xref: /netbsd-src/external/gpl3/autoconf/dist/tests/compile.at (revision d874e91932377fc40d53f102e48fc3ee6f4fe9de) 
1#							-*- Autotest -*-
2
3AT_BANNER([Low level compiling/preprocessing macros.])
4
5# Copyright (C) 2000-2001, 2003, 2005-2012 Free Software Foundation,
6# Inc.
7#
8# This program is free software: you can redistribute it and/or modify
9# it under the terms of the GNU General Public License as published by
10# the Free Software Foundation, either version 3 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program.  If not, see <http://www.gnu.org/licenses/>.
20
21
22# Since the macros which compile are required by most tests, check
23# them first.  But remember that looking for a compiler is even more
24# primitive, so check those first.
25
26
27## ------------------------------------- ##
28## AC_LANG, AC_LANG_PUSH & AC_LANG_POP.  ##
29## ------------------------------------- ##
30
31AT_SETUP([[AC_LANG, AC_LANG_PUSH & AC_LANG_POP]])
32
33AT_DATA([configure.ac],
34[[AC_INIT
35# C
36AC_LANG([C])
37# C
38AC_LANG_PUSH([C])
39# C C
40AC_LANG_PUSH([C++])
41# C++ C C
42AC_LANG([C++])
43# C++ C C
44AC_LANG_PUSH([Erlang])
45# Erlang C++ C C
46AC_LANG_PUSH([Fortran 77])
47# F77 Erlang C++ C C
48AC_LANG_POP([Fortran 77])
49# Erlang C++ C C
50AC_LANG_POP([Erlang])
51# C++ C C
52AC_LANG([C++])
53# C++ C C
54AC_LANG_POP([C++])
55# C C
56AC_LANG_POP([C])
57# C
58]])
59
60AT_CHECK_AUTOCONF
61AT_CHECK([sed -n 's/^ac_ext=//p' configure], 0,
62[c
63c
64c
65cpp
66cpp
67erl
68f
69erl
70cpp
71cpp
72c
73c
74])
75
76AT_CLEANUP
77
78
79## ---------------------- ##
80## AC_REQUIRE & AC_LANG.  ##
81## ---------------------- ##
82
83AT_SETUP([AC_REQUIRE & AC_LANG])
84
85AT_DATA([configure.ac],
86[[AC_DEFUN([AC_F77_1],
87[AC_LANG_PUSH([Fortran 77])
88if test $ac_ext != f; then
89  AC_MSG_ERROR([F77_1: current shell language is $ac_ext, expected Fortran])
90fi
91AC_LANG_POP
92])
93
94
95AC_DEFUN([AC_F77_2],
96[AC_LANG_PUSH([Fortran 77])
97AC_REQUIRE([AC_F77_1])
98if test $ac_ext != f; then
99  AC_MSG_ERROR([F77_2: current shell language is $ac_ext, expected Fortran])
100fi
101AC_LANG_POP
102])
103
104AC_INIT
105AC_F77_2
106AS_EXIT(0)
107]])
108
109AT_CHECK_AUTOCONF
110AT_CHECK_CONFIGURE
111
112AT_CLEANUP
113
114
115## ---------------- ##
116## AC_LANG_SOURCE.  ##
117## ---------------- ##
118
119AT_SETUP([AC_LANG_SOURCE])
120
121AT_DATA([configure.ac],
122[[AC_INIT([pkg], [1.0])
123AC_PROG_CC
124AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME
125choke me
126#endif
127int main ()
128{
129  return 0;
130}
131]], [], [AC_MSG_FAILURE([confdefs not included])])])
132]])
133
134AT_CHECK_AUTOCONF
135AT_CHECK_CONFIGURE
136
137AT_CLEANUP
138
139
140## --------------------- ##
141## AC_LANG_SOURCE(C++).  ##
142## --------------------- ##
143
144AT_SETUP([AC_LANG_SOURCE(C++)])
145
146AT_DATA([configure.ac],
147[[AC_INIT([pkg], [1.0])
148AC_PROG_CXX
149AC_LANG([C++])
150AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#ifndef PACKAGE_NAME
151choke me
152#endif
153int main ()
154{
155  return 0;
156}
157]], [], [AC_MSG_FAILURE([confdefs not included])])])
158]])
159
160AT_CHECK_AUTOCONF
161AT_CHECK_CONFIGURE
162
163AT_CLEANUP
164
165
166## ------------------------ ##
167## AC_LANG_SOURCE example.  ##
168## ------------------------ ##
169
170AT_SETUP([AC_LANG_SOURCE example])
171
172# Set CONFIG_SITE to a nonexistent file, so that there are
173# no worries about configure output caused by sourcing a config.site.
