File: configure.ac

package info (click to toggle)
libpqxx 6.4.5-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 3,992 kB
  • sloc: cpp: 12,634; sh: 4,426; xml: 1,104; makefile: 309; python: 294; ansic: 3
file content (544 lines) | stat: -rw-r--r-- 15,425 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
# Generate configure script for libpqxx.  This needs the autoconf archive
# package installed.  (The configure script itself does not require it though.)

AC_PREREQ(2.69)
AC_INIT(
	libpqxx,
	[m4_esyscmd_s([./tools/extract_version])],
	[Jeroen T. Vermeulen])
AC_LANG(C++)
# Require C++11 at minimum.
AX_CXX_COMPILE_STDCXX_11([noext])
AC_CONFIG_SRCDIR([src/connection.cxx])
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_MACRO_DIR([config/m4])
AM_INIT_AUTOMAKE

PQXX_ABI=m4_esyscmd_s([./tools/extract_version --abi])
AC_SUBST(PQXXVERSION)
AC_SUBST(PQXX_ABI)

AC_CONFIG_HEADER([include/pqxx/config.h])

# Default prefix for installs.
AC_PREFIX_DEFAULT(/usr/local)

# Checks for programs.
AC_PROG_CXX
AC_PROG_INSTALL
AC_DISABLE_SHARED
AC_PROG_LIBTOOL
AC_PROG_MAKE_SET
AC_PATH_PROG([MKDIR], [mkdir])

# Documentation.
AC_ARG_ENABLE(
	documentation,
	[AS_HELP_STRING([--enable-documentation], [Generate documentation])],
	[],
	[enable_documentation=auto])
AC_ARG_VAR([DOXYGEN],
	[Path to doxygen needed to build reference documentation])
AC_PATH_TOOL([DOXYGEN], [doxygen], [nodoxygen])
AC_ARG_VAR([HAVE_DOT],
	[Variable used by doxygen to declare availibility of dot])
AC_CHECK_TOOL([HAVE_DOT], [dot], [YES], [NO])
AC_ARG_VAR([XMLTO], [Path to xmlto needed to build tutorial documentation])
AC_PATH_TOOL([XMLTO], [xmlto], [noxmlto])
AS_IF([test "$enable_documentation" = "yes" && test "$DOXYGEN" = "nodoxygen" -o "$XMLTO" = "noxmlto"],
	[AC_MSG_ERROR([could not files tools necessary to build documentation])])
AM_CONDITIONAL([BUILD_REFERENCE],
	[test "$enable_documentation" != "no" -a "$DOXYGEN" != "nodoxygen"])
AM_CONDITIONAL([BUILD_TUTORIAL],
	[test "$enable_documentation" != "no" -a "$XMLTO" != "xmlto"])

AM_MAINTAINER_MODE

# See if we want verbose compiler warnings.
AC_MSG_CHECKING([maintainer mode])
AC_ARG_ENABLE(maintainer-mode)
AC_MSG_RESULT(${enable_maintainer_mode})

# See if we want "audit," with loads of runtime checking.
AC_MSG_CHECKING([audit])
AC_ARG_ENABLE(audit)
AC_MSG_RESULT(${enable_audit})


AC_ARG_ENABLE(shared)
AS_IF(
    [test "${shared}" = "yes" ],
    [CPPFLAGS="$CPPFLAGS -DPQXX_SHARED"])


# Add options to compiler command line, if compiler accepts them.
add_compiler_opts_if_ok() {
	for option in $*
	do
		ACO_SAVE_CXXFLAGS="$CXXFLAGS"
		CXXFLAGS="$CXXFLAGS $option"
		AC_MSG_CHECKING([whether $CXX accepts $option])
		AC_COMPILE_IFELSE(
			[AC_LANG_PROGRAM([], [])],
			has_option=yes,
			has_option=no)
		AC_MSG_RESULT($has_option)
		AS_IF(
		    [test "$has_option" = "no" ],
		    [CXXFLAGS="$ACO_SAVE_CXXFLAGS"])
	done
}


