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 2012-2013 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 # AX_PATH_TOOLS(VARIABLE, PROGS-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], [PATH])
118 # -------------------------------------------------------------------------
119 AC_DEFUN([AX_PATH_TOOLS],
120 [for ax_tool in $2; do
121 AC_PATH_TOOL([$1], [$ax_tool], , [$4])
122 test -n "$$1" && break
124 m4_ifval([$3], [test -n "$$1" || $1="$3"])
128 m4_pattern_forbid([^AT_])
129 m4_pattern_forbid([^_AT_])
132 # AT_WITH_QT([QT_modules], [QT_config], [QT_misc], [RUN-IF-FAILED], [RUN-IF-OK])
133 # ------------------------------------------------------------------------------
134 # Enable Qt support and add an option --with-qt to the configure
137 # The QT_modules argument is optional and defines extra modules to
138 # enable or disable (it's equivalent to the QT variable in .pro
139 # files). Modules can be specified as follows:
141 # AT_WITH_QT => No argument -> No QT value.
142 # Qmake sets it to "core gui" by
144 # AT_WITH_QT([xml]) => QT += xml
145 # AT_WITH_QT([+xml]) => QT += xml
146 # AT_WITH_QT([-gui]) => QT -= gui
147 # AT_WITH_QT([xml -gui +sql svg]) => QT += xml sql svg
150 # The QT_config argument is also optional and follows the same
151 # convention as QT_modules. Instead of changing the QT variable, it
152 # changes the CONFIG variable, which is used to tweak configuration
153 # and compiler options.
155 # The last argument, QT_misc (also optional) will be copied as-is the
156 # .pro file used to guess how to compile Qt apps. You may use it to
157 # further tweak the build process of Qt apps if tweaking the QT or
158 # CONFIG variables isn't enough for you.
160 # RUN-IF-FAILED is arbitrary code to execute if Qt cannot be found or
161 # if any problem happens. If this argument is omitted, then
162 # AC_MSG_ERROR will be called. RUN-IF-OK is arbitrary code to execute
163 # if Qt was successfully found.
165 AC_DEFUN([AT_WITH_QT],
166 [AC_REQUIRE([AC_CANONICAL_HOST])
167 AC_REQUIRE([AC_CANONICAL_BUILD])
168 AC_REQUIRE([AC_PROG_CXX])
170 echo "$as_me: this is autotroll.m4[]_AUTOTROLL_SERIAL" \
173 # This is a hack to get decent flow control with `break'.
174 for _qt_ignored in once; do
177 AS_HELP_STRING([--with-qt@<:@=ARG@:>@],
178 [Qt support. ARG can be `yes' (the default), `no',
179 or a path to Qt binaries; if `yes' or empty,
180 use PATH and some default directories to find Qt binaries]))
182 if test x"$with_qt" = x"no"; then
185 AC_DEFINE([HAVE_QT],[1],
186 [Define if the Qt framework is available.])
189 if test x"$with_qt" = x"yes"; then
196 AC_ARG_VAR([QT_PATH],
197 [path to Qt binaries])
198 if test -d /usr/local/Trolltech; then
199 # Try to find the latest version.
200 tmp_qt_paths=`echo /usr/local/Trolltech/*/bin \
207 # Path to which recent MacPorts (~v1.7) install Qt4.
208 test -d /opt/local/libexec/qt4-mac/bin \
209 && tmp_qt_paths="$tmp_qt_paths:/opt/local/libexec/qt4-mac/bin"
213 [Qt Makefile generator command])
214 AX_PATH_TOOLS([QMAKE],
215 [qmake qmake-qt4 qmake-qt3],
217 [$QT_DIR:$QT_PATH:$PATH:$tmp_qt_paths])
218 if test x"$QMAKE" = xmissing; then
220 [Cannot find qmake. Try --with-qt=PATH.])
224 # Find moc (Meta Object Compiler).
226 [Qt Meta Object Compiler command])
228 [moc moc-qt4 moc-qt3],
230 [$QT_PATH:$PATH:$tmp_qt_paths])
231 if test x"$MOC" = xmissing; then
233 [Cannot find moc (Meta Object Compiler). Try --with-qt=PATH.])
237 # Find uic (User Interface Compiler).
239 [Qt User Interface Compiler command])
241 [uic uic-qt4 uic-qt3 uic3],
243 [$QT_PATH:$PATH:$tmp_qt_paths])
244 if test x"$UIC" = xmissing; then
246 [Cannot find uic (User Interface Compiler). Try --with-qt=PATH.])
250 # Find rcc (Qt Resource Compiler).
