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

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