# -*- Makefile -*-
# This file contains the detection rules
all:

PKGCONFIG=pkg-config
XML2CONFIG=xml2-config
XSLCONFIG=xslt-config
QMAKE=qmake
MOC=moc
UIC=uic
TAR=tar

CONFIGFILE = config.cache
ifeq ($(CONFIGURING),1)

# Detect the target system
# Ask the compiler what OS it's producing files for
UNAME := $(shell $(CC) -dumpmachine 2>&1 | grep -E -o "linux|darwin|win|gnu|kfreebsd")

# find libdivecomputer
# First deal with the cross compile environment and with Mac.
# For the native case, Linus doesn't want to trust pkg-config given
# how young libdivecomputer still is - so we check the typical
# subdirectories of /usr/local and /usr and then we give up. You can
# override by simply setting it here
#
ifeq ($(CC), i686-w64-mingw32-gcc)
# ok, we are cross building for Windows
	LIBDIVECOMPUTERINCLUDES = $(shell $(PKGCONFIG) --cflags libdivecomputer)
	LIBDIVECOMPUTERARCHIVE = $(shell $(PKGCONFIG) --libs libdivecomputer)
	RESFILE = packaging/windows/subsurface.res
	LDFLAGS += -Wl,-subsystem,windows
	LIBWINSOCK = -lwsock32
else ifeq ($(UNAME), darwin)
	LIBDIVECOMPUTERINCLUDES = $(shell $(PKGCONFIG) --cflags libdivecomputer)
	LIBDIVECOMPUTERARCHIVE = $(shell $(PKGCONFIG) --libs libdivecomputer)
else ifneq ($(LIBDCDEVEL),)
	LIBDIVECOMPUTERDIR = ../libdivecomputer
	LIBDIVECOMPUTERINCLUDES = -I$(LIBDIVECOMPUTERDIR)/include
	LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/src/.libs/libdivecomputer.a
else ifeq ($(shell $(PKGCONFIG) --exists libdivecomputer; echo $$?),0)
	LIBDIVECOMPUTERINCLUDES = $(shell $(PKGCONFIG) --cflags libdivecomputer)
	LIBDIVECOMPUTERARCHIVE = $(shell $(PKGCONFIG) --libs libdivecomputer)
else
libdc-local := $(wildcard /usr/local/lib/libdivecomputer.a)
libdc-local64 := $(wildcard /usr/local/lib64/libdivecomputer.a)
libdc-usr := $(wildcard /usr/lib/libdivecomputer.a)
libdc-usr64 := $(wildcard /usr/lib64/libdivecomputer.a)

ifneq ($(strip $(libdc-local)),)
	LIBDIVECOMPUTERDIR = /usr/local
	LIBDIVECOMPUTERINCLUDES = -I$(LIBDIVECOMPUTERDIR)/include
	LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib/libdivecomputer.a
else ifneq ($(strip $(libdc-local64)),)
	LIBDIVECOMPUTERDIR = /usr/local
	LIBDIVECOMPUTERINCLUDES = -I$(LIBDIVECOMPUTERDIR)/include
	LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib64/libdivecomputer.a
else ifneq ($(strip $(libdc-usr)),)
	LIBDIVECOMPUTERDIR = /usr
	LIBDIVECOMPUTERINCLUDES = -I$(LIBDIVECOMPUTERDIR)/include
	LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib/libdivecomputer.a
else ifneq ($(strip $(libdc-usr64)),)
	LIBDIVECOMPUTERDIR = /usr
	LIBDIVECOMPUTERINCLUDES = -I$(LIBDIVECOMPUTERDIR)/include
	LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib64/libdivecomputer.a
else
$(error Cannot find libdivecomputer - please edit Makefile)
endif
endif

# Libusb-1.0 is only required if libdivecomputer was built with it.
# And libdivecomputer is only built with it if libusb-1.0 is
# installed. So get libusb if it exists, but don't complain
# about it if it doesn't.
LIBUSB = $(shell $(PKGCONFIG) --libs libusb-1.0 2> /dev/null)

# Find qmake. Rules are:
#  - use qmake if it is in $PATH
#    [qmake -query QT_VERSION  will fail if it's Qt 3's qmake]
#  - if that fails, try qmake-qt4
#  - if that fails, print an error
# We specifically do not search for qmake-qt5 since that is not supposed
# to exist.
QMAKE = $(shell { qmake -query QT_VERSION >/dev/null 2>&1 && echo qmake; } || \
		{ qmake-qt4 -v >/dev/null 2>&1 && echo qmake-qt4; })
ifeq ($(strip $(QMAKE)),)
$(error Could not find qmake or qmake-qt4 in $$PATH or they failed)
endif

