--- a/configure.ac 2016-04-04 05:59:39.000000000 +0000 +++ a/configure.ac 2020-05-17 00:39:27.151946406 +0000 @@ -176,7 +176,7 @@ AC_ARG_VAR([CC_FOR_BUILD], [C compiler for programs to be run on the build system]) AC_ARG_VAR([CFLAGS_FOR_BUILD], [C compiler flags for CC_FOR_BUILD]) AC_MSG_CHECKING([for the host compiler]) -if test "x$build" == "x$host" ; then +if test "x$build" = "x$host" ; then # Not cross-compiling. CC_FOR_BUILD=$CC CFLAGS_FOR_BUILD=$CFLAGS