New build-helper: qmake

Manual.md

@@ -944,11 +944,17 @@ additional paths to be searched when linking target binaries to be introspected.
 `qemu-<target_arch>-static` when running the target binary. You can for example specify
 `GIR_EXTRA_OPTIONS="-strace"` to see a trace of what happens when running that binary.
 
-- 'qemu' sets additional variables for the `cmake` and `meson` build styles to allow
+- `qemu` sets additional variables for the `cmake` and `meson` build styles to allow
 executing cross-compiled binaries inside qemu.
 It sets `CMAKE_CROSSCOMPILING_EMULATOR` for cmake and `exe_wrapper` for meson
 to `qemu-<target_arch>-static` and `QEMU_LD_PREFIX` to `XBPS_CROSS_BASE`
 
+- `qmake` creates the `qt.conf` configuration file (cf. `qmake` `build_style`)
+needed for cross builds and a qmake-wrapper to make `qmake` use this configuration.
+This aims to fix cross-builds for when the build-style is mixed: e.g. when in a
+`gnu-configure` style the configure script calls `qmake` or a `Makefile` in
+`gnu-makefile` style, respectively.
+
 <a id="functions"></a>
 ### Functions
 

common/build-helper/qmake.sh

@@ -0,0 +1,48 @@
+# This build-helper sets up qmake’s cross environment
+# in cases the build-style is mixed,
+# e.g. when in a gnu-configure style the configure
+# script calls qmake or a makefile in a gnu-makefile style,
+# respectively.
+
+if [ "$CROSS_BUILD" ]; then
+	cat > "${XBPS_WRAPPERDIR}/qt.conf" <<_EOF
+[Paths]
+Sysroot=${XBPS_CROSS_BASE}
+Prefix=${XBPS_CROSS_BASE}/usr
+ArchData=${XBPS_CROSS_BASE}/usr/lib/qt5
+Data=${XBPS_CROSS_BASE}/usr/share/qt5
+Documentation=${XBPS_CROSS_BASE}/usr/share/doc/qt5
+Headers=${XBPS_CROSS_BASE}/usr/include/qt5
+Libraries=${XBPS_CROSS_BASE}/usr/lib
+LibraryExecutables=/usr/lib/qt5/libexec
+Binaries=/usr/lib/qt5/bin
+Tests=${XBPS_CROSS_BASE}/usr/tests
+Plugins=/usr/lib/qt5/plugins
+Imports=${XBPS_CROSS_BASE}/usr/lib/qt5/imports
+Qml2Imports=${XBPS_CROSS_BASE}/usr/lib/qt5/qml
+Translations=${XBPS_CROSS_BASE}/usr/share/qt5/translations
+Settings=${XBPS_CROSS_BASE}/etc/xdg
+Examples=${XBPS_CROSS_BASE}/usr/share/qt5/examples
+HostPrefix=/usr
+HostData=/usr/lib/qt5
+HostBinaries=/usr/lib/qt5/bin
+HostLibraries=/usr/lib
+Spec=linux-g++
+TargetSpec=linux-g++
+_EOF
+
+	# create the qmake-wrapper here because it only
+	# makes sense together with the qmake build-helper
+	# and not to interfere with e.g. the qmake build-style
+        cat > "${XBPS_WRAPPERDIR}/qmake" <<_EOF
+#!/bin/sh
+exec /usr/lib/qt5/bin/qmake "\$@" \
+	QMAKE_CC=$CC QMAKE_CXX=$CXX QMAKE_LINK=$CXX QMAKE_LINK_C=$CC \
+	QMAKE_CFLAGS+="${CFLAGS}" QMAKE_CXXFLAGS+="${CXXFLAGS}" \
+	QMAKE_LFLAGS+="${LDFLAGS}" \
+	-qtconf "${XBPS_WRAPPERDIR}/qt.conf"
+_EOF
+
+	chmod 755 ${XBPS_WRAPPERDIR}/qmake
+	cp -p ${XBPS_WRAPPERDIR}/qmake{,-qt5}
+fi