# Add options to compiler command line, unconditionally.
add_compiler_opts() {
	CXXFLAGS="$CXXFLAGS $*"
}


# Let's try to get the compiler to be helpful.
#
# (Omit options -Weffc++ and -Wabi because they currently yield too many
# warnings in gcc's standard headers; omit -Wunreachable-code because it isn't
# always right)
if test "$GCC" = "yes"
then
	# In maintainer mode, enable all the warning options we can.
	if test "$enable_maintainer_mode" = "yes"
	then
		# "Eternal" (FLW) g++ options.  These have been around for
		# ages, and both g++ and clang++ support them.  Don't bother
		# checking for support; just add them to the compiler options.
		add_compiler_opts \
			-fstrict-enums \
			-Werror \
			-Wall \
			-pedantic \
			-Wcast-align  \
			-Wcast-qual  \
			-Wconversion \
			-Wctor-dtor-privacy \
			-Wendif-labels \
			-Wextra \
			-Wfloat-equal \
			-Wformat=2 \
			-Wformat-security \
			-Wmissing-include-dirs \
			-Wno-div-by-zero \
			-Wnon-virtual-dtor \
			-Wold-style-cast \
			-Woverlength-strings \
			-Woverloaded-virtual \
			-Wpointer-arith  \
			-Wredundant-decls \
			-Wshadow \
			-Wsign-promo \
			-Wwrite-strings  \
			-Wundef \
			-Wunused

		# "Iffy" g++ options.  Some reasonably current g++-like
		# compilers may not support these.
		add_compiler_opts_if_ok \
			-fnothrow-opt \
			-Wattribute-alias \
			-Wextra-semi \
			-Wlogical-op \
			-Wrestrict \
			-Wstringop-overflow \
			-Wsuggest-override \
			-Wzero-as-null-pointer-constant
	fi

	# In "audit," enable all runtime checks we can.
	if test "$enable_audit" = "yes"
	then
		add_compiler_opts_if_ok \
			-fsanitize=address \
			-fsanitize=leak \
			-fsanitize=undefined \
			-fsanitize-address-use-after-scope \
			-fstack-protector-all
	fi


AC_MSG_CHECKING([g++ visibility attribute])
gcc_visibility=yes
SAVE_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -Werror"
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[[
			struct __attribute__ ((visibility("hidden"))) d
			{
				d() {}
				void f() {}
			};
		]],
		[[d D; D.f()]]
	)],
	AC_DEFINE(
		[PQXX_HAVE_GCC_VISIBILITY],
		1,
		[Define if g++ supports visibility attribute.]),
	gcc_visibility=no)
AC_MSG_RESULT($gcc_visibility)
CXXFLAGS="$SAVE_CXXFLAGS"
if test "$gcc_visibility" = "yes"
then
    # Make internal definitions accessible only to the library itself.
    # Only definitions marked PQXX_LIBEXPORT will be accessible.
    add_compiler_opts -fvisibility=hidden
    add_compiler_opts -fvisibility-inlines-hidden
fi

# Check gcc "const" attribute.  (More like a stricter version of "pure").
AX_GCC_CONST_CALL
if test "$ax_cv_gcc_const_call"
then
	AC_DEFINE(
		[PQXX_HAVE_GCC_CONST],
		1,
		[Define if g++ supports const attribute.])
fi

if test "$deprecated" != "yes"
then
AC_MSG_CHECKING([g++ deprecation attribute])
gcc_deprecated=yes
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[[__attribute__ ((deprecated)) void f();]],
		[]
	)],
	AC_DEFINE(
		[PQXX_HAVE_GCC_DEPRECATED],
		1,
		[Define if g++ supports deprecated attribute.]),
	gcc_deprecated=no)
AC_MSG_RESULT($gcc_deprecated)
fi

AC_MSG_CHECKING([g++ pure attribute])
gcc_pure=yes
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM([void __attribute__ ((pure)) f();], [])],
	AC_DEFINE(
		[PQXX_HAVE_GCC_PURE],
		1,
		[Define if g++ supports pure attribute]),
	gcc_pure=yes)
AC_MSG_RESULT($gcc_pure)

fi # End of gcc-specific part.


