1 # Build Qt apps with the autotools (Autoconf/Automake).
4 # This file is part of AutoTroll.
6 # Copyright (C) 2006 Benoit Sigoure <benoit.sigoure@lrde.epita.fr>
7 # modified 2012 by Werner Lemberg <wl@gnu.org>
9 # AutoTroll is free software; you can redistribute it and/or modify it
10 # under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 2 of the License, or
12 # (at your option) any later version.
14 # This program is distributed in the hope that it will be useful, but
15 # WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write to the Free Software
21 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 # In addition, as a special exception, the copyright holders of
25 # AutoTroll give you unlimited permission to copy, distribute and
26 # modify the configure scripts that are the output of Autoconf when
27 # processing the macros of AutoTroll. You need not follow the terms
28 # of the GNU General Public License when using or distributing such
29 # scripts, even though portions of the text of AutoTroll appear in
30 # them. The GNU General Public License (GPL) does govern all other
31 # use of the material that constitutes AutoTroll.
33 # This special exception to the GPL applies to versions of AutoTroll
34 # released by the copyright holders of AutoTroll. Note that people
35 # who make modified versions of AutoTroll are not obligated to grant
36 # this special exception for their modified versions; it is their
37 # choice whether to do so. The GNU General Public License gives
38 # permission to release a modified version without this exception;
39 # this exception also makes it possible to release a modified version
40 # which carries forward this exception.
46 # Disclaimer: Tested with Qt 4.2 and 4.8 only. Feedback welcome.
47 # Simply invoke AT_WITH_QT in your configure.ac. AT_WITH_QT can take
48 # arguments which are documented in depth below. The default
49 # arguments are equivalent to the default .pro file generated by
52 # Invoking AT_WITH_QT will do the following:
54 # - Add option `--with-qt[=ARG]' to your configure script. Possible
55 # values for ARG are `yes' (which is the default) and `no' to
56 # enable and disable Qt support, respectively, or a path to the
57 # directory which contains the Qt binaries in case you have a
58 # non-stardard location.
59 # - Add option `--without-qt', which is equivalent to `--with-qt=no'.
60 # - If Qt support is enabled, define C preprocessor macro HAVE_QT.
61 # - Find the programs `qmake', `moc', `uic', and `rcc' and save them
62 # in the make variables $(QMAKE), $(MOC), $(UIC), and $(RCC).
63 # - Save the path to Qt binaries in $(QT_PATH).
64 # - Find the flags necessary to compile and link Qt, that is:
65 # * $(QT_DEFINES): -D's defined by qmake.
66 # * $(QT_CFLAGS): CFLAGS as defined by qmake (C?!)
67 # * $(QT_CXXFLAGS): CXXFLAGS as defined by qmake.
68 # * $(QT_INCPATH): -I's defined by qmake.
69 # * $(QT_CPPFLAGS): Same as $(QT_DEFINES) + $(QT_INCPATH).
70 # * $(QT_LFLAGS): LFLAGS defined by qmake.
71 # * $(QT_LDFLAGS): Same thing as $(QT_LFLAGS).
72 # * $(QT_LIBS): LIBS defined by qmake.
74 # You *MUST* invoke $(MOC) and/or $(UIC) by yourself where necessary.
75 # AutoTroll provides you with Makerules to ease this; here is a sample
76 # Makefile.am to use with AutoTroll which builds the code given in
77 # chapter 7 of the Qt Tutorial
78 # (http://doc.trolltech.com/4.2/tutorial-t7.html).
