diff -Naur a/configure.ac b/configure.ac
--- a/configure.ac	2018-10-13 16:42:36.000000000 +0000
+++ b/configure.ac	2020-05-19 05:01:06.008506972 +0000
@@ -225,7 +225,7 @@
 # Compiling without fPIE by default (see PR 9922)
 AC_ARG_ENABLE([pie],
   [AS_HELP_STRING([--enable-pie], [enable position-independent-executable])])
-AS_IF([test "x$enable_pie" == xyes],[
+AS_IF([test "x$enable_pie" = xyes],[
    PIECFLAGS='-fPIE'
    PIECXXFLAGS='-fPIE'
    PIELDFLAGS='-pie -Wl,-z,relro -Wl,-z,now'
@@ -271,7 +271,7 @@
   AS_HELP_STRING([--disable-translator], [build only runtime utilities]),
   [],
   [enable_translator="yes"])
-AM_CONDITIONAL([BUILD_TRANSLATOR], [test "$enable_translator" == "yes"])
+AM_CONDITIONAL([BUILD_TRANSLATOR], [test "$enable_translator" = "yes"])
 
 dnl Handle the option to build the crash extension
 AC_ARG_ENABLE([crash],
@@ -312,25 +312,25 @@
 AC_CHECK_PROG(have_dvips, dvips, yes, no)
 AC_CHECK_PROG(have_ps2pdf, ps2pdf, yes, no)
 if test "x${have_latex}${have_dvips}${have_ps2pdf}" != "xyesyesyes"; then
-   if test "$enable_docs" == "yes"; then
+   if test "$enable_docs" = "yes"; then
       AC_MSG_ERROR([cannot find all tools for building documentation])
    fi
-  if test "$enable_docs" == "check"; then
+  if test "$enable_docs" = "check"; then
     AC_MSG_WARN([will not build documentation, cannot find all tools])
   fi
 fi
-if test "$enable_docs" == "prebuilt"; then
+if test "$enable_docs" = "prebuilt"; then
   AC_MSG_NOTICE([will only install prebuilt documentation])
 fi
-if test "x${have_latex}${have_dvips}${have_ps2pdf}" == "xyesyesyes" -a "$enable_docs" != "no" -a "$enable_docs" != "prebuilt"; then
+if test "x${have_latex}${have_dvips}${have_ps2pdf}" = "xyesyesyes" -a "$enable_docs" != "no" -a "$enable_docs" != "prebuilt"; then
    building_docs="yes"
    installing_prebuilt_docs="yes"
 fi
-if test "$enable_docs" == "no"; then
+if test "$enable_docs" = "no"; then
    installing_prebuilt_docs="no"
 fi
-AM_CONDITIONAL([BUILD_DOCS], [test "$building_docs" == "yes"])
-AM_CONDITIONAL([INSTALL_PREBUILT_DOCS], [test "$installing_prebuilt_docs" == "yes"])
+AM_CONDITIONAL([BUILD_DOCS], [test "$building_docs" = "yes"])
+AM_CONDITIONAL([INSTALL_PREBUILT_DOCS], [test "$installing_prebuilt_docs" = "yes"])
 
 
 dnl Handle the option to build the reference documentation
@@ -340,17 +340,17 @@
     [enable building reference documentation (default on if other documentation built).]),
   [enable_refdocs=$enableval],
   [enable_refdocs="check"])
-if test "$building_docs" == "no" -a "$enable_refdocs" == "yes" ; then
+if test "$building_docs" = "no" -a "$enable_refdocs" = "yes" ; then
    AC_MSG_ERROR([must use --enable-docs with --enable-refdocs])
 fi
-if test "$enable_refdocs" != "no" -a "${building_docs}" == "yes"; then
+if test "$enable_refdocs" != "no" -a "${building_docs}" = "yes"; then
    building_refdocs="yes"
 fi
-AM_CONDITIONAL([BUILD_REFDOCS], [test "$building_refdocs" == "yes"])
+AM_CONDITIONAL([BUILD_REFDOCS], [test "$building_refdocs" = "yes"])
 