AC_MSG_CHECKING([C++14 deprecation attribute])
deprecated=yes
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM([[/* */ [[deprecated]] void f(); ]], [])],
	AC_DEFINE(
		[PQXX_HAVE_DEPRECATED],
		1,
		[Define if compiler supports [[deprecated]] attribute]),
	deprecated=no)
AC_MSG_RESULT($deprecated)


AC_MSG_CHECKING([for C++17 std::optional support])
have_optional=yes
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[[#include <optional>]],
		[return std::optional<int>(0).value()]
	)],
	AC_DEFINE(
		[PQXX_HAVE_OPTIONAL],
		1,
		[Define if the compiler supports std::optional.]),
	have_optional=no)
AC_MSG_RESULT($have_optional)

if test "$have_optional" != "yes"
then
AC_MSG_CHECKING([for experimental C++17 std::optional support])
have_exp_optional=yes
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[#include <experimental/optional>],
		[return std::experimental::optional<int>(0).value()]
	)],
	AC_DEFINE(
		[PQXX_HAVE_EXP_OPTIONAL],
		1,
		[Define if the compiler supports std::experimental::optional.]),
	have_exp_optional=no)
AC_MSG_RESULT($have_exp_optional)
fi


# It's early 2019, and gcc's charconv supports integers but not yet floats.
# So for now, we test for int and float conversion... separately.
#
# It's worse for clang, which compiles the integer conversions but then fails
# at link time because of a missing symbol "__muloti4" when compiling
# "long long" code.  I couldn't resolve that symbol by adding -lm either.  So
# don't just compile these tests; link them as well.
AC_MSG_CHECKING([for C++17 charconv integer conversion])
have_charconv_int=yes
AC_LINK_IFELSE(
	[AC_LANG_PROGRAM(
		[#include <charconv>],
		[[
			char z[100];
			using ull = unsigned long long;
			auto rt = std::to_chars(z, z + sizeof(z), ull{0});
			if (rt.ec != std::errc{}) return 1;
			ull n;
			auto rf = std::from_chars(z, z + sizeof(z), n);
			if (rf.ec != std::errc{}) return 2;
			return int(n)
		]]
	)],
	AC_DEFINE(
		[PQXX_HAVE_CHARCONV_INT],
		1,
		[Define if <charconv> supports integer conversion.]),
	have_charconv_int=no)
AC_MSG_RESULT($have_charconv_int)

AC_MSG_CHECKING([for C++17 charconv floating-point conversion])
have_charconv_float=yes
AC_LINK_IFELSE(
	[AC_LANG_PROGRAM(
		[#include <charconv>],
		[[
			char z[100];
			using ld = long double;
			auto rt = std::to_chars(
				z, z + sizeof(z), ld{0.1},
				std::chars_format::generic);
			if (rt.ec != std::errc{}) return 1;
			ld n;
			auto rf = std::from_chars(z, z + sizeof(z), n);
			if (rf.ec != std::errc{}) return 2;
			return int(n)
		]]
	)],
	AC_DEFINE(
		[PQXX_HAVE_CHARCONV_FLOAT],
		1,
		[Define if <charconv> supports floating-point conversion.]),
	have_charconv_float=no)
AC_MSG_RESULT($have_charconv_float)

AX_HAVE_POLL(
        [AX_CONFIG_FEATURE_ENABLE(poll)],
        [AX_CONFIG_FEATURE_DISABLE(poll)])
AX_CONFIG_FEATURE(
	[poll],
	[System supports poll().],
	[HAVE_POLL],
	[System supports poll().])