252 [Qt Resource Compiler command])
256 [$QT_PATH:$PATH:$tmp_qt_paths])
257 if test x"$RCC" = xmissing; then
259 [Cannot find rcc (Qt Resource Compiler). Try --with-qt=PATH.])
262 AC_MSG_CHECKING([whether host operating system is Darwin])
268 at_qmake_args='-spec macx-g++'
271 AC_MSG_RESULT([$at_darwin])
273 # If we don't know the path to Qt, guess it from the path to
275 if test x"$QT_PATH" = x; then
276 QT_PATH=`dirname "$QMAKE"`
278 if test x"$QT_PATH" = x; then
280 [Cannot find your Qt installation. Try --with-qt=PATH.])
285 # Get ready to build a test-app with Qt.
286 if mkdir conftest.dir \
287 && cd conftest.dir; then
291 [Cannot mkdir conftest.dir or cd to that directory.])
295 cat >conftest.h <<_ASEOF
299 class Foo: public QObject
306 void setValue(int value);
308 void valueChanged(int newValue);
315 cat >conftest.cpp <<_ASEOF
317 #include "conftest.h"
322 connect(this, SIGNAL(valueChanged(int)),
323 this, SLOT(setValue(int)));
326 void Foo::setValue(int value)
338 if $QMAKE -project; then
342 [Calling $QMAKE -project failed.])
346 # Find the .pro file generated by qmake.
347 pro_file=conftest.dir.pro
348 test -f $pro_file || pro_file=`echo *.pro`
349 if test -f "$pro_file"; then
353 [Can't find the .pro file generated by Qmake.])
357 dnl Tweak the value of QT in the .pro if have been the 1st arg.
359 [_AT_TWEAK_PRO_FILE([QT], [$1])])
361 dnl Tweak the value of CONFIG in the .pro if have been given a
364 [_AT_TWEAK_PRO_FILE([CONFIG], [$2])])
367 [ # Add the extra-settings the user wants to set in the .pro.
368 echo "$3" >>"$pro_file"
371 echo "$as_me:$LINENO: Invoking $QMAKE on $pro_file" \
373 sed 's/^/| /' "$pro_file" >& AS_MESSAGE_LOG_FD
375 if $QMAKE $at_qmake_args; then
379 [Calling $QMAKE $at_qmake_args failed.])
383 # QMake has a very annoying misfeature: Sometimes it generates
384 # Makefiles where all the references to the files from the Qt
385 # installation are relative. We can't use them as-is because if
386 # we take, say, a -I../../usr/include/Qt from that Makefile, the
387 # flag is invalid as soon as we use it in another (sub)
388 # directory. So what this perl pass does is that it rewrites all
389 # relative paths to absolute paths. Another problem when
390 # building on Cygwin is that QMake mixes paths with backslashes
391 # and forward slashes and paths must be handled with extra care
392 # because of the stupid Windows drive letters.
393 echo "$as_me:$LINENO: fixing the Makefiles:" Makefile* \
399 use Cwd qw(cwd abs_path);
401 # This variable is useful on Cygwin for the following reason: Say
402 # that you are in `/' (that is, in fact you are in C:/cygwin, or
403 # something like that). If you `cd ..' then obviously you remain in
404 # `/' (that is in C:/cygwin). QMake generates paths that are
405 # relative to C:/ (or another drive letter, whatever) so the trick to
406 # get the `..' resolved properly is to prepend the absolute path of
407 # the current working directory in a Windows-style. C:/cygwin/../
408 # will properly become C:/.
414 if ($^O eq "cygwin") {
417 $d = `cygpath --mixed '$d'`;
428 $p = `cygpath --mixed '$p'`;
432 # Do not use abs_path on Cygwin: it incorrectly resolves the paths
433 # that are relative to C:/ rather than `/'.
441 # Only useful on Cygwin.
447 $p = `cygpath --mixed '$p'`;
454 foreach my $mk (@ARGV)
457 open(MK, $mk) or die("open $mk: $!");
459 my $file = join("", <MK>);
460 close(MK) or die("close $mk: $!");
461 rename $mk, $mk . "~" or die("rename $mk: $!");
462 $file =~ s{(?:\.\.[\\/])+(?:[^"'\s:]+)}{rel2abs($&)}gse;
463 $file =~ s{(?:[a-zA-Z]:[\\/])?(?:[^"\s]+\\[^"\s:]+)+}
464 {back2forward($&)}gse if $cygwin;
465 open(MK, ">", $mk) or die("open >$mk: $!");
467 close(MK) or die("close >$mk: $!");
468 print "$mk: updated $r2a relative paths and $b2f backslash-style paths\n";
476 perl >& AS_MESSAGE_LOG_FD -w fixmk.pl Makefile* \
477 || AC_MSG_WARN([failed to fix the Makefiles generated by $QMAKE])
480 # Try to compile a simple Qt app.