80 # -------------------------------------------------------------------------
81 # include $(top_srcdir)/build-aux/autotroll.mk
83 # ACLOCAL_AMFLAGS = -I build-aux
85 # bin_PROGRAMS = lcdrange
86 # lcdrange_SOURCES = $(BUILT_SOURCES) lcdrange.cpp lcdrange.h main.cpp
87 # lcdrange_CXXFLAGS = $(QT_CXXFLAGS) $(AM_CXXFLAGS)
88 # lcdrange_CPPFLAGS = $(QT_CPPFLAGS) $(AM_CPPFLAGS)
89 # lcdrange_LDFLAGS = $(QT_LDFLAGS) $(LDFLAGS)
90 # lcdrange_LDADD = $(QT_LIBS) $(LDADD)
92 # BUILT_SOURCES = lcdrange.moc.cpp
93 # -------------------------------------------------------------------------
95 # Note that your MOC, UIC, and RRC files *MUST* be listed explicitly
96 # in BUILT_SOURCES. If you name them properly (e.g. `.moc.cc',
97 # `.qrc.cc', `.ui.cc' -- of course you can use `.cpp' or `.cxx' or
98 # `.C' rather than `.cc') AutoTroll will build them automagically for
99 # you, using implicit rules defined in `autotroll.mk'.
101 m4_define([_AUTOTROLL_SERIAL],
108 m4_ifdef([AX_INSTEAD_IF],
110 [AC_DEFUN([AX_INSTEAD_IF],
114 [AC_MSG_ERROR([$2])])])])
117 m4_pattern_forbid([^AT_])
118 m4_pattern_forbid([^_AT_])
121 # AT_WITH_QT([QT_modules], [QT_config], [QT_misc], [RUN-IF-FAILED], [RUN-IF-OK])
122 # ------------------------------------------------------------------------------
123 # Enable Qt support and add an option --with-qt to the configure
126 # The QT_modules argument is optional and defines extra modules to
127 # enable or disable (it's equivalent to the QT variable in .pro
128 # files). Modules can be specified as follows:
130 # AT_WITH_QT => No argument -> No QT value.
131 # Qmake sets it to "core gui" by
133 # AT_WITH_QT([xml]) => QT += xml
134 # AT_WITH_QT([+xml]) => QT += xml
135 # AT_WITH_QT([-gui]) => QT -= gui
136 # AT_WITH_QT([xml -gui +sql svg]) => QT += xml sql svg
139 # The QT_config argument is also optional and follows the same
140 # convention as QT_modules. Instead of changing the QT variable, it
141 # changes the CONFIG variable, which is used to tweak configuration
142 # and compiler options.
144 # The last argument, QT_misc (also optional) will be copied as-is the
145 # .pro file used to guess how to compile Qt apps. You may use it to
146 # further tweak the build process of Qt apps if tweaking the QT or
147 # CONFIG variables isn't enough for you.
149 # RUN-IF-FAILED is arbitrary code to execute if Qt cannot be found or
150 # if any problem happens. If this argument is omitted, then
151 # AC_MSG_ERROR will be called. RUN-IF-OK is arbitrary code to execute
152 # if Qt was successfully found.
154 AC_DEFUN([AT_WITH_QT],
155 [AC_REQUIRE([AC_CANONICAL_HOST])
156 AC_REQUIRE([AC_CANONICAL_BUILD])
157 AC_REQUIRE([AC_PROG_CXX])
159 echo "$as_me: this is autotroll.m4[]_AUTOTROLL_SERIAL" \
162 # This is a hack to get decent flow control with `break'.
163 for _qt_ignored in once; do
166 AS_HELP_STRING([--with-qt@<:@=ARG@:>@],
167 [Qt support. ARG can be `yes' (the default), `no',
168 or a path to Qt binaries; if `yes' or empty,
169 use PATH and some default directories to find Qt binaries]))
171 if test x"$with_qt" = x"no"; then
174 AC_DEFINE([HAVE_QT],[1],
175 [Define if the Qt framework is available.])
178 if test x"$with_qt" = x"yes"; then
185 AC_ARG_VAR([QT_PATH],
186 [path to Qt binaries])
187 if test -d /usr/local/Trolltech; then
188 # Try to find the latest version.