if test "$ax_cv_have_poll" != "yes"
then
# No poll(); try for select() instead.
select_h=no
AC_CHECK_HEADERS([sys/select.h], [select_h=yes])

# Some systems keep select() in a separate library which is not linked by
# default.  See if we need one of those.
socklibok=no
AC_SEARCH_LIBS(select, socket nsl ws2_32 wsock32 winsock, [socklibok=yes])

# Microsoft proprietary libraries do not work with code that is generated with
# autoconf's SEARCH_LIBS macro, so we need to check manually and just use the
# first socket library available.
# We only do this if select() is not available by other means, to avoid picking
# up an unnecessary Windows compatibility library on a non-Windows system.
for l in ws2_32 wsock32 winsock
do
	if test "${socklibok}" != "yes"
	then
		AC_CHECK_LIB($l,main,LIBS="$LIBS -l$l";[socklibok=yes])
	fi
done

if test "${socklibok}" != "yes"
then
	AC_MSG_ERROR([
Could not figure out how to link a simple sockets-based program.  Please read
the config.log file for more clues as to why this failed.
])
fi

fi # No poll()


AC_CHECK_HEADERS([sys/time.h])


# Find PostgreSQL includes and libraries
AC_PATH_PROGS(PG_CONFIG, pg_config)
AC_PATH_PROG([PKG_CONFIG], [pkg-config])

AC_ARG_WITH(
    [postgres-include],
    [AS_HELP_STRING(
        [--with-postgres-include=DIR],
        [Use PostgreSQL includes from DIR.  Defaults to querying pg_config or pkg-config, whichever is available.])],
    AS_IF(
        [test "x$with_postgres_include" = "xyes"],
        [with_postgres_include=""]))

if test -n "$PG_CONFIG" && test -r "$PG_CONFIG"; then
AS_IF(
    [test -z "$with_postgres_include"],
    [with_postgres_include=$($PG_CONFIG --includedir)])
AC_MSG_NOTICE([using PostgreSQL headers at $with_postgres_include])
AC_SUBST(with_postgres_include)
POSTGRES_INCLUDE="-I${with_postgres_include}"
AC_SUBST(POSTGRES_INCLUDE)
elif test -n "$PKG_CONFIG" && test -r "$PKG_CONFIG"; then
AS_IF(
    [test -z "$with_postgres_include"],
    [with_postgres_include=$($PKG_CONFIG libpq --cflags | sed 's/^-I//')])
AC_MSG_NOTICE([using PostgreSQL headers at $with_postgres_include])
AC_SUBST(with_postgres_include)
POSTGRES_INCLUDE="-I${with_postgres_include}"
AC_SUBST(POSTGRES_INCLUDE)
else
       AC_MSG_ERROR([
Neither PostgreSQL configuration script pg_config nor pkg-config found.
Make sure at least one of these is in your command path before configuring.
Without either of them, the configure script has no way to find the right
location for the libpq library and its headers.
])
fi

AC_ARG_WITH(
    [postgres-lib],
    [AS_HELP_STRING(
        [--with-postgres-lib=DIR],
        [Use PostgreSQL libraries from DIR.  Defaults to querying pg_config.])],
    AS_IF(
        [test "x$with_postgres_lib" = "xyes"],
        [with_postgres_lib=""]))

if test -n "$PG_CONFIG" && test -r "$PG_CONFIG"; then
    AS_IF(
       [test -z "$with_postgres_lib"],
       [with_postgres_lib=$($PG_CONFIG --libdir)])
    AC_MSG_NOTICE([using PostgreSQL libraries at $with_postgres_lib])
    AC_SUBST(with_postgres_lib)
    #POSTGRES_LIB="-R${with_postgres_lib}"
    AC_SUBST(POSTGRES_LIB)
elif test -n "$PKG_CONFIG" && test -r "$PKG_CONFIG"; then
    AS_IF(
       [test -z "$with_postgres_lib"],
       [with_postgres_lib=$($PKG_CONFIG libpq --libs-only-L | sed 's/^-L//')])
    AC_MSG_NOTICE([using PostgreSQL libraries at $with_postgres_lib])
    # configure insists on inserting a library search path, so give him a standard one ...
    AC_SUBST(with_postgres_lib, "")
    #POSTGRES_LIB="-R${with_postgres_lib}"
    AC_SUBST(POSTGRES_LIB)
fi


