cduce/trunk/configure.ml

(*
#use "topfind";;
#require "findlib";;
*)

open Printf

let not_distrib = Sys.file_exists "Makefile.distrib"

let usage () =
  print_string "\
Configuration of CDuce.

Usage: ./configure [OPTION]...

Defaults for the options are specified in brackets.

Options:
 --help                display this help and exit

Optional features:
 --with-FEATURE        force support for FEATURE [default: autodetect]
 --without-FEATURE     disable support for FEATURE [default: autodetect]

 Available features:
 ocamlopt              use ocamlopt instead of ocamlc to build CDuce
 pxp_wlex              use wlexers for parsing utf8 with PXP [default: false]
 pxp                   support for the PXP XML parser
 expat                 support for the expat XML parser
 curl                  support for the libcurl library
 netclient             support for the netclient library
 cgi                   support for the cgi library 

OCaml/CDuce interface:
 --mliface=DIR         build the interface with the OCaml sources in DIR

Installation directories:
 --prefix=PREFIX       install files in PREFIX [/usr/local]
 --bindir=DIR          install user executables in DIR [PREFIX/bin]
 --mandir=DIR          install man documentation in DIR [PREFIX/man]
 --docdir=DIR          install the rest of the doc in DIR [PREFIX/doc/cduce]
";
if not_distrib then print_string "
 --wprefix=WPREFIX     root directory of the web-server [/var/www]
 --cgidir=DIR          install the cgi-bin interpreter in DIR [WPREFIX/cgi-bin]
 --htmldir=DIR         install the website in DIR [WPREFIX/html]
 --sessiondir=DIR      store the open sessions of the cgi-bin in DIR 
                       [/tmp/cduce_sessions]
"

let features = 
  [ "ocamlopt", ref `auto;
    "mliface", ref `auto;
    "pxp", ref `auto;
    "expat", ref `auto;
    "curl", ref `auto;
    "netclient", ref `auto;
    "cgi", ref `auto;
    "pxp_wlex", ref `no ]
  
let vars = 
  [ "prefix", ref "/usr/local";
    "bindir", ref "";
    "mandir", ref "";
    "docdir", ref "";

    "wprefix", ref "/var/www";
    "cgidir", ref "";
    "htmldir", ref "";

    "sessiondir", ref "/tmp/cduce_sessions";
    "mliface", ref ""
  ]


let src_dirs = ["/usr/src"; "/usr/local/src"; "/tmp"]
        
let fatal s = printf "*** Fatal error: %s\n" s; exit 1
let warning s = printf "* Warning: %s\n" s

let log s =
  let oc = open_out_gen [ Open_append; Open_creat ] 0o600 "configure.log" in
  output_string oc s;
  output_char oc '\n';
  close_out oc;
  flush stdout

let command s =
  log ("==> " ^ s);
  Sys.command (sprintf "%s 2>> configure.log" s) = 0

let start_with s p =
  let ls = String.length s and lp = String.length p in
  if (ls >= lp) && (String.sub s 0 lp = p)
  then Some (String.sub s lp (ls - lp)) else None
    
let parse_arg s =
  if s = "--help" then (usage (); exit 0)
  else
    match start_with s "--with-" with
      | Some f -> (List.assoc f features) := `yes
      | None ->
    match start_with s "--without-" with
      | Some f -> (List.assoc f features) := `no
      | None ->
    let i = String.index s '=' in
    if i < 2 then raise Not_found;
    let n = String.sub s 2 (i - 2) in
    let v = String.sub s (succ i) (String.length s - i - 1) in
    (List.assoc n vars) := v

let () =
  print_endline "Configuring CDuce for compilation...\n";
  (try for i = 1 to Array.length Sys.argv - 1 do parse_arg Sys.argv.(i) done
  with Not_found -> usage (); fatal "Incorrect command line");
  (try Sys.remove "configure.log" with Sys_error _ -> ());
  ignore (Sys.command "uname -a >> configure.log")

let print s = print_string s; flush stdout

let check_feature f p =
  printf "%s: " f;
  match !(List.assoc f features) with
    | `no -> 
        print "disabled\n"; false
    | `yes -> 
        print "checking... ";
        if p () 
        then (print "ok\n"; true) 
        else (print "failed !\n"; fatal "Required feature is not available")
    | `auto -> 
        print "autodetecting... ";
        if p () 
        then (print "enabled\n"; true)
        else (print "disabled\n"; false)

