VMS: Rearrange installation targets for shared libraries

The way it was implemented before this change, the shared libraries
were installed twice.  On a file system that supports file
generations, that's a waste.  Slightly rearranging the install targets
solves the problem.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Configurations/descrip.mms.tmpl

@@ -353,9 +353,13 @@ descrip.mms : FORCE
 
 # Install helper targets #############################################
 
-install_sw : all install_dev install_engines install_runtime install_startup install_ivp
+install_sw : all install_shared _install_dev_ns -
+             install_engines _install_runtime_ns -
+             install_startup install_ivp
 
-uninstall_sw : uninstall_dev uninstall_engines uninstall_runtime uninstall_startup uninstall_ivp
+uninstall_sw : uninstall_shared _uninstall_dev_ns -
+               uninstall_engines _uninstall_runtime_ns -
+               uninstall_startup uninstall_ivp
 
 install_docs : install_html_docs
 
@@ -374,7 +378,17 @@ install_ssldirs : check_INSTALLTOP
         COPY/PROT=W:RE {- sourcefile("apps", "openssl-vms.cnf") -} -
                 ossl_dataroot:[000000]openssl.cnf
 
-install_dev : check_INSTALLTOP
+install_shared : check_INSTALLTOP
+        @ {- output_off() if $disabled{shared}; "" -} !
+        @ WRITE SYS$OUTPUT "*** Installing shareable images"
+        @ ! Install shared (runtime) libraries
+        - CREATE/DIR ossl_installroot:[LIB.'arch']
+        {- join("\n        ",
+                map { "COPY/PROT=W:R $_.EXE ossl_installroot:[LIB.'arch']" }
+                @install_shlibs) -}
+        @ {- output_on() if $disabled{shared}; "" -} !
+
+_install_dev_ns : check_INSTALLTOP
         @ WRITE SYS$OUTPUT "*** Installing development files"
         @ ! Install header files
         - CREATE/DIR ossl_installroot:[include.openssl]
@@ -384,22 +398,10 @@ install_dev : check_INSTALLTOP
         {- join("\n        ",
                 map { "COPY/PROT=W:R $_.OLB ossl_installroot:[LIB.'arch']" }
                 @{$unified_info{install}->{libraries}}) -}
-        @ {- output_off() if $disabled{shared}; "" -} !
-        @ ! Install shared (runtime) libraries
-        {- join("\n        ",
-                map { "COPY/PROT=W:R $_.EXE ossl_installroot:[LIB.'arch']" }
-                @install_shlibs) -}
-        @ {- output_on() if $disabled{shared}; "" -} !
 
-install_runtime : check_INSTALLTOP
-        @ ! {- output_off() if $disabled{apps}; "" -}
-        @ WRITE SYS$OUTPUT "*** Installing runtime files"
-        @ {- output_off() if $disabled{shared}; "" -} !
-        @ ! Install shared (runtime) libraries
-        {- join("\n        ",
-                map { "COPY/PROT=W:R $_.OLB ossl_installroot:[LIB.'arch']" }
-                @install_shlibs) -}
-        @ {- output_on() if $disabled{shared}; "" -} !
+install_dev : install_shared _install_dev_ns
+
+_install_runtime_ns : check_INSTALLTOP
         @ ! Install the main program
         - CREATE/DIR ossl_installroot:[EXE.'arch']
         COPY/PROT=W:RE [.APPS]openssl.EXE -
@@ -408,6 +410,8 @@ install_runtime : check_INSTALLTOP
         COPY/PROT=W:RE $(BIN_SCRIPTS) ossl_installroot:[EXE]
         @ ! {- output_on() if $disabled{apps}; "" -}
 
+install_runtime : install_shared _install_runtime_ns
+
 install_engines : check_INSTALLTOP
         @ {- output_off() unless scalar @{$unified_info{engines}}; "" -} !
         @ WRITE SYS$OUTPUT "*** Installing engines"