AC_CHECK_HEADER(
	[${with_postgres_include}/libpq-fe.h],
	[],
	[AC_MSG_ERROR([
Can't find libpq-fe.h in ${with_postgres_include}.  Are you sure the libpq
headers are installed correctly?  They should be in the directory returned by
"pg_config --includedir" or "pkg-config libpq --cflags".

If you do have libpq (the C-language client library for PostgreSQL) installed,
make sure you have the related development materials--mainly its header files--
as well as the library binary.  Some system distributions keep the two in
seperate packages with names like "alibrary" and "alibrary-dev", respectively.
In that case, make sure you have the latter installed as well.
])])


AC_MSG_CHECKING([for ability to compile source files using libpq])
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[[#include<${with_postgres_include}/libpq-fe.h>]],
		[[PQexec(nullptr,"")]]
	)],
	[],
	[AC_MSG_ERROR([
Could not compile a call to a basic libpq function.  There must be something
seriously wrong with the headers that "pg_config --includedir" or "pkg-config
libpq --cflags" pointed to; the contents of config.log may give you a clue
about the nature of the failure.
Source including the libpq header libpq-fe.h can be compiled, but a call to the
most basic libpq function PQexec() failed to compile successfully.  This is the
litmus test for a working libpq.
])])
AC_MSG_RESULT(yes)


if test "x${with_postgres_lib}" = "x"; then
    with_postgres_libpath=""
else
    with_postgres_libpath="-L${with_postgres_lib}"
fi
LDFLAGS="$LDFLAGS ${with_postgres_libpath}"

AC_CHECK_LIB(
	[pq],
	[PQexec],
	[],
	[AC_MSG_ERROR([
Did not find the PQexec() function in libpq.  This is the litmus test for a
working libpq installation.

A source file using the PQexec() function did compile without problems, and the
libpq library is available for linking, but for some reason a call to PQexec()
failed to link properly to the libpq library.  This may be because the libpq
library file is damaged, or in some incorrect format, or if your libpq is much
more recent than libpqxx version $PQXX_ABI, perhaps libpq has undergone a
radical ABI change.

The last parts of config.log may give you a clue as to what really went wrong,
but be warned that this is no easy reading.  Look for the last error message
occurring in the file.
])],
	${with_postgres_libpath})

# Remove redundant occurrances of -lpq
LIBS=[$(echo "$LIBS" | sed -e 's/-lpq * -lpq\>/-lpq/g')]


AC_MSG_CHECKING([that type of libpq's Oid is as expected])
AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM(
		[
			#include<${with_postgres_include}/libpq-fe.h>
			#include"${srcdir}/include/pqxx/internal/libpq-forward.hxx"
			extern void f(pqxx::oid&);
		],
		[Oid o;f(o)],
	)],
	[],
	[AC_MSG_ERROR([
The Oid typedef in libpq has changed.  Please notify the libpqxx authors of the
change!
])])
AC_MSG_RESULT(yes)


AC_PROG_MAKE_SET

AC_CONFIG_FILES([
	Makefile config/Makefile doc/Makefile doc/Doxyfile src/Makefile
	test/Makefile test/unit/Makefile tools/Makefile win32/Makefile
	include/Makefile include/pqxx/Makefile libpqxx.pc])


AC_CONFIG_COMMANDS([configitems], ["${srcdir}/tools/splitconfig" "${srcdir}"])

AC_OUTPUT