let native = 
  check_feature "ocamlopt" (fun () -> command "ocamlfind ocamlopt")

let check_pkg p () =
  try
(*    ignore (Findlib.package_property
      [ (if native then "native" else "bytecode") ]
      p "archive"); *)
    command 
      (sprintf 
         "ocamlfind ocaml%s -package %s -linkpkg -o configure.try && rm -f configure.try"
         (if native then "opt" else "c")
         p)
  with Not_found -> false

let need_pkg p =
  printf "Checking for package %s... " p; flush stdout;
  if not (check_pkg p ()) 
  then (print "failed !\n"; fatal "Required package is not available")
  else (print "ok\n")

let dir ?def d = 
  let s = !(List.assoc d vars) in
  if s <> "" then s
  else match def with 
    | Some x -> x 
    | None -> fatal (sprintf "%s cannot be empty" d)


let exe = match Sys.os_type with 
  | "Win32" ->
      print "Win32 detected... executable will have .exe extension\n"; ".exe" 
  | "Cygwin" ->
      print "Cygwin detected... executable will have .exe extension\n"; ".exe" 
  | _ -> ""

let add_icon = match Sys.os_type with 
  | "Win32" | "Cygwin" -> true
  | _ -> false

let check_mliface dir =
(*  Sys.file_exists (Filename.concat dir "typing/types.ml") *)
  Sys.file_exists (Filename.concat dir "typing/types.ml") 

let ocaml_stdlib () =
  if (Sys.command "ocamlc -where > ocaml_stdlib" <> 0) then
    fatal "Can't run ocamlc to get OCaml standard library path";
  let ic = open_in "ocaml_stdlib" in
  let s = input_line ic in
  close_in ic;
  Sys.remove "ocaml_stdlib";
  s

let make_absolute dir =
  if Filename.is_relative dir 
  then Filename.concat (Sys.getcwd ()) dir
  else dir

let ml_interface = 
  let dir1 = !(List.assoc "mliface" vars) in
  let dirs = if dir1 = "" then [] else [ make_absolute dir1 ] in
  print "ocaml sources... ";
  let rec loop = function
    | [] -> 
        print "not found (the interface will not be built)\n";
        None
    | d::dirs ->
        if check_mliface d then
          (print ("found: " ^ d ^ "\n"); Some d)
        else loop dirs
  in
  loop dirs
  
let pxp = check_feature "pxp" (check_pkg "pxp")
let expat = check_feature "expat" (check_pkg "expat")
let curl = check_feature "curl" (check_pkg "curl")
let netclient = check_feature "netclient" (check_pkg "netclient")
let cgi = check_feature "cgi" (check_pkg "netcgi1")
let pxp_wlex = check_feature "pxp_wlex" (check_pkg "pxp-wlex-utf8")
let prefix = dir "prefix"
let bindir = dir ~def:(prefix^"/bin") "bindir"
let mandir = dir ~def:(prefix^"/man") "mandir"
let docdir = dir ~def:(prefix^"/doc/cduce") "docdir"
let wprefix = dir "wprefix"
let cgidir = dir ~def:(wprefix^"/cgi-bin") "cgidir"
let htmldir = dir ~def:(wprefix^"/html") "htmldir"
let sessiondir = dir "sessiondir"

let curl,netclient = 
  match curl,netclient with
    | true,true -> 
        warning "Both netclient and curl are available. Will use curl.";
        true,false
    | false,false ->
        warning "No package for loading external URLs.";
        false,false
    | c,n -> c,n

let pxp,expat = 
  match pxp,expat with
    | true,true -> 
        warning "Both PXP and expat are available. Will build both and use expat by default.";
        true,true
    | false,false ->
        warning "No package for parsing XML documents.";
        false,false
    | c,n -> c,n

let cgi =
    if not(cgi) then
        (warning "No cgi package found: dtd2cduce and the web interface won't be built";
        false)
    else true

let required_packages = ["camlp4"; "num"; "pcre"; "ulex"; "netstring"]

let has_forpack =
  print "testing for -for-pack option: ";
  let comm =
    match Sys.os_type with
      | "Win32" -> "ocamlc -for-pack foo"
      | _ -> "ocamlc -for-pack foo 2> /dev/null" in
    if Sys.command comm = 0 then
      (print "available\n"; true)
    else
      (print "not available\n"; false)

let has_natdynlink =
  print "testing for native dynlink: ";
  if Sys.command "ocamlopt -o foo dynlink.cmxa && rm -f foo" = 0 then
    (printf "available\n"; true)
  else
    (print "not available\n"; false)