189 tmp_qt_paths=`echo /usr/local/Trolltech/*/bin \
196 # Path to which recent MacPorts (~v1.7) install Qt4.
197 test -d /opt/local/libexec/qt4-mac/bin \
198 && tmp_qt_paths="$tmp_qt_paths:/opt/local/libexec/qt4-mac/bin"
202 [Qt Makefile generator command])
203 AC_PATH_TOOL([QMAKE],
204 [qmake qmake-qt4 qmake-qt3],
206 [$QT_DIR:$QT_PATH:$PATH:$tmp_qt_paths])
207 if test x"$QMAKE" = xmissing; then
209 [Cannot find qmake. Try --with-qt=PATH.])
213 # Find moc (Meta Object Compiler).
215 [Qt Meta Object Compiler command])
217 [moc moc-qt4 moc-qt3],
219 [$QT_PATH:$PATH:$tmp_qt_paths])
220 if test x"$MOC" = xmissing; then
222 [Cannot find moc (Meta Object Compiler). Try --with-qt=PATH.])
226 # Find uic (User Interface Compiler).
228 [Qt User Interface Compiler command])
230 [uic uic-qt4 uic-qt3 uic3],
232 [$QT_PATH:$PATH:$tmp_qt_paths])
233 if test x"$UIC" = xmissing; then
235 [Cannot find uic (User Interface Compiler). Try --with-qt=PATH.])
239 # Find rcc (Qt Resource Compiler).
241 [Qt Resource Compiler command])
245 [$QT_PATH:$PATH:$tmp_qt_paths])
246 if test x"$RCC" = xmissing; then
248 [Cannot find rcc (Qt Resource Compiler). Try --with-qt=PATH.])
251 AC_MSG_CHECKING([whether host operating system is Darwin])
257 at_qmake_args='-spec macx-g++'
260 AC_MSG_RESULT([$at_darwin])
262 # If we don't know the path to Qt, guess it from the path to
264 if test x"$QT_PATH" = x; then
265 QT_PATH=`dirname "$QMAKE"`
267 if test x"$QT_PATH" = x; then
269 [Cannot find your Qt installation. Try --with-qt=PATH.])
274 # Get ready to build a test-app with Qt.
275 if mkdir conftest.dir \
276 && cd conftest.dir; then
280 [Cannot mkdir conftest.dir or cd to that directory.])
284 cat >conftest.h <<_ASEOF
288 class Foo: public QObject
295 void setValue(int value);
297 void valueChanged(int newValue);
304 cat >conftest.cpp <<_ASEOF
306 #include "conftest.h"
311 connect(this, SIGNAL(valueChanged(int)),
312 this, SLOT(setValue(int)));
315 void Foo::setValue(int value)
327 if $QMAKE -project; then
331 [Calling $QMAKE -project failed.])
335 # Find the .pro file generated by qmake.
336 pro_file=conftest.dir.pro
337 test -f $pro_file || pro_file=`echo *.pro`
338 if test -f "$pro_file"; then
342 [Can't find the .pro file generated by Qmake.])
346 dnl Tweak the value of QT in the .pro if have been the 1st arg.
348 [_AT_TWEAK_PRO_FILE([QT], [$1])])
350 dnl Tweak the value of CONFIG in the .pro if have been given a
353 [_AT_TWEAK_PRO_FILE([CONFIG], [$2])])
356 [ # Add the extra-settings the user wants to set in the .pro.
357 echo "$3" >>"$pro_file"
360 echo "$as_me:$LINENO: Invoking $QMAKE on $pro_file" \
362 sed 's/^/| /' "$pro_file" >& AS_MESSAGE_LOG_FD
364 if $QMAKE $at_qmake_args; then
368 [Calling $QMAKE $at_qmake_args failed.])