481 AC_CACHE_CHECK([whether we can build a simple Qt application],
486 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
487 at_cv_qt_build='ok, looks like Qt 4'
489 echo "$as_me:$LINENO: Build failed, trying to #include <qobject.h> instead" \
491 sed 's/<QObject>/<qobject.h>/' conftest.h > tmp.h \
492 && mv tmp.h conftest.h
493 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
494 at_cv_qt_build='ok, looks like Qt 3'
496 # Sometimes (such as on Debian) build will fail because Qt
497 # hasn't been installed in debug mode and qmake tries (by
498 # default) to build apps in debug mode => Try again in
500 echo "$as_me:$LINENO: Build failed, trying to enforce release mode" \
503 _AT_TWEAK_PRO_FILE([CONFIG], [+release])
505 sed 's/<qobject.h>/<QObject>/' conftest.h > tmp.h \
506 && mv tmp.h conftest.h
507 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
508 at_cv_qt_build='ok, looks like Qt 4, release mode forced'
510 echo "$as_me:$LINENO: Build failed, trying to #include <qobject.h> instead" \
512 sed 's/<QObject>/<qobject.h>/' conftest.h > tmp.h \
513 && mv tmp.h conftest.h
514 if $MAKE >& AS_MESSAGE_LOG_FD 2>&1; then
515 at_cv_qt_build='ok, looks like Qt 3, release mode forced'
518 echo "$as_me:$LINENO: failed program was:" \
520 sed 's/^/| /' conftest.h >& AS_MESSAGE_LOG_FD
521 echo "$as_me:$LINENO: failed program was:" \
523 sed 's/^/| /' conftest.cpp >& AS_MESSAGE_LOG_FD
524 fi # if make with Qt3-style #include and release mode forced.
525 fi # if make with Qt4-style #include and release mode forced.
526 fi # if make with Qt3-style #include.
527 fi # if make with Qt4-style #include.
528 ])dnl end: AC_CACHE_CHECK(at_cv_qt_build)
530 if test x"$at_cv_qt_build" = xko; then
532 [Cannot build a test Qt program])
537 QT_VERSION_MAJOR=`echo "$at_cv_qt_build" | sed 's/[[^0-9]]*//g'`
538 AC_SUBST([QT_VERSION_MAJOR])
540 # This sed filter is applied after an expression of the form:
541 # /^FOO.*=/!d; it starts by removing the beginning of the line,
542 # removing references to SUBLIBS, removing unnecessary
543 # whitespaces at the beginning, and prefixes all variable uses by
548 s/\$(\(@<:@A-Z_@:>@@<:@A-Z_@:>@*\))/$(QT_\1)/g'
550 # Find the Makefile (qmake happens to generate a fake Makefile
551 # which invokes a Makefile.Debug or Makefile.Release). If we
552 # have both, we'll pick the Makefile.Release. The reason is that
553 # that release uses -Os and debug -g. We can override -Os by
554 # passing another -O but we usually don't override -g.
555 if test -f Makefile.Release; then
556 at_mfile='Makefile.Release'
560 if test -f $at_mfile; then
564 [Cannot find the Makefile generated by qmake.])
569 # Find the DEFINES of Qt (should have been named CPPFLAGS).
570 AC_CACHE_CHECK([for the DEFINES to use with Qt],
571 [at_cv_env_QT_DEFINES],
572 [at_cv_env_QT_DEFINES=`sed "/^DEFINES@<:@^A-Z=@:>@*=/!d;
573 $qt_sed_filter" $at_mfile`])
574 AC_SUBST([QT_DEFINES],
575 [$at_cv_env_QT_DEFINES])
577 # Find the CFLAGS of Qt. (We can use Qt in C?!)
578 AC_CACHE_CHECK([for the CFLAGS to use with Qt],
579 [at_cv_env_QT_CFLAGS],
580 [at_cv_env_QT_CFLAGS=`sed "/^CFLAGS@<:@^A-Z=@:>@*=/!d;
581 $qt_sed_filter" $at_mfile`])
582 AC_SUBST([QT_CFLAGS],
583 [$at_cv_env_QT_CFLAGS])
585 # Find the CXXFLAGS of Qt.
586 AC_CACHE_CHECK([for the CXXFLAGS to use with Qt],
587 [at_cv_env_QT_CXXFLAGS],
588 [at_cv_env_QT_CXXFLAGS=`sed "/^CXXFLAGS@<:@^A-Z=@:>@*=/!d;
589 $qt_sed_filter" $at_mfile`])
590 AC_SUBST([QT_CXXFLAGS],
591 [$at_cv_env_QT_CXXFLAGS])
593 # Find the INCPATH of Qt.