174CONFIG_SITE=no-such-file
175export CONFIG_SITE
176
177AT_DATA([configure.ac],
178[[# Taken from autoconf.texi:Generating Sources.
179# The only change is to not fail if gcc doesn't work.
180AC_INIT([Hello], [1.0], [bug-hello@example.org], [],
181        [http://www.example.org/])
182AC_DEFINE([HELLO_WORLD], ["Hello, World\n"],
183  [Greetings string.])
184AC_LANG([C])
185AC_LANG_CONFTEST(
186   [AC_LANG_SOURCE([[const char hw[] = "Hello, World\n";]])])
187gcc -E -dD conftest.c || AS_EXIT([77])
188]])
189
190AT_CHECK_AUTOCONF
191AT_CHECK_CONFIGURE([], [], [stdout])
192# Taken from autoconf.texi:Generating Sources.
193# Note that the output may contain more defines and lines matching
194#   # 1 "conftest.c"
195# so delete everything before the interesting output.
196AT_CHECK([sed -n 's/ *$//; /#define PACKAGE/,$p' stdout], [],
197[[#define PACKAGE_NAME "Hello"
198#define PACKAGE_TARNAME "hello"
199#define PACKAGE_VERSION "1.0"
200#define PACKAGE_STRING "Hello 1.0"
201#define PACKAGE_BUGREPORT "bug-hello@example.org"
202#define PACKAGE_URL "http://www.example.org/"
203#define HELLO_WORLD "Hello, World\n"
204
205const char hw[] = "Hello, World\n";
206]])
207
208AT_CLEANUP
209
210
211## ------------------------- ##
212## AC_LANG_PROGRAM example.  ##
213## ------------------------- ##
214
215AT_SETUP([AC_LANG_PROGRAM example])
216
217# Set CONFIG_SITE to a nonexistent file, so that there are
218# no worries about configure output caused by sourcing a config.site.
219CONFIG_SITE=no-such-file
220export CONFIG_SITE
221
222AT_DATA([configure.ac],
223[[# Taken from autoconf.texi:Generating Sources.
224# The only change is to not fail if gcc doesn't work.
225AC_INIT([Hello], [1.0], [bug-hello@example.org], [],
226        [http://www.example.org/])
227AC_DEFINE([HELLO_WORLD], ["Hello, World\n"],
228  [Greetings string.])
229AC_LANG_CONFTEST(
230[AC_LANG_PROGRAM([[const char hw[] = "Hello, World\n";]],
231                 [[fputs (hw, stdout);]])])
232gcc -E -dD conftest.c || AS_EXIT([77])
233]])
234
235AT_CHECK_AUTOCONF
236AT_CHECK_CONFIGURE([], [], [stdout])
237# Taken from autoconf.texi:Generating Sources.
238# Note that the output may contain more defines and lines matching
239#   # 1 "conftest.c"
240# so delete everything before the interesting output.