let () =
  List.iter need_pkg required_packages;
  if pxp then (
    need_pkg "pxp-engine";
    need_pkg "pxp-lex-iso88591";
    if not pxp_wlex then need_pkg "pxp-lex-utf8";
  );

  print "Creating Makefile.conf...\n";

  let out = open_out "Makefile.conf" in
  fprintf out "# This file has been generated by the configure script\n";
  fprintf out "NATIVE=%b\n" native;
  (match ml_interface with
    | Some d -> fprintf out "ML_INTERFACE=true\nOCAML_SRC=%s\n" d
    | None -> fprintf out "ML_INTERFACE=false\n");
  fprintf out "PXP=%b\n" pxp;
  fprintf out "EXPAT=%b\n" expat;
  fprintf out "CURL=%b\n" curl;
  fprintf out "NETCLIENT=%b\n" netclient;
  fprintf out "CGI=%b\n" cgi;
  fprintf out "PXP_WLEX=%b\n" pxp_wlex;
  fprintf out "BINDIR=%s\n" bindir;
  fprintf out "MANDIR=%s\n" mandir;
  fprintf out "DOCDIR=%s\n" docdir;
  fprintf out "CGI_DIR=%s\n" cgidir;
  fprintf out "HTML_DIR=%s\n" htmldir;
  fprintf out "SESSION_DIR=%s\n" sessiondir;
  fprintf out "EXE=%s\n" exe;
  fprintf out "ADDICON=%b\n" add_icon;
  fprintf out "PROFILE=false\n";
  fprintf out "FORPACK=%b\n" has_forpack;
  fprintf out "NATDYNLINK=%b\n" has_natdynlink;
  close_out out
1	(*
2	#use "topfind";;
3	#require "findlib";;
4	*)
5
6	open Printf
7
8	let not_distrib = Sys.file_exists "Makefile.distrib"
9
10	let usage () =
11	print_string "\
12	Configuration of CDuce.
13
14	Usage: ./configure [OPTION]...
15
16	Defaults for the options are specified in brackets.
17
18	Options:
19	--help display this help and exit
20
21	Optional features:
22	--with-FEATURE force support for FEATURE [default: autodetect]
23	--without-FEATURE disable support for FEATURE [default: autodetect]
24
25	Available features:
26	ocamlopt use ocamlopt instead of ocamlc to build CDuce
27	pxp_wlex use wlexers for parsing utf8 with PXP [default: false]
28	pxp support for the PXP XML parser
29	expat support for the expat XML parser
30	curl support for the libcurl library
31	netclient support for the netclient library
32	cgi support for the cgi library
33
34	OCaml/CDuce interface:
35	--mliface=DIR build the interface with the OCaml sources in DIR
36
37	Installation directories:
38	--prefix=PREFIX install files in PREFIX [/usr/local]
39	--bindir=DIR install user executables in DIR [PREFIX/bin]
40	--mandir=DIR install man documentation in DIR [PREFIX/man]
41	--docdir=DIR install the rest of the doc in DIR [PREFIX/doc/cduce]
42	";
43	if not_distrib then print_string "
44	--wprefix=WPREFIX root directory of the web-server [/var/www]
45	--cgidir=DIR install the cgi-bin interpreter in DIR [WPREFIX/cgi-bin]
46	--htmldir=DIR install the website in DIR [WPREFIX/html]
47	--sessiondir=DIR store the open sessions of the cgi-bin in DIR
48	[/tmp/cduce_sessions]
49	"
50
51	let features =
52	[ "ocamlopt", ref `auto;
53	"mliface", ref `auto;
54	"pxp", ref `auto;
55	"expat", ref `auto;
56	"curl", ref `auto;
57	"netclient", ref `auto;
58	"cgi", ref `auto;
59	"pxp_wlex", ref `no ]
60
61	let vars =
62	[ "prefix", ref "/usr/local";
63	"bindir", ref "";
64	"mandir", ref "";
65	"docdir", ref "";
66
67	"wprefix", ref "/var/www";
68	"cgidir", ref "";
69	"htmldir", ref "";
70
71	"sessiondir", ref "/tmp/cduce_sessions";
72	"mliface", ref ""
73	]
74
75
76	let src_dirs = ["/usr/src"; "/usr/local/src"; "/tmp"]
77
78	let fatal s = printf "*** Fatal error: %s\n" s; exit 1
79	let warning s = printf "* Warning: %s\n" s
80
81	let log s =
82	let oc = open_out_gen [ Open_append; Open_creat ] 0o600 "configure.log" in
83	output_string oc s;
84	output_char oc '\n';