372 # QMake has a very annoying misfeature: Sometimes it generates
373 # Makefiles where all the references to the files from the Qt
374 # installation are relative. We can't use them as-is because if
375 # we take, say, a -I../../usr/include/Qt from that Makefile, the
376 # flag is invalid as soon as we use it in another (sub)
377 # directory. So what this perl pass does is that it rewrites all
378 # relative paths to absolute paths. Another problem when
379 # building on Cygwin is that QMake mixes paths with backslashes
380 # and forward slashes and paths must be handled with extra care
381 # because of the stupid Windows drive letters.
382 echo "$as_me:$LINENO: fixing the Makefiles:" Makefile* \
388 use Cwd qw(cwd abs_path);
390 # This variable is useful on Cygwin for the following reason: Say
391 # that you are in `/' (that is, in fact you are in C:/cygwin, or
392 # something like that). If you `cd ..' then obviously you remain in
393 # `/' (that is in C:/cygwin). QMake generates paths that are
394 # relative to C:/ (or another drive letter, whatever) so the trick to
395 # get the `..' resolved properly is to prepend the absolute path of
396 # the current working directory in a Windows-style. C:/cygwin/../
397 # will properly become C:/.
403 if ($^O eq "cygwin") {
406 $d = `cygpath --mixed '$d'`;
417 $p = `cygpath --mixed '$p'`;
421 # Do not use abs_path on Cygwin: it incorrectly resolves the paths
422 # that are relative to C:/ rather than `/'.
430 # Only useful on Cygwin.
436 $p = `cygpath --mixed '$p'`;
443 foreach my $mk (@ARGV)
446 open(MK, $mk) or die("open $mk: $!");
448 my $file = join("", <MK>);
449 close(MK) or die("close $mk: $!");
450 rename $mk, $mk . "~" or die("rename $mk: $!");
451 $file =~ s{(?:\.\.[\\/])+(?:[^"'\s:]+)}{rel2abs($&)}gse;
452 $file =~ s{(?:[a-zA-Z]:[\\/])?(?:[^"\s]+\\[^"\s:]+)+}
453 {back2forward($&)}gse if $cygwin;
454 open(MK, ">", $mk) or die("open >$mk: $!");
456 close(MK) or die("close >$mk: $!");
457 print "$mk: updated $r2a relative paths and $b2f backslash-style paths\n";
465 perl >& AS_MESSAGE_LOG_FD -w fixmk.pl Makefile* \
466 || AC_MSG_WARN([failed to fix the Makefiles generated by $QMAKE])
469 # Try to compile a simple Qt app.
470 AC_CACHE_CHECK([whether we can build a simple Qt application],
475 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
476 at_cv_qt_build='ok, looks like Qt 4'
478 echo "$as_me:$LINENO: Build failed, trying to #include <qobject.h> instead" \
480 sed 's/<QObject>/<qobject.h>/' conftest.h > tmp.h \
481 && mv tmp.h conftest.h
482 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
483 at_cv_qt_build='ok, looks like Qt 3'
485 # Sometimes (such as on Debian) build will fail because Qt
486 # hasn't been installed in debug mode and qmake tries (by
487 # default) to build apps in debug mode => Try again in
489 echo "$as_me:$LINENO: Build failed, trying to enforce release mode" \
492 _AT_TWEAK_PRO_FILE([CONFIG], [+release])
494 sed 's/<qobject.h>/<QObject>/' conftest.h > tmp.h \
495 && mv tmp.h conftest.h
496 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
497 at_cv_qt_build='ok, looks like Qt 4, release mode forced'
499 echo "$as_me:$LINENO: Build failed, trying to #include <qobject.h> instead" \
501 sed 's/<QObject>/<qobject.h>/' conftest.h > tmp.h \
502 && mv tmp.h conftest.h
503 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
504 at_cv_qt_build='ok, looks like Qt 3, release mode forced'
507 echo "$as_me:$LINENO: failed program was:" \
509 sed 's/^/| /' conftest.h >& AS_MESSAGE_LOG_FD
510 echo "$as_me:$LINENO: failed program was:" \
512 sed 's/^/| /' conftest.cpp >& AS_MESSAGE_LOG_FD
513 fi # if make with Qt3-style #include and release mode forced.
