ed07031315
* m4/qt.m4 (FIND_QT): Check if a qt application can be compiled and linked. -- In case gpgme is cross compiled pkg-config may pick up qt for the build system and not for the host system. To avoid that we check that we can compile a qt program for host.
79 lines
2.6 KiB
Plaintext
79 lines
2.6 KiB
Plaintext
dnl qt.m4
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dnl Copyright (C) 2016 Intevation GmbH
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dnl
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dnl This file is part of gpgme and is provided under the same license as gpgme
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dnl Autoconf macro to find either Qt4 or Qt5
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dnl
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dnl sets GPGME_QT_LIBS and GPGME_QT_CFLAGS
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dnl
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dnl if QT5 was found have_qt5_libs is set to yes
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AC_DEFUN([FIND_QT],
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[
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have_qt5_libs="no";
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PKG_CHECK_MODULES(GPGME_QT,
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Qt5Core >= 5.0.0,
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[have_qt5_libs="yes"],
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[have_qt5_libs="no"])
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PKG_CHECK_MODULES(GPGME_QTTEST,
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Qt5Test >= 5.0.0,
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[have_qt5test_libs="yes"],
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[have_qt5test_libs="no"])
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if "$PKG_CONFIG" --variable qt_config Qt5Core | grep -q "reduce_relocations"; then
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GPGME_QT_CFLAGS="$GPGME_QT_CFLAGS -fpic"
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fi
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if test "$have_qt5_libs" = "yes"; then
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AC_CHECK_TOOL(MOC, moc)
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AC_MSG_CHECKING([moc version])
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mocversion=`$MOC -v 2>&1`
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mocversiongrep=`echo $mocversion | grep "Qt 5\|moc 5"`
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if test x"$mocversiongrep" != x"$mocversion"; then
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AC_MSG_RESULT([no])
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# moc was not the qt5 one, try with moc-qt5
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AC_CHECK_TOOL(MOC2, moc-qt5)
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mocversion=`$MOC2 -v 2>&1`
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mocversiongrep=`echo $mocversion | grep "Qt 5\|moc-qt5 5\|moc 5"`
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if test x"$mocversiongrep" != x"$mocversion"; then
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AC_CHECK_TOOL(QTCHOOSER, qtchooser)
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qt5tooldir=`QT_SELECT=qt5 qtchooser -print-env | grep QTTOOLDIR | cut -d '=' -f 2 | cut -d \" -f 2`
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mocversion=`$qt5tooldir/moc -v 2>&1`
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mocversiongrep=`echo $mocversion | grep "Qt 5\|moc 5"`
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if test x"$mocversiongrep" != x"$mocversion"; then
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# no valid moc found
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have_qt5_libs="no";
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else
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MOC=$qt5tooldir/moc
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fi
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else
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MOC=$MOC2
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fi
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fi
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AC_MSG_RESULT([$mocversion])
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dnl Check that a binary can actually be build with this qt.
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dnl pkg-config may be set up in a way that it looks also for libaries
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dnl of the build system and not only for the host system. In that case
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dnl we check here that we can actually compile / link a qt application
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dnl for host.
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OLDCPPFLAGS=$CPPFLAGS
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CPPFLAGS=$GPGME_QT_CFLAGS
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OLDLDFLAGS=$LDFLAGS
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LDFLAGS=$GPGME_QT_LIBS
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AC_LANG_PUSH(C++)
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AC_MSG_CHECKING([whether a simple qt program can be built])
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AC_LINK_IFELSE([AC_LANG_SOURCE([
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#include <QCoreApplication>
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int main (int argc, char **argv) {
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QCoreApplication app(argc, argv);
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app.exec();
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}])], [have_qt5_libs='yes'], [have_qt5_libs='no'])
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AC_MSG_RESULT([$have_qt5_libs])
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AC_LANG_POP()
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CPPFLAGS=$OLDCPPFLAGS
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LDFLAGS=$OLDLDFLAGS
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fi
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])
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