gpgme/m4/qt6.m4
Ingo Klöcker f7a4671428
build,qt: Always compile the Qt 6 test application with -fpic
* m4/qt6.m4: Do not add -fpic to GPGME_QT6_CFLAGS. Add -fpic to CPPFLAGS
used for build test of simple Qt 6 application.
--

The pkgconfig files of Qt6Core do not contain the qt_config variable,
so that we cannot easily check whether Qt6 was compiled with pic. For
simplicity we always compile the test application with -fpic to avoid
a build failure if Qt6 was actually compiled with pic.
For the actual build of QGpgME libtool automatically uses -fPIC, so that
we don't have to add it to the GPGME_QT6_CFLAGS.
2022-10-14 09:31:18 +02:00

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dnl qt6.m4
dnl Copyright (C) 2016 Intevation GmbH
dnl
dnl This file is part of gpgme and is provided under the same license as gpgme
dnl Autoconf macro to find Qt6
dnl
dnl sets GPGME_QT6_LIBS and GPGME_QT6_CFLAGS
dnl
dnl if QT6 was found have_qt6_libs is set to yes
AC_DEFUN([FIND_QT6],
[
have_qt6_libs="no";
PKG_CHECK_MODULES(GPGME_QT6,
Qt6Core >= 6.4.0,
[have_qt6_libs="yes"],
[have_qt6_libs="no"])
PKG_CHECK_MODULES(GPGME_QT6TEST,
Qt6Test >= 6.4.0,
[have_qt6test_libs="yes"],
[have_qt6test_libs="no"])
if test "$have_qt6_libs" = "yes"; then
# Qt6 moved moc to libexec
qt6libexecdir=$($PKG_CONFIG --variable=libexecdir 'Qt6Core >= 6.4.0')
AC_PATH_TOOL(MOC, moc, [], [$qt6libexecdir])
AC_MSG_CHECKING([moc version])
mocversion=`$MOC -v 2>&1`
mocversiongrep=`echo $mocversion | grep -E "Qt 6|moc 6"`
if test x"$mocversiongrep" != x"$mocversion"; then
AC_MSG_RESULT([no])
# moc was not the qt6 one, try with moc-qt6
AC_CHECK_TOOL(MOC2, moc-qt6)
mocversion=`$MOC2 -v 2>&1`
mocversiongrep=`echo $mocversion | grep -E "Qt 6|moc-qt6 6|moc 6"`
if test x"$mocversiongrep" != x"$mocversion"; then
AC_CHECK_TOOL(QTCHOOSER, qtchooser)
qt6tooldir=`QT_SELECT=qt6 qtchooser -print-env | grep QTTOOLDIR | cut -d '=' -f 2 | cut -d \" -f 2`
mocversion=`$qt6tooldir/moc -v 2>&1`
mocversiongrep=`echo $mocversion | grep -E "Qt 6|moc 6"`
if test x"$mocversiongrep" != x"$mocversion"; then
# no valid moc found
have_qt6_libs="no";
else
MOC=$qt6tooldir/moc
fi
else
MOC=$MOC2
fi
fi
AC_MSG_RESULT([$mocversion])
dnl Check that a binary can actually be build with this qt.
dnl pkg-config may be set up in a way that it looks also for libraries
dnl of the build system and not only for the host system. In that case
dnl we check here that we can actually compile / link a qt application
dnl for host.
OLDCPPFLAGS=$CPPFLAGS
CPPFLAGS=$GPGME_QT6_CFLAGS
if ! test "$have_w32_system" = yes; then
CPPFLAGS="$CPPFLAGS -fpic"
fi
OLDLIBS=$LIBS
LIBS=$GPGME_QT6_LIBS
AC_LANG_PUSH(C++)
AC_MSG_CHECKING([whether a simple qt program can be built])
AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <QCoreApplication>
int main (int argc, char **argv) {
QCoreApplication app(argc, argv);
app.exec();
}])], [have_qt6_libs='yes'], [have_qt6_libs='no'])
AC_MSG_RESULT([$have_qt6_libs])
AC_LANG_POP()
CPPFLAGS=$OLDCPPFLAGS
LIBS=$OLDLIBS
fi
])