241AT_CHECK([sed -n 's/ *$//; /#define PACKAGE/,$p' stdout], [],
242[[#define PACKAGE_NAME "Hello"
243#define PACKAGE_TARNAME "hello"
244#define PACKAGE_VERSION "1.0"
245#define PACKAGE_STRING "Hello 1.0"
246#define PACKAGE_BUGREPORT "bug-hello@example.org"
247#define PACKAGE_URL "http://www.example.org/"
248#define HELLO_WORLD "Hello, World\n"
249
250const char hw[] = "Hello, World\n";
251int
252main ()
253{
254fputs (hw, stdout);
255  ;
256  return 0;
257}
258]])
259
260AT_CLEANUP
261
262
263## ------------------- ##
264## AC_COMPILE_IFELSE.  ##
265## ------------------- ##
266
267AT_SETUP([AC_COMPILE_IFELSE])
268AT_KEYWORDS([AC_LANG_DEFINES_PROVIDED])
269
270AT_DATA([configure.ac],
271[[AC_INIT
272AC_COMPILE_IFELSE([int main () { return 0; }], [],
273  [AC_MSG_ERROR([compiling trivial program failed])])
274]])
275
276AT_CHECK_AUTOCONF([], [], [], [stderr])
277AT_CHECK([grep 'no AC_LANG_SOURCE call detected in body' stderr], [], [ignore])
278AT_CHECK_AUTOCONF([-W no-syntax])
279AT_CHECK_CONFIGURE([-q])
280
281AT_DATA([configure.ac],
282[[AC_INIT
283AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED()int main () { return 0; }], [],
284  [AC_MSG_ERROR([compiling trivial program failed])])
285]])
286
287AT_CHECK_AUTOCONF
288AT_CHECK_CONFIGURE([-q])
289
290AT_DATA([configure.ac],
291[[AC_INIT
292AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [return 0])],
293	      [],
294	      [AC_MSG_ERROR([compiling `return 0' failed])])
295
296AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [return 2])],
297	      [],
298	      [AC_MSG_ERROR([compiling `return 2' failed])])
299]])
300
301AT_CHECK_AUTOCONF
302AT_CHECK_CONFIGURE([-q])
303
304AT_CLEANUP
305
306## --------------- ##
307## AC_RUN_IFELSE.  ##
308## --------------- ##
309
310AT_SETUP([AC_RUN_IFELSE])
311AT_KEYWORDS([AC_TRY_RUN])
312
313AT_DATA([configure.ac],
314[[AC_INIT
315
316AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0])],
317	      [],
318	      [AC_MSG_ERROR([saw `return 0' as a failure])])
319
320AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 2])],
321	      [AC_MSG_ERROR([saw `return 2' as a success])],
322	      [estatus=$?
323test $estatus != 2 &&
324  AC_MSG_ERROR([did not get as 2 exit status: $estatus])])
325
326# The old stinky one.
327AC_TRY_RUN([int main () { return 3; }],
328	   [AC_MSG_ERROR([saw `return 3' as a success])],
329	   [estatus=$?
330test $estatus != 3 &&
331  AC_MSG_ERROR([did not get 3 as exit status: $estatus])])
332
333]])
334
335AT_CHECK_AUTOCONF
336AT_CHECK_CONFIGURE([-q])
337
338AT_CLEANUP
339
340## --------------------------  ##
341## Order of `rm' and actions.  ##
342## --------------------------  ##
343
344AT_SETUP([Order of user actions and cleanup])
345AT_DATA([configure.ac],
346[[AC_INIT
347AC_PROG_CC
348
349AC_PREPROC_IFELSE([AC_LANG_PROGRAM([int grepme;], [])],
350		  [{ test -f conftest.err && grep grepme conftest.i; } || AS_EXIT([1])],
351		  [AS_EXIT([1])])
352AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#define 12 34 /*], [])],
353		  [AS_EXIT([1])],
354		  [test -f conftest.err || AS_EXIT([1])])
355
356AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int ok;], [])],
357		  [test -f conftest.$ac_objext || AS_EXIT([1])],
358		  [AS_EXIT([1])])
359AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])],
360		  [AS_EXIT([1])],
361		  [test -f conftest.err || AS_EXIT([1])])
362
363AC_LINK_IFELSE([AC_LANG_PROGRAM([int ok;], [])],
364	       [test -f conftest$ac_exeext || AS_EXIT([1])],
365	       [AS_EXIT([1])])
366AC_LINK_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])],
367	       [AS_EXIT([1])],
368	       [test -f conftest.err || AS_EXIT([1])])
369
370AC_RUN_IFELSE([AC_LANG_PROGRAM([int ok;], [])],
371	      [./conftest$ac_exeext || AS_EXIT([1])],
372	      [AS_EXIT([1])])
373
374d@&t@nl conftest.err not generated by AC_RUN_IFELSE?
