macros: provide %pgtest_* macros for compatibility

But only for 'postgresql' services (not for SCLs).  And also warn
appropriately that the macro will be removed.

* configure.ac (COMPAT_MACROS): New automake conditional.
* lib/rpm/Makefile.inc: Edit the macros file when necessary, and
warn the user.

Author: praiskup

configure.ac

@@ -188,6 +188,15 @@ _AX_TEXT_TPL_SUBST([NAME_PACKAGE])
 _AX_TEXT_TPL_SUBST([NAME_SERVICE])
 _AX_TEXT_TPL_SUBST([NAME_SERVICE_VARNAME])
 
+AC_MSG_CHECKING([whether to install compat %pgtest_* macros])
+# This hack shouldn't be removed sooner than once the F27 postgresql is EOL,
+# since taht's probably the last Fedora release where %pgtest_* macros were
+# used by default.
+COMPAT_MACROS=no
+test "$NAME_SERVICE" = postgresql && COMPAT_MACROS=yes
+AC_MSG_RESULT($COMPAT_MACROS)
+AM_CONDITIONAL([COMPAT_MACROS], [test "$COMPAT_MACROS" = yes])
+
 AC_OUTPUT
 
 AC_MSG_NOTICE([Configured the folowing way:

lib/rpm/Makefile.inc

@@ -8,3 +8,11 @@ EXTRA_DIST	+= $(rpm_macros_in)
 
 $(rpm_macros): $(rpm_macros_in) $(text_tpl_deps)
 	$(text_tpl_gen)
+if COMPAT_MACROS
+	@chmod +w "$@" ; ( \
+	echo ; \
+	compat() { echo %$$1 echo "2>&1" WARN: macro $$1 will be removed, use $$2 ";" %$$2 ; } ; \
+	compat pgtests_init @NAME_SERVICE_VARNAME@_tests_init >> "$@" ; \
+	compat pgtests_start @NAME_SERVICE_VARNAME@_tests_start >> "$@" ; \
+	) >> "$@" && chmod -w "$@"
+endif