85	close_out oc;
86	flush stdout
87
88	let command s =
89	log ("==> " ^ s);
90	Sys.command (sprintf "%s 2>> configure.log" s) = 0
91
92	let start_with s p =
93	let ls = String.length s and lp = String.length p in
94	if (ls >= lp) && (String.sub s 0 lp = p)
95	then Some (String.sub s lp (ls - lp)) else None
96
97	let parse_arg s =
98	if s = "--help" then (usage (); exit 0)
99	else
100	match start_with s "--with-" with
101	\| Some f -> (List.assoc f features) := `yes
102	\| None ->
103	match start_with s "--without-" with
104	\| Some f -> (List.assoc f features) := `no
105	\| None ->
106	let i = String.index s '=' in
107	if i < 2 then raise Not_found;
108	let n = String.sub s 2 (i - 2) in
109	let v = String.sub s (succ i) (String.length s - i - 1) in
110	(List.assoc n vars) := v
111
112	let () =
113	print_endline "Configuring CDuce for compilation...\n";
114	(try for i = 1 to Array.length Sys.argv - 1 do parse_arg Sys.argv.(i) done
115	with Not_found -> usage (); fatal "Incorrect command line");
116	(try Sys.remove "configure.log" with Sys_error _ -> ());
117	ignore (Sys.command "uname -a >> configure.log")
118
119	let print s = print_string s; flush stdout
120
121	let check_feature f p =
122	printf "%s: " f;
123	match !(List.assoc f features) with
124	\| `no ->
125	print "disabled\n"; false
126	\| `yes ->
127	print "checking... ";
128	if p ()
129	then (print "ok\n"; true)
130	else (print "failed !\n"; fatal "Required feature is not available")
131	\| `auto ->
132	print "autodetecting... ";
133	if p ()
134	then (print "enabled\n"; true)
135	else (print "disabled\n"; false)
136
137	let native =
138	check_feature "ocamlopt" (fun () -> command "ocamlfind ocamlopt")
139
140	let check_pkg p () =
141	try
142	(* ignore (Findlib.package_property
143	[ (if native then "native" else "bytecode") ]
144	p "archive"); *)
145	command
146	(sprintf
147	"ocamlfind ocaml%s -package %s -linkpkg -o configure.try && rm -f configure.try"
148	(if native then "opt" else "c")
149	p)
150	with Not_found -> false
151
152	let need_pkg p =
153	printf "Checking for package %s... " p; flush stdout;
154	if not (check_pkg p ())
155	then (print "failed !\n"; fatal "Required package is not available")
156	else (print "ok\n")
157
158	let dir ?def d =
159	let s = !(List.assoc d vars) in
160	if s <> "" then s
161	else match def with
162	\| Some x -> x
163	\| None -> fatal (sprintf "%s cannot be empty" d)
164
165
166	let exe = match Sys.os_type with
167	\| "Win32" ->
168	print "Win32 detected... executable will have .exe extension\n"; ".exe"
169	\| "Cygwin" ->
170	print "Cygwin detected... executable will have .exe extension\n"; ".exe"
171	\| _ -> ""
172
173	let add_icon = match Sys.os_type with
174	\| "Win32" \| "Cygwin" -> true
175	\| _ -> false
176
177	let check_mliface dir =
178	(* Sys.file_exists (Filename.concat dir "typing/types.ml") *)
179	Sys.file_exists (Filename.concat dir "typing/types.ml")
180
181	let ocaml_stdlib () =
182	if (Sys.command "ocamlc -where > ocaml_stdlib" <> 0) then
183	fatal "Can't run ocamlc to get OCaml standard library path";
184	let ic = open_in "ocaml_stdlib" in
185	let s = input_line ic in
186	close_in ic;
187	Sys.remove "ocaml_stdlib";
188	s
189
190	let make_absolute dir =
191	if Filename.is_relative dir
192	then Filename.concat (Sys.getcwd ()) dir
193	else dir
194
195	let ml_interface =
196	let dir1 = !(List.assoc "mliface" vars) in
197	let dirs = if dir1 = "" then [] else [ make_absolute dir1 ] in
198	print "ocaml sources... ";
199	let rec loop = function