 AC_CHECK_PROG(have_xmlto, xmlto, yes, no)
 AC_CHECK_PROG(have_fop, fop, yes, no)
-if test "x${have_fop}" == "xyes"; then
+if test "x${have_fop}" = "xyes"; then
    # Due to rhbz505364 / 830266, we must actually test-run fop, not just
    # hope that it works.
    AC_MSG_CHECKING([to see if xmlto --with-fop actually works])
@@ -362,8 +362,8 @@
    fi
    rm -f dummy-tapsets.pdf
 fi
-AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" == "yes"])
-AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" == "yes"])
+AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = "yes"])
+AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = "yes"])
 
 dnl Handle the option to build the html documentation
 building_htmldocs="no"
@@ -372,11 +372,11 @@
     [enable building html documentation (default off).]),
     [building_htmldocs=$enableval],
     [building_htmldocs="no"])
-if test "$have_xmlto" == "no" -a "$building_htmldocs" == "yes"; then
+if test "$have_xmlto" = "no" -a "$building_htmldocs" = "yes"; then
    AC_MSG_ERROR([xmlto required for building html documentation])
 fi
 
-AM_CONDITIONAL([BUILD_HTMLDOCS], [test "$building_htmldocs" == "yes"])
+AM_CONDITIONAL([BUILD_HTMLDOCS], [test "$building_htmldocs" = "yes"])
 
 dnl There is a strange bug in older versions of xmlto when generating pdf.
 dnl https://bugzilla.redhat.com/show_bug.cgi?id=526273
@@ -396,10 +396,10 @@
    </book>
 EOF
 
-if test "x${have_xmlto}" == "xyes"; then
+if test "x${have_xmlto}" = "xyes"; then
 AC_MSG_CHECKING([for xmlto --stringparam support])
    xmlto --stringparam man.authors.section.enabled=0 html-nochunks conftest.xml >/dev/null 2>&1
-   if test $? == 0; then
+   if test $? = 0; then
       have_xmlto_stringparam="yes"
       AC_MSG_RESULT([yes])
    else
@@ -407,7 +407,7 @@
    fi
    rm -f conftest.html
 fi
-AM_CONDITIONAL([XMLTO_STRINGPARAM], [test "$have_xmlto_stringparam" == "yes"])
+AM_CONDITIONAL([XMLTO_STRINGPARAM], [test "$have_xmlto_stringparam" = "yes"])
 
 rm -f conftest.xml
 
@@ -473,7 +473,7 @@
     AC_MSG_WARN([will not build systemtap compile server, cannot find nss headers])
   fi		       
 fi
-AM_CONDITIONAL([BUILD_SERVER], [test "${have_nss}" == "yes" -a "$enable_server" != "no"])
+AM_CONDITIONAL([BUILD_SERVER], [test "${have_nss}" = "yes" -a "$enable_server" != "no"])
 
 if test "${have_nss}" != "yes"; then
   AC_MSG_WARN([compile-server client functionality will be disabled, cannot find nss development files])
@@ -514,10 +514,10 @@
                     AC_DEFINE([HAVE_LIBRPMIO],[1],[have librpmio])
                     stap_LIBS="$stap_LIBS -lc -lrpmio"
                     have_librpmio="yes"], [have_librpmio="no"])
-  if test "x$have_librpm" != "xyes" -a "$with_rpm" == "yes"; then
+  if test "x$have_librpm" != "xyes" -a "$with_rpm" = "yes"; then
      AC_MSG_ERROR([cannot find librpm])
   fi
-  if test "x$have_librpmio" != "xyes" -a "$with_rpm" == "yes"; then
+  if test "x$have_librpmio" != "xyes" -a "$with_rpm" = "yes"; then
      AC_MSG_WARN([cannot find librpmio])
   fi
 fi
@@ -554,7 +554,7 @@
 	    [Define if you have the readline library (-lreadline).])
 fi
 AC_SUBST([READLINE_LIBS])
-AM_CONDITIONAL([HAVE_LIBREADLINE], [test "$have_libreadline" == "yes"])
+AM_CONDITIONAL([HAVE_LIBREADLINE], [test "$have_libreadline" = "yes"])
 
