[PATCH 39/39] Update the buildsystem for KConfig finding Qt

From: Thiago Macieira
Date: Tue Sep 22 2015 - 14:41:14 EST


The buildsystem will now only search for Qt 4 and Qt 5. Support for Qt 2
and 3 was dropped in the previous commits (Qt 3 was EOL'ed in 2010 or
so...).

For Qt 5, to be future-proof with the future direction notice appearing
in the 5.5 release, C++11 support is automatically enabled.

Signed-off-by: Thiago Macieira <thiago.macieira@xxxxxxxxx>
---
scripts/kconfig/Makefile | 73 +++++++++++++++++++-----------------------------
1 file changed, 28 insertions(+), 45 deletions(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 9b5b8c6..33c4994 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -226,53 +226,36 @@ $(obj)/.tmp_qtcheck: $(src)/Makefile

# Qt needs some extra effort...
$(obj)/.tmp_qtcheck:
- @set -e; $(kecho) " CHECK qt"; dir=""; pkg=""; \
- if ! pkg-config --exists QtCore 2> /dev/null; then \
- echo "* Unable to find the Qt4 tool qmake. Trying to use Qt3"; \
- pkg-config --exists qt 2> /dev/null && pkg=qt; \
- pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
- if [ -n "$$pkg" ]; then \
- cflags="\$$(shell pkg-config $$pkg --cflags)"; \
- libs="\$$(shell pkg-config $$pkg --libs)"; \
- moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
- dir="$$(pkg-config $$pkg --variable=prefix)"; \
- else \
- for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
- if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
- done; \
- if [ -z "$$dir" ]; then \
- echo >&2 "*"; \
- echo >&2 "* Unable to find any Qt installation. Please make sure that"; \
- echo >&2 "* the Qt4 or Qt3 development package is correctly installed and"; \
- echo >&2 "* either qmake can be found or install pkg-config or set"; \
- echo >&2 "* the QTDIR environment variable to the correct location."; \
- echo >&2 "*"; \
- false; \
- fi; \
- libpath=$$dir/lib; lib=qt; osdir=""; \
- $(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
- osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
- test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
- test -f $$libpath/libqt-mt.so && lib=qt-mt; \
- cflags="-I$$dir/include"; \
- libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
- moc="$$dir/bin/moc"; \
- fi; \
- if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
- echo "*"; \
- echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc instead."; \
- echo "*"; \
- moc="/usr/bin/moc"; \
- fi; \
- else \
- cflags="\$$(shell pkg-config QtCore QtGui --cflags)"; \
- libs="\$$(shell pkg-config QtCore QtGui --libs)"; \
- moc="\$$(shell pkg-config QtCore --variable=moc_location)"; \
- [ -n "$$moc" ] || moc="\$$(shell pkg-config QtCore --variable=prefix)/bin/moc"; \
- fi; \
+ @set -e; $(kecho) " CHECK qt"; \
+ qtver=`qmake -query QT_VERSION` || { \
+ echo >&2 "*"; \
+ echo >&2 "* qmake failed."; \
+ echo >&2 "*"; \
+ exit 1; \
+ }; \
+ qtlibdir=`qmake -query QT_INSTALL_LIBS`; \
+ qthdrdir=`qmake -query QT_INSTALL_HEADERS`; \
+ qtbindir=`qmake -query QT_INSTALL_BINS`; \
+ cflags="-I$$qthdrdir -I$$qthdrdir/QtCore -I$$qthdrdir/QtGui"; \
+ case "$$qtver" in \
+ 5.*) \
+ cflags="$$cflags -I$$qthdrdir/QtWidgets -std=c++11 -fPIC"; \
+ libs="-L$$qtlibdir -lQt5Widgets -lQt5Gui -lQt5Core "; \
+ ;; \
+ 4.*) \
+ libs="-L$$qtlibdir -lQtGui -lQtCore"; \
+ ;; \
+ *) \
+ echo >&2 "*"; \
+ echo >&2 "* Found qmake but it is for Qt version $$qtver, which is not supported."; \
+ echo >&2 "* Please install either Qt 4.8 or 5.x."; \
+ echo >&2 "*"; \
+ exit 1; \
+ ;; \
+ esac; \
echo "KC_QT_CFLAGS=$$cflags" > $@; \
echo "KC_QT_LIBS=$$libs" >> $@; \
- echo "KC_QT_MOC=$$moc" >> $@
+ echo "KC_QT_MOC=$$qtbindir/moc" >> $@
endif

$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
--
2.1.4

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