if available])]`
`109`	`109`	`)`
`110`	`110`
`111`		`-AS_IF([test "x$with_intrinsics" == "xno" ],`
	`111`	`+AS_IF([test "x$with_intrinsics" = "xno" ],`
`112`	`112`	`[AC_MSG_NOTICE([compiler intrinsics will not be used even if available])])`
`113`	`113`
`114`	`114`	`dnl compiler builtins`