# Use qmake to find out which Qt version we are building for.
QT_VERSION_MAJOR = $(shell $(QMAKE) -query QT_VERSION | cut -d. -f1)
ifeq ($(QT_VERSION_MAJOR), 5)
#	QT_MODULES = Qt5Widgets Qt5Svg
#	QT_CORE = Qt5Core
#	QTBINDIR = $(shell $(QMAKE) -query QT_HOST_BINS)
#	# Tool paths are not stored in .pc files in Qt 5.0
#	MOC = $(QTBINDIR)/moc
#	UIC = $(QTBINDIR)/uic
#	RCC = $(QTBINDIR)/rcc
# if qmake is qt5, try to get the qt4 one.
	QMAKE = { qmake-qt4 -v >/dev/null 2>&1 && echo qmake-qt4; }
#else
endif

ifeq ($(strip $(QMAKE)),)
$(error Could not find qmake or qmake-qt4 in $$PATH for the Qt4 version they failed)
endif

	QT_MODULES = QtGui QtSvg QtNetwork QtWebKit
	QT_CORE = QtCore
	MOC = $(shell $(PKGCONFIG) --variable=moc_location QtCore)
	UIC = $(shell $(PKGCONFIG) --variable=uic_location QtGui)
	RCC = $(shell $(PKGCONFIG) --variable=rcc_location QtGui)
#endif

QTCXXFLAGS = $(shell $(PKGCONFIG) --cflags $(QT_MODULES))
LIBQT = $(shell $(PKGCONFIG) --libs $(QT_MODULES))
ifneq ($(filter reduce_relocations, $(shell $(PKGCONFIG) --variable qt_config $(QT_CORE))), )
	QTCXXFLAGS += -fPIE
endif

ifeq ($(UNAME), darwin)
	LDFLAGS += -framework CoreFoundation -framework CoreServices
endif

LIBDIVECOMPUTERCFLAGS = $(LIBDIVECOMPUTERINCLUDES)
LIBDIVECOMPUTER = $(LIBDIVECOMPUTERARCHIVE) $(LIBUSB)

LIBXML2 = $(shell $(XML2CONFIG) --libs)
LIBXSLT = $(shell $(XSLCONFIG) --libs)
XML2CFLAGS = $(shell $(XML2CONFIG) --cflags)
XSLCFLAGS = $(shell $(XSLCONFIG) --cflags)

LIBZIP = $(shell $(PKGCONFIG) --libs libzip 2> /dev/null)
ZIPFLAGS = $(strip $(shell $(PKGCONFIG) --cflags libzip 2> /dev/null))

LIBSQLITE3 = $(shell $(PKGCONFIG) --libs sqlite3 2> /dev/null)
SQLITE3FLAGS = $(strip $(shell $(PKGCONFIG) --cflags sqlite3))

# Before Marble 4.9, the GeoDataTreeModel.h header wasn't installed
# Check if it's present by trying to compile
MARBLEFLAGS = $(shell $(CXX) $(QTCXXFLAGS) -E -include marble/GeoDataTreeModel.h -xc++ /dev/null > /dev/null 2>&1 || echo " -DINCOMPLETE_MARBLE")
MARBLELIBS = -lmarblewidget

# Write the configure file
all: configure
configure $(CONFIGURE): Configure.mk
	@echo "\
	CONFIGURED = 1\\\
	UNAME = $(UNAME)\\\
	LIBDIVECOMPUTERDIR = $(LIBDIVECOMPUTERDIR)\\\
	LIBDIVECOMPUTERCFLAGS = $(LIBDIVECOMPUTERCFLAGS)\\\
	LIBDIVECOMPUTER = $(LIBDIVECOMPUTER)\\\
	LIBWINSOCK = $(LIBWINSOCK)\\\
	LDFLAGS = $(LDFLAGS)\\\
	RESFILE = $(RESFILE)\\\
	LIBQT = $(LIBQT)\\\
	QTCXXFLAGS = $(QTCXXFLAGS)\\\
	MOC = $(MOC)\\\
	UIC = $(UIC)\\\
	RCC = $(RCC)\\\
	LIBXML2 = $(LIBXML2)\\\
	LIBXSLT = $(LIBXSLT)\\\
	XML2CFLAGS = $(XML2CFLAGS)\\\
	XSLCFLAGS = $(XSLCFLAGS)\\\
	LIBZIP = $(LIBZIP)\\\
	ZIPFLAGS = $(ZIPFLAGS)\\\
	LIBSQLITE3 = $(LIBSQLITE3)\\\
	SQLITE3FLAGS = $(SQLITE3FLAGS)\\\
	MARBLEFLAGS = $(MARBLEFLAGS)\\\
	MARBLELIBS = $(MARBLELIBS)\\\
	" | tr '\\' '\n' > $(CONFIGFILE)

else
configure $(CONFIGFILE): Configure.mk
	@test -e $(CONFIGFILE) && echo Reconfiguring.. || echo Configuring...
	@$(MAKE) CONFIGURING=1 configure
	@echo Done

-include $(CONFIGFILE)
endif

.PHONY: configure all