use '=' instead of '==' for portability

src/modules/rlm_krb5/configure.ac

@@ -44,7 +44,7 @@ if test x$with_[]modname != xno; then
 
 		dnl # AWK originally from from https://github.com/hpc/lustre
 		krb5_version=$(echo "$krb5_version_raw" | head -n 1 | \
-			awk '{split($(4),v,"."); if (v@<:@"3"@:>@ == "") v@<:@"3"@:>@ = "0"; print v@<:@"1"@:>@v@<:@"2"@:>@v@<:@"3"@:>@ }')
+			awk '{split($(4),v,"."); if (v@<:@"3"@:>@ = "") v@<:@"3"@:>@ = "0"; print v@<:@"1"@:>@v@<:@"2"@:>@v@<:@"3"@:>@ }')
 		AC_MSG_RESULT([${krb5_version_raw} ($krb5_version)])
 
 		AC_MSG_CHECKING([krb5-config reported vendor])
@@ -95,7 +95,7 @@ if test x$with_[]modname != xno; then
 		dnl # Only the heimdal version of the library has this function
 		dnl #
 		FR_SMART_CHECK_LIB(krb5, krb5_verify_user_opt)
-		if test "x$ac_cv_lib_krb5_krb5_verify_user_opt" == xyes; then
+		if test "x$ac_cv_lib_krb5_krb5_verify_user_opt" = xyes; then
 			krb5_api_type='heimdal'
 		else
 			krb5_api_type='mit'
@@ -118,13 +118,13 @@ if test x$with_[]modname != xno; then
 	dnl # Check how to free things returned by krb5_get_error_message
 	dnl #
 	AC_CHECK_FUNCS([krb5_get_error_message krb5_free_error_string krb5_free_error_message])
-	if test "x$ac_cv_func_krb5_get_error_message" == xyes; then
+	if test "x$ac_cv_func_krb5_get_error_message" = xyes; then
 		krb5mod_cflags="${krb5mod_cflags} -DHAVE_KRB5_GET_ERROR_MESSAGE"
 	fi
-	if test "x$ac_cv_func_krb5_free_error_message" == xyes; then
+	if test "x$ac_cv_func_krb5_free_error_message" = xyes; then
 		krb5mod_cflags="${krb5mod_cflags} -DHAVE_KRB5_FREE_ERROR_MESSAGE"
 	fi
-	if test "x$ac_cv_func_krb5_free_error_string" == xyes; then
+	if test "x$ac_cv_func_krb5_free_error_string" = xyes; then
 		krb5mod_cflags="${krb5mod_cflags} -DHAVE_KRB5_FREE_ERROR_STRING"
 	fi
 
@@ -135,15 +135,15 @@ if test x$with_[]modname != xno; then
 		krb5threadsafe=
 
 		FR_SMART_CHECK_LIB(krb5, krb5_is_thread_safe)
-		if test "x$ac_cv_lib_krb5_krb5_is_thread_safe" == xyes; then
+		if test "x$ac_cv_lib_krb5_krb5_is_thread_safe" = xyes; then
 			AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]], [[return krb5_is_thread_safe() ? 0 : 1]])],
 				[krb5threadsafe="-DKRB5_IS_THREAD_SAFE"], [AC_MSG_WARN([[libkrb5 is not threadsafe]])])
 		fi
 	else
 		krb5threadsafe=""
 	fi
 
-	if test "$krb5_api_type" == "mit"; then
+	if test "$krb5_api_type" = "mit"; then
 		dnl #
 		dnl # This lives in different places depending on the distro
 		dnl #

src/modules/rlm_ldap/configure

@@ -3385,7 +3385,7 @@ smart_prefix=
 $as_echo "#define WITH_SASL 1" >>confdefs.h
 
 	    SASL=sasl.c
-          fi
+	  fi
 	fi
 
 	targetname=rlm_ldap

src/modules/rlm_perl/configure.ac

@@ -76,7 +76,7 @@ if test x$with_[]modname != xno; then
 		[LINKS="yes"], [LINKS="no"])
 
 		AC_MSG_RESULT($LINKS)
-		if test "x$LINKS" == "xno"; then
+		if test "x$LINKS" = "xno"; then
 			fail="$fail libperl.so"
 			targetname=
 		fi
@@ -90,7 +90,7 @@ if test x$with_[]modname != xno; then
 		[LINKS="yes"], [LINKS="no"])
 
 		AC_MSG_RESULT($LINKS)
-		if test "x$LINKS" == "xno"; then
+		if test "x$LINKS" = "xno"; then
 			fail="$fail libperl.so"
 			targetname=
 		fi

src/modules/rlm_yubikey/configure

@@ -3704,7 +3704,7 @@ if test "x$smart_lib" != "x"; then
   SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
 fi
 
-	if test "x$ac_cv_lib_ykclient_ykclient_request" == "xyes"; then
+	if test "x$ac_cv_lib_ykclient_ykclient_request" = "xyes"; then
 	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libykclient missing ykclient_request_process. A later version of libykclient is required." >&5
 $as_echo "$as_me: WARNING: libykclient missing ykclient_request_process. A later version of libykclient is required." >&2;}
 	else

src/modules/rlm_yubikey/configure.ac

@@ -163,7 +163,7 @@ if test x$with_[]modname != xno; then
     if test "x$ac_cv_lib_ykclient_ykclient_request_process" != "xyes"; then
 	have_ykclient="no"
 	FR_SMART_CHECK_LIB([ykclient], [ykclient_request])
-	if test "x$ac_cv_lib_ykclient_ykclient_request" == "xyes"; then
+	if test "x$ac_cv_lib_ykclient_ykclient_request" = "xyes"; then
 	    AC_MSG_WARN([libykclient missing ykclient_request_process. A later version of libykclient is required.])
 	else
 	    AC_MSG_WARN([ykclient libraries not found. Use --with-ykclient-lib-dir=<path>.])