In cflags generate a case statement of file basenames by parsing MANIFEST.smoke-me/cflags

Previously cflags.SH contained a somewhat stale pre-canned list of file
basenames including removed files such as usersub (deleted before 5.000
shipped), and a partial list of 5.000 XS extensions. Parsing MANIFEST to get
the names of the top level C files minimised the maintenance needed to keep
the case statement current.

1 files changed, 7 insertions, 46 deletions

diff --git a/cflags.SH b/cflags.SH
index f57cf2fc3e..ec1eedf93a 100755
--- a/cflags.SH
+++ b/cflags.SH
@@ -273,53 +273,14 @@ for file do
     : or customize here
 
     case "$file" in
-    DB_File) ;;
-    GDBM_File) ;;
-    NDBM_File) ;;
-    ODBM_File) ;;
-    POSIX) ;;
-    SDBM_File) ;;
-    av) ;;
-    byterun) ;;
-    deb) ;;
-    dl) ;;
-    doio) ;;
-    doop) ;;
-    dump) ;;
-    globals) ;;
-    gv) ;;
-    hv) ;;
-    locale) ;;
-    madly) ;;
-    main) ;;
-    malloc) ;;
-    mg) ;;
-    miniperlmain) ;;
-    numeric) ;;
-    op) ;;
-    opmini) ;;
-    pad) ;;
-    perl) ;;
-    perlapi) ;;
     perlmain) ;;
-    perly) ;;
-    pp) ;;
-    pp_ctl) ;;
-    pp_hot) ;;
-    pp_pack) ;;
-    pp_sort) ;;
-    pp_sys) ;;
-    regcomp) ;;
-    regexec) ;;
-    run) ;;
-    scope) ;;
-    sv) ;;
-    taint) ;;
-    toke) ;;
-    universal) ;;
-    usersub) ;;
-    utf8) ;;
-    util) ;;
+    opmini) ;;
+    perlmini) ;;
+!NO!SUBS!
+
+    $awk '{if ($1 ~ /^([a-z]+)\.c$/) print "    " $1;}' MANIFEST | $sed -e 's/\.c/\) ;;/' >>cflags
+
+$spitshell >>cflags <<'!NO!SUBS!'
     *) ;;
     esac