VMS: only explicitely translate names in library C files.

When compiling all other C files, rely on the compiler to
automatically pick up the name translation information from the header
files __DECC_INCLUDE_{PRO,EPI}LOGUE.H.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Configurations/10-main.conf

@@ -1799,12 +1799,14 @@ sub vms_info {
         inherit_from     => [ "BASE_VMS" ],
         template         => 1,
         cc               => "CC/DECC",
-        cflags           => picker(default => "/STANDARD=RELAXED/NOLIST/PREFIX=ALL/NAMES=(AS_IS,SHORTENED)",
+        cflags           => picker(default => "/STANDARD=RELAXED/NOLIST/PREFIX=ALL",
                                    debug   => "/NOOPTIMIZE/DEBUG",
                                    release => "/OPTIMIZE/NODEBUG"),
         lflags           => picker(default => "/MAP",
                                    debug   => "/DEBUG/TRACEBACK",
                                    release => "/NODEBUG/NOTRACEBACK"),
+        lib_cflags       => add("/NAMES=(AS_IS,SHORTENED)"),
+        dso_cflags       => add("/NAMES=(AS_IS,SHORTENED)"),
         shared_target    => "vms-shared",
         dso_scheme       => "vms",
         thread_scheme    => "pthreads",

Configurations/descrip.mms.tmpl

@@ -137,6 +137,9 @@ CFLAGS_Q=$(CFLAGS)
 DEPFLAG= /DEFINE=({- join(",", @{$config{depdefines}}) -})
 LDFLAGS= {- $target{lflags} -}
 EX_LIBS= {- $target{ex_libs} ? ",".$target{ex_libs} : "" -}{- $config{ex_libs} ? ",".$config{ex_libs} : "" -}
+LIB_CFLAGS={- $target{lib_cflags} || "" -}
+DSO_CFLAGS={- $target{dso_cflags} || "" -}
+BIN_CFLAGS={- $target{bin_cflags} || "" -}
 
 PERL={- $config{perl} -}
 
@@ -472,6 +475,9 @@ EOF
       my $srcs =
           join(", ",
                map { abs2rel(rel2abs($_), rel2abs($forward)) } @{$args{srcs}});
+      my $ecflags = { lib => '$(LIB_CFLAGS)',
+                      dso => '$(DSO_CFLAGS)',
+                      bin => '$(BIN_CFLAGS)' } -> {$args{intent}};
       my $incs_on = "\@ !";
       my $incs_off = "\@ !";
       my $incs = "";
@@ -502,7 +508,7 @@ $obj.OBJ : $deps
         ${before}
         SET DEFAULT $forward
         $incs_on
-        \$(CC) \$(CFLAGS)${incs}${depbuild} /OBJECT=${objd}${objn}.OBJ /REPOSITORY=$backward $srcs
+        \$(CC) \$(CFLAGS)${ecflags}${incs}${depbuild} /OBJECT=${objd}${objn}.OBJ /REPOSITORY=$backward $srcs
         $incs_off
         SET DEFAULT $backward
         ${after}