514 fi # if make with Qt4-style #include and release mode forced.
515 fi # if make with Qt3-style #include.
516 fi # if make with Qt4-style #include.
517 ])dnl end: AC_CACHE_CHECK(at_cv_qt_build)
519 if test x"$at_cv_qt_build" = xko; then
521 [Cannot build a test Qt program])
526 QT_VERSION_MAJOR=`echo "$at_cv_qt_build" | sed 's/[[^0-9]]*//g'`
527 AC_SUBST([QT_VERSION_MAJOR])
529 # This sed filter is applied after an expression of the form:
530 # /^FOO.*=/!d; it starts by removing the beginning of the line,
531 # removing references to SUBLIBS, removing unnecessary
532 # whitespaces at the beginning, and prefixes all variable uses by
537 s/\$(\(@<:@A-Z_@:>@@<:@A-Z_@:>@*\))/$(QT_\1)/g'
539 # Find the Makefile (qmake happens to generate a fake Makefile
540 # which invokes a Makefile.Debug or Makefile.Release). If we
541 # have both, we'll pick the Makefile.Release. The reason is that
542 # that release uses -Os and debug -g. We can override -Os by
543 # passing another -O but we usually don't override -g.
544 if test -f Makefile.Release; then
545 at_mfile='Makefile.Release'
549 if test -f $at_mfile; then
553 [Cannot find the Makefile generated by qmake.])
558 # Find the DEFINES of Qt (should have been named CPPFLAGS).
559 AC_CACHE_CHECK([for the DEFINES to use with Qt],
560 [at_cv_env_QT_DEFINES],
561 [at_cv_env_QT_DEFINES=`sed "/^DEFINES@<:@^A-Z=@:>@*=/!d;
562 $qt_sed_filter" $at_mfile`])
563 AC_SUBST([QT_DEFINES],
564 [$at_cv_env_QT_DEFINES])
566 # Find the CFLAGS of Qt. (We can use Qt in C?!)
567 AC_CACHE_CHECK([for the CFLAGS to use with Qt],
568 [at_cv_env_QT_CFLAGS],
569 [at_cv_env_QT_CFLAGS=`sed "/^CFLAGS@<:@^A-Z=@:>@*=/!d;
570 $qt_sed_filter" $at_mfile`])
571 AC_SUBST([QT_CFLAGS],
572 [$at_cv_env_QT_CFLAGS])
574 # Find the CXXFLAGS of Qt.
575 AC_CACHE_CHECK([for the CXXFLAGS to use with Qt],
576 [at_cv_env_QT_CXXFLAGS],
577 [at_cv_env_QT_CXXFLAGS=`sed "/^CXXFLAGS@<:@^A-Z=@:>@*=/!d;
578 $qt_sed_filter" $at_mfile`])
579 AC_SUBST([QT_CXXFLAGS],
580 [$at_cv_env_QT_CXXFLAGS])
582 # Find the INCPATH of Qt.
583 AC_CACHE_CHECK([for the INCPATH to use with Qt],
584 [at_cv_env_QT_INCPATH],
585 [at_cv_env_QT_INCPATH=`sed "/^INCPATH@<:@^A-Z=@:>@*=/!d;
586 $qt_sed_filter" $at_mfile`])
587 AC_SUBST([QT_INCPATH],
588 [$at_cv_env_QT_INCPATH])
590 AC_SUBST([QT_CPPFLAGS],
591 ["$at_cv_env_QT_DEFINES $at_cv_env_QT_INCPATH"])
593 # Find the LFLAGS of Qt (Should have been named LDFLAGS).