200	\| [] ->
201	print "not found (the interface will not be built)\n";
202	None
203	\| d::dirs ->
204	if check_mliface d then
205	(print ("found: " ^ d ^ "\n"); Some d)
206	else loop dirs
207	in
208	loop dirs
209
210	let pxp = check_feature "pxp" (check_pkg "pxp")
211	let expat = check_feature "expat" (check_pkg "expat")
212	let curl = check_feature "curl" (check_pkg "curl")
213	let netclient = check_feature "netclient" (check_pkg "netclient")
214	let cgi = check_feature "cgi" (check_pkg "netcgi1")
215	let pxp_wlex = check_feature "pxp_wlex" (check_pkg "pxp-wlex-utf8")
216	let prefix = dir "prefix"
217	let bindir = dir ~def:(prefix^"/bin") "bindir"
218	let mandir = dir ~def:(prefix^"/man") "mandir"
219	let docdir = dir ~def:(prefix^"/doc/cduce") "docdir"
220	let wprefix = dir "wprefix"
221	let cgidir = dir ~def:(wprefix^"/cgi-bin") "cgidir"
222	let htmldir = dir ~def:(wprefix^"/html") "htmldir"
223	let sessiondir = dir "sessiondir"
224
225	let curl,netclient =
226	match curl,netclient with
227	\| true,true ->
228	warning "Both netclient and curl are available. Will use curl.";
229	true,false
230	\| false,false ->
231	warning "No package for loading external URLs.";
232	false,false
233	\| c,n -> c,n
234
235	let pxp,expat =
236	match pxp,expat with
237	\| true,true ->
238	warning "Both PXP and expat are available. Will build both and use expat by default.";
239	true,true
240	\| false,false ->
241	warning "No package for parsing XML documents.";
242	false,false
243	\| c,n -> c,n
244
245	let cgi =
246	if not(cgi) then
247	(warning "No cgi package found: dtd2cduce and the web interface won't be built";
248	false)
249	else true
250
251	let required_packages = ["camlp4"; "num"; "pcre"; "ulex"; "netstring"]
252
253	let has_forpack =
254	print "testing for -for-pack option: ";
255	let comm =
256	match Sys.os_type with
257	\| "Win32" -> "ocamlc -for-pack foo"
258	\| _ -> "ocamlc -for-pack foo 2> /dev/null" in
259	if Sys.command comm = 0 then
260	(print "available\n"; true)
261	else
262	(print "not available\n"; false)
263
264	let has_natdynlink =
265	print "testing for native dynlink: ";
266	if Sys.command "ocamlopt -o foo dynlink.cmxa && rm -f foo" = 0 then
267	(printf "available\n"; true)
268	else
269	(print "not available\n"; false)
270
271	let () =
272	List.iter need_pkg required_packages;
273	if pxp then (
274	need_pkg "pxp-engine";
275	need_pkg "pxp-lex-iso88591";
276	if not pxp_wlex then need_pkg "pxp-lex-utf8";
277	);
278
279	print "Creating Makefile.conf...\n";
280
281	let out = open_out "Makefile.conf" in
282	fprintf out "# This file has been generated by the configure script\n";
283	fprintf out "NATIVE=%b\n" native;
284	(match ml_interface with
285	\| Some d -> fprintf out "ML_INTERFACE=true\nOCAML_SRC=%s\n" d
286	\| None -> fprintf out "ML_INTERFACE=false\n");
287	fprintf out "PXP=%b\n" pxp;
288	fprintf out "EXPAT=%b\n" expat;
289	fprintf out "CURL=%b\n" curl;
290	fprintf out "NETCLIENT=%b\n" netclient;
291	fprintf out "CGI=%b\n" cgi;
292	fprintf out "PXP_WLEX=%b\n" pxp_wlex;
293	fprintf out "BINDIR=%s\n" bindir;
294	fprintf out "MANDIR=%s\n" mandir;
295	fprintf out "DOCDIR=%s\n" docdir;
296	fprintf out "CGI_DIR=%s\n" cgidir;
297	fprintf out "HTML_DIR=%s\n" htmldir;
298	fprintf out "SESSION_DIR=%s\n" sessiondir;
299	fprintf out "EXE=%s\n" exe;
300	fprintf out "ADDICON=%b\n" add_icon;
301	fprintf out "PROFILE=false\n";
302	fprintf out "FORPACK=%b\n" has_forpack;
303	fprintf out "NATDYNLINK=%b\n" has_natdynlink;
304	close_out out