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Message-Id: <1526973741-664-3-git-send-email-yamada.masahiro@socionext.com>
Date: Tue, 22 May 2018 16:22:19 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-kbuild@...r.kernel.org
Cc: Sam Ravnborg <sam@...nborg.org>,
Ulf Magnusson <ulfalizer@...il.com>,
Randy Dunlap <rdunlap@...radead.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/4] kconfig: refactor Qt package checks for building qconf
Currently, the necessary package checks for building qconf is
surrounded by ifeq ($(MAKECMDGOALS),xconfig) ... endif.
Then, Make will restart when .tmp_qtcheck is generated.
To simplify the Makefile, move the scripting to a separate file,
and use filechk. The shell script is executed everytime xconfig
is run, but it is not a costly script.
In the old code, 'pkg-config --exists' only checked Qt5Core / QtCore,
but the set of necessary packages should be checked.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
Tested-by: Randy Dunlap <rdunlap@...radead.org>
Acked-by: Randy Dunlap <rdunlap@...radead.org>
---
Changes in v3: None
Changes in v2: None
scripts/kconfig/Makefile | 73 +++++++++++++++++---------------------------
scripts/kconfig/qconf-cfg.sh | 25 +++++++++++++++
2 files changed, 53 insertions(+), 45 deletions(-)
create mode 100755 scripts/kconfig/qconf-cfg.sh
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 5def877..e9a87bf 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -188,8 +188,6 @@ HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
# Utilizes ncurses
# mconf: Used for the menuconfig target
# Utilizes the lxdialog package
-# qconf: Used for the xconfig target
-# Based on Qt which needs to be installed to compile it
# gconf: Used for the gconfig target
# Based on GTK+ which needs to be installed to compile it
# object files used by all kconfig flavours
@@ -201,14 +199,12 @@ conf-objs := conf.o zconf.tab.o
mconf-objs := mconf.o zconf.tab.o $(lxdialog)
nconf-objs := nconf.o zconf.tab.o nconf.gui.o
kxgettext-objs := kxgettext.o zconf.tab.o
-qconf-cxxobjs := qconf.o
-qconf-objs := zconf.tab.o
gconf-objs := gconf.o zconf.tab.o
-hostprogs-y := conf nconf mconf kxgettext qconf gconf
+hostprogs-y := conf nconf mconf kxgettext gconf
targets += zconf.lex.c
-clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
+clean-files := .tmp_gtkcheck
clean-files += gconf.glade.h
clean-files += config.pot linux.pot
@@ -228,9 +224,6 @@ HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTC
HOSTCFLAGS_zconf.lex.o := -I$(src)
HOSTCFLAGS_zconf.tab.o := -I$(src)
-HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
-HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
-
HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
-Wno-missing-prototypes
@@ -241,34 +234,22 @@ HOSTLOADLIBES_nconf = $(shell \
pkg-config --libs menuw panelw ncursesw 2>/dev/null \
|| pkg-config --libs menu panel ncurses 2>/dev/null \
|| echo "-lmenu -lpanel -lncurses" )
-$(obj)/qconf.o: $(obj)/.tmp_qtcheck
-
-ifeq ($(MAKECMDGOALS),xconfig)
-$(obj)/.tmp_qtcheck: $(src)/Makefile
--include $(obj)/.tmp_qtcheck
-
-# Qt needs some extra effort...
-$(obj)/.tmp_qtcheck:
- @set -e; $(kecho) " CHECK qt"; \
- if pkg-config --exists Qt5Core; then \
- cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
- libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
- moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
- elif pkg-config --exists QtCore; then \
- cflags=`pkg-config --cflags QtCore QtGui`; \
- libs=`pkg-config --libs QtCore QtGui`; \
- moc=`pkg-config --variable=moc_location QtCore`; \
- else \
- echo >&2 "*"; \
- echo >&2 "* Could not find Qt via pkg-config."; \
- echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
- echo >&2 "*"; \
- exit 1; \
- fi; \
- echo "KC_QT_CFLAGS=$$cflags" > $@; \
- echo "KC_QT_LIBS=$$libs" >> $@; \
- echo "KC_QT_MOC=$$moc" >> $@
-endif
+
+# qconf: Used for the xconfig target based on Qt
+hostprogs-y += qconf
+qconf-cxxobjs := qconf.o
+qconf-objs := zconf.tab.o
+
+HOSTLOADLIBES_qconf = $(shell . $(obj)/.qconf-cfg && echo $$libs)
+HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/.qconf-cfg && echo $$cflags)
+
+$(obj)/qconf.o: $(obj)/.qconf-cfg $(obj)/qconf.moc
+
+quiet_cmd_moc = MOC $@
+ cmd_moc = $(shell . $(obj)/.qconf-cfg && echo $$moc) -i $< -o $@
+
+$(obj)/%.moc: $(src)/%.h $(obj)/.qconf-cfg
+ $(call cmd,moc)
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
@@ -298,15 +279,17 @@ endif
$(obj)/zconf.tab.o: $(obj)/zconf.lex.c
-$(obj)/qconf.o: $(obj)/qconf.moc
-
-quiet_cmd_moc = MOC $@
- cmd_moc = $(KC_QT_MOC) -i $< -o $@
-
-$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
- $(call cmd,moc)
-
# Extract gconf menu items for i18n support
$(obj)/gconf.glade.h: $(obj)/gconf.glade
$(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
$(obj)/gconf.glade
+
+# check if necessary packages are available, and configure build flags
+define filechk_conf_cfg
+ $(CONFIG_SHELL) $<
+endef
+
+$(obj)/.%conf-cfg: $(src)/%conf-cfg.sh FORCE
+ $(call filechk,conf_cfg)
+
+clean-files += .*conf-cfg
diff --git a/scripts/kconfig/qconf-cfg.sh b/scripts/kconfig/qconf-cfg.sh
new file mode 100755
index 0000000..0862e15
--- /dev/null
+++ b/scripts/kconfig/qconf-cfg.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+PKG="Qt5Core Qt5Gui Qt5Widgets"
+PKG2="QtCore QtGui"
+
+if pkg-config --exists $PKG; then
+ echo cflags=\"-std=c++11 -fPIC $(pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets)\"
+ echo libs=\"$(pkg-config --libs $PKG)\"
+ echo moc=\"$(pkg-config --variable=host_bins Qt5Core)/moc\"
+ exit 0
+fi
+
+if pkg-config --exists $PKG2; then
+ echo cflags=\"$(pkg-config --cflags $PKG2)\"
+ echo libs=\"$(pkg-config --libs $PKG2)\"
+ echo moc=\"$(pkg-config --variable=moc_location QtCore)\"
+ exit 0
+fi
+
+echo >&2 "*"
+echo >&2 "* Could not find Qt via pkg-config."
+echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"
+echo >&2 "*"
+exit 1
--
2.7.4
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