594 AC_CACHE_CHECK([for the LDFLAGS to use with Qt],
595 [at_cv_env_QT_LDFLAGS],
596 [at_cv_env_QT_LDFLAGS=`sed "/^LFLAGS@<:@^A-Z=@:>@*=/!d;
597 $qt_sed_filter" $at_mfile`])
598 AC_SUBST([QT_LFLAGS],
599 [$at_cv_env_QT_LDFLAGS])
600 AC_SUBST([QT_LDFLAGS],
601 [$at_cv_env_QT_LDFLAGS])
603 # Find the LIBS of Qt.
604 AC_CACHE_CHECK([for the LIBS to use with Qt],
606 [at_cv_env_QT_LIBS=`sed "/^LIBS@<:@^A-Z@:>@*=/!d;
607 $qt_sed_filter" $at_mfile`
608 if test x$at_darwin = xyes; then
609 # Fix QT_LIBS: as of today Libtool (GNU Libtool 1.5.23a)
610 # doesn't handle -F properly. The "bug" has been fixed on 22
611 # October 2006 by Peter O'Gorman but we provide backward
612 # compatibility here.
613 at_cv_env_QT_LIBS=`echo "$at_cv_env_QT_LIBS" \
614 | sed 's/^-F/-Wl,-F/;
618 [$at_cv_env_QT_LIBS])
620 cd .. && rm -rf conftest.dir
625 done # end hack (useless FOR to be able to use break)
629 # AT_REQUIRE_QT_VERSION(QT_version, [RUN-IF-FAILED], [RUN-IF-OK])
630 # ---------------------------------------------------------------
631 # Check (using qmake) that Qt's version "matches" QT_version. Must be
632 # run *after* AT_WITH_QT. Requires autoconf 2.60.
634 # This macro is ignored if Qt support has been disabled (using
635 # `--with-qt=no' or `--without-qt').
637 # RUN-IF-FAILED is arbitrary code to execute if Qt cannot be found or
638 # if any problem happens. If this argument is omitted, then
639 # AC_MSG_ERROR will be called. RUN-IF-OK is arbitrary code to execute
640 # if Qt was successfully found.
642 AC_DEFUN([AT_REQUIRE_QT_VERSION],
645 # this is a hack to get decent flow control with `break'
646 for _qt_ignored in once; do
648 if test x"$with_qt" = x"no"; then
652 if test x"$QMAKE" = x; then
654 [\$QMAKE is empty. Did you invoke AT@&t@_WITH_QT before AT@&t@_REQUIRE_QT_VERSION?])
658 AC_CACHE_CHECK([for Qt's version],
660 [echo "$as_me:$LINENO: Running $QMAKE --version:" \
662 $QMAKE --version >& AS_MESSAGE_LOG_FD 2>&1
663 qmake_version_sed=['/^.*\([0-9]\.[0-9]\.[0-9]\).*$/!d;s//\1/']
664 at_cv_QT_VERSION=`$QMAKE --version 2>&1 \
665 | sed "$qmake_version_sed"`])
666 if test x"$at_cv_QT_VERSION" = x; then
668 [Cannot detect Qt's version.])
671 AC_SUBST([QT_VERSION],
673 AS_VERSION_COMPARE([$QT_VERSION], [$1],
675 [This package requires Qt $1 or above.])
681 done # end hack (useless for to be able to use break)
685 # _AT_TWEAK_PRO_FILE(QT_VAR, VALUE)
686 # ---------------------------------
687 # @internal. Tweak the variable QT_VAR in the .pro file. VALUE is an
688 # IFS-separated list of value, and each value is rewritten as follows:
690 # +value => QT_VAR += value
691 # -value => QT_VAR -= value
692 # value => QT_VAR += value
694 AC_DEFUN([_AT_TWEAK_PRO_FILE],
695 [ # Tweak the value of $1 in the .pro file for $2.
698 at_mod=`echo "$at_mod" | sed 's/^-//; tough
708 echo "$qt_conf" | sed 1d >>"$pro_file"