On systems where `/bin/sh` is a POSIX-compliant shell (such as Dash without the hobbling of `$LINENO` that some distros inflict on it), Autoconf will use `/bin/sh` as its `configure` script interpreter. Bashisms in `configure.ac` thus lead to shell errors at runtime. The most common such Bashism is the use of the `==` operator with the `test` built-in. SQLite's `configure.ac` has one such occurrence of the `==` operator, which causes Dash to emit errors of the form: ./configure: 12664: test: unexpected operator Please apply this patch to eliminate the Bashism: ``` diff -Naur a/configure.ac b/configure.ac --- a/configure.ac 2020-06-18 14:35:12.000000000 +0000 +++ b/configure.ac 2020-07-06 21:22:52.742873150 +0000 @@ -569,7 +569,7 @@ # See whether we should use the amalgamation to build AC_ARG_ENABLE(amalgamation, AC_HELP_STRING([--disable-amalgamation], [Disable the amalgamation and instead build all files separately])) -if test "${enable_amalgamation}" == "no" ; then +if test "${enable_amalgamation}" = "no" ; then USE_AMALGAMATION=0 fi AC_SUBST(USE_AMALGAMATION) ```