 dnl End of readline checks: restore LIBS
 LIBS=$LIBS_no_readline
@@ -710,7 +710,7 @@
     AC_MSG_WARN([will not build systemtap virt support, cannot find xml2 headers])
   fi		       
 fi
-AM_CONDITIONAL([BUILD_VIRT], [test "${have_libvirt}" == "yes" -a "${have_libxml2}" == "yes" -a "$enable_virt" != "no"])
+AM_CONDITIONAL([BUILD_VIRT], [test "${have_libvirt}" = "yes" -a "${have_libxml2}" = "yes" -a "$enable_virt" != "no"])
 
 dnl Handle the option to build python2 probe support
 AC_ARG_WITH([python2-probes],
@@ -750,7 +750,7 @@
 AS_IF([test "x$with_python3_probes" != "xno"],
   [dnl First, check to make sure we have the 'python3-config' script.
    pathless_python3=$(basename "$PYTHON3")
-   if test "x${pathless_python3}" == "x"; then
+   if test "x${pathless_python3}" = "x"; then
 	pathless_python3="python3"   
    fi
    AC_PATH_PROG([PYTHON3_CONFIG], [${pathless_python3}-config], [no])
@@ -785,8 +785,8 @@
 dnl Check for presence of json-c and ncurses for use in monitor mode
 PKG_CHECK_MODULES([jsonc], [json-c >= 0.11], [have_jsonc=yes], [have_jsonc=no])
 PKG_CHECK_MODULES([ncurses], [ncurses], [have_ncurses=yes], [have_ncurses=no])
-AM_CONDITIONAL([HAVE_MONITOR_LIBS], [test "${have_jsonc}" == "yes" -a "${have_ncurses}" == "yes"])
-if test "${have_jsonc}" == "yes" -a "${have_ncurses}" == yes; then
+AM_CONDITIONAL([HAVE_MONITOR_LIBS], [test "${have_jsonc}" = "yes" -a "${have_ncurses}" = "yes"])
+if test "${have_jsonc}" = "yes" -a "${have_ncurses}" = yes; then
   AC_DEFINE([HAVE_MONITOR_LIBS],[1],[Define to 1 if json-c and ncurses libraries are installed])
 fi
 
@@ -823,7 +823,7 @@
                [],
                [#include <linux/bpf.h>])
     ])
-AM_CONDITIONAL(HAVE_BPF_DECLS, [test "x$ac_cv_have_decl_BPF_PROG_TYPE_PERF_EVENT" == "xyes"])
+AM_CONDITIONAL(HAVE_BPF_DECLS, [test "x$ac_cv_have_decl_BPF_PROG_TYPE_PERF_EVENT" = "xyes"])
 AC_CONFIG_FILES([includes/sys/sdt-config.h po/Makefile.in])
 
 if test $build_elfutils = yes -a $enable_translator = yes; then
@@ -965,7 +965,7 @@
    dnl If we have all of the libraries, the json-c and nss libraries,
    dnl and full C++11 support, we could build the httpd web
    dnl compilation service.
-   AS_IF([test "x$have_libmicrohttpd" == "xtrue" -a "x$have_libuuid" == "xtrue" -a "x$have_libcurl" == "xtrue" -a "x$have_jsonc" == "xyes" -a "x$have_nss" == "xyes" -a "x$have_openssl" == "xyes" -a "x$have_cxx0x" == "xno"], [have_http_support=yes])])
+   AS_IF([test "x$have_libmicrohttpd" = "xtrue" -a "x$have_libuuid" = "xtrue" -a "x$have_libcurl" = "xtrue" -a "x$have_jsonc" = "xyes" -a "x$have_nss" = "xyes" -a "x$have_openssl" = "xyes" -a "x$have_cxx0x" = "xno"], [have_http_support=yes])])
 
 AS_IF([test "x$have_http_support" = "xyes"],
   [AC_DEFINE([HAVE_HTTP_SUPPORT], [1],
@@ -1010,7 +1010,7 @@
 initscript/99stap/install \
 initscript/99stap/check ])
 AC_CONFIG_SUBDIRS(testsuite)
-if test $enable_translator == "yes"; then
+if test $enable_translator = "yes"; then
 	AC_CONFIG_FILES([run-stap], [chmod +x run-stap])
 fi
 AC_CONFIG_FILES([dtrace], [chmod +x dtrace])