375AC_RUN_IFELSE([AC_LANG_PROGRAM([int bad bad;], [])],
376	      [AS_EXIT([1])],
377	      [])
378]])
379
380AT_CHECK_AUTOCONF
381AT_CHECK_CONFIGURE([-q])
382
383AT_CLEANUP
384
385
386## ------------------ ##
387## AC_TRY_LINK_FUNC.  ##
388## ------------------ ##
389
390AT_CHECK_MACRO([AC_TRY_LINK_FUNC],
391[AC_TRY_LINK_FUNC(printf,,
392		  [AC_MSG_ERROR([cannot find `printf'])])
393AC_TRY_LINK_FUNC(Be_doomed_if_your_libc_has_a_function_named_like_this,
394		 [AC_MSG_ERROR([found a nonexistent function])])])
395
396## -------------------- ##
397## Multiple languages.  ##
398## -------------------- ##
399
400AT_SETUP([Multiple languages])
401
402# This test should be skipped if the C compiler is a C++ compiler.
403AT_DATA([configure.ac],
404[[AC_INIT
405
406AC_PROG_CC
407AC_COMPILE_IFELSE([
408  AC_LANG_PROGRAM([[
409    #ifdef __cplusplus
410    choke me
411    #endif
412  ]])], [], AS_EXIT([77]))
413]])
414
415AT_CHECK_AUTOCONF
416AT_CHECK_CONFIGURE
417
418# This test should be skipped on systems without a C++ compiler.
419AT_DATA([configure.ac],
420[[AC_INIT
421
422AC_PROG_CXX
423AC_LANG_PUSH([C++])
424AC_COMPILE_IFELSE([
425  AC_LANG_PROGRAM([[
426    #ifndef __cplusplus
427    choke me
428    #endif
429  ]])], [], AS_EXIT([77]))
430AC_LANG_POP([C++])
431]])
432
433AT_CHECK_AUTOCONF
434AT_CHECK_CONFIGURE
435
436AT_DATA([configure.ac],
437[[AC_INIT
438
439AC_PROG_CC
440AC_PROG_CXX
441
442AC_LANG_PUSH([C])
443AC_MSG_CHECKING([a simple C program that is not valid C++])
444AC_COMPILE_IFELSE([AC_LANG_PROGRAM([enum a { A, B, C };
445				    enum a f(enum a in) { return in++; }], [])],
446		  [AC_MSG_RESULT([ok])],
447		  [AC_MSG_RESULT([failed])
448		   AC_MSG_ERROR([could not compile test program])])
449AC_LANG_POP([C])
450
451AC_LANG_PUSH([C++])
452AC_MSG_CHECKING([a simple C++ program that is not valid C])
453AC_COMPILE_IFELSE([AC_LANG_PROGRAM([class A {};], [])],
454		  [AC_MSG_RESULT([ok])],
455		  [AC_MSG_RESULT([failed])
456		   AC_MSG_ERROR([could not compile test program])])
457
458AC_CHECK_HEADER([cstring])
459AC_LANG_POP([C++])
460]])
461
462AT_CHECK_AUTOCONF
463AT_CHECK_CONFIGURE([-q])
464
465AT_CLEANUP
466