594 AC_CACHE_CHECK([for the INCPATH to use with Qt],
595 [at_cv_env_QT_INCPATH],
596 [at_cv_env_QT_INCPATH=`sed "/^INCPATH@<:@^A-Z=@:>@*=/!d;
597 $qt_sed_filter" $at_mfile`])
598 AC_SUBST([QT_INCPATH],
599 [$at_cv_env_QT_INCPATH])
601 AC_SUBST([QT_CPPFLAGS],
602 ["$at_cv_env_QT_DEFINES $at_cv_env_QT_INCPATH"])
604 # Find the LFLAGS of Qt (Should have been named LDFLAGS).
605 AC_CACHE_CHECK([for the LDFLAGS to use with Qt],
606 [at_cv_env_QT_LDFLAGS],
607 [at_cv_env_QT_LDFLAGS=`sed "/^LFLAGS@<:@^A-Z=@:>@*=/!d;
608 $qt_sed_filter" $at_mfile`])
609 AC_SUBST([QT_LFLAGS],
610 [$at_cv_env_QT_LDFLAGS])
611 AC_SUBST([QT_LDFLAGS],
612 [$at_cv_env_QT_LDFLAGS])
614 # Find the LIBS of Qt.
615 AC_CACHE_CHECK([for the LIBS to use with Qt],
617 [at_cv_env_QT_LIBS=`sed "/^LIBS@<:@^A-Z@:>@*=/!d;
618 $qt_sed_filter" $at_mfile`
619 if test x$at_darwin = xyes; then
620 # Fix QT_LIBS: as of today Libtool (GNU Libtool 1.5.23a)
621 # doesn't handle -F properly. The "bug" has been fixed on 22
622 # October 2006 by Peter O'Gorman but we provide backward
623 # compatibility here.
624 at_cv_env_QT_LIBS=`echo "$at_cv_env_QT_LIBS" \
625 | sed 's/^-F/-Wl,-F/;
629 [$at_cv_env_QT_LIBS])
631 cd .. && rm -rf conftest.dir
636 done # end hack (useless FOR to be able to use break)
640 # AT_REQUIRE_QT_VERSION(QT_version, [RUN-IF-FAILED], [RUN-IF-OK])
641 # ---------------------------------------------------------------
642 # Check (using qmake) that Qt's version "matches" QT_version. Must be
643 # run *after* AT_WITH_QT. Requires autoconf 2.60.
645 # This macro is ignored if Qt support has been disabled (using
646 # `--with-qt=no' or `--without-qt').
648 # RUN-IF-FAILED is arbitrary code to execute if Qt cannot be found or
649 # if any problem happens. If this argument is omitted, then
650 # AC_MSG_ERROR will be called. RUN-IF-OK is arbitrary code to execute
651 # if Qt was successfully found.
653 AC_DEFUN([AT_REQUIRE_QT_VERSION],
656 # this is a hack to get decent flow control with `break'
657 for _qt_ignored in once; do
659 if test x"$with_qt" = x"no"; then
663 if test x"$QMAKE" = x; then
665 [\$QMAKE is empty. Did you invoke AT@&t@_WITH_QT before AT@&t@_REQUIRE_QT_VERSION?])
669 AC_CACHE_CHECK([for Qt's version],
671 [echo "$as_me:$LINENO: Running $QMAKE --version:" \
673 $QMAKE --version >& AS_MESSAGE_LOG_FD 2>&1
674 qmake_version_sed=['/^.*\([0-9]\.[0-9]\.[0-9]\).*$/!d;s//\1/']
675 at_cv_QT_VERSION=`$QMAKE --version 2>&1 \
676 | sed "$qmake_version_sed"`])
677 if test x"$at_cv_QT_VERSION" = x; then
679 [Cannot detect Qt's version.])
682 AC_SUBST([QT_VERSION],
684 AS_VERSION_COMPARE([$QT_VERSION], [$1],
686 [This package requires Qt $1 or above.])
692 done # end hack (useless for to be able to use break)
696 # _AT_TWEAK_PRO_FILE(QT_VAR, VALUE)
697 # ---------------------------------
698 # @internal. Tweak the variable QT_VAR in the .pro file. VALUE is an
699 # IFS-separated list of value, and each value is rewritten as follows:
701 # +value => QT_VAR += value
702 # -value => QT_VAR -= value
703 # value => QT_VAR += value
705 AC_DEFUN([_AT_TWEAK_PRO_FILE],
706 [ # Tweak the value of $1 in the .pro file for $2.
709 at_mod=`echo "$at_mod" | sed 's/^-//; tough
719 echo "$qt_conf" | sed 1d >>"$pro_file"