configure

#!/bin/sh

PREFIX=/usr
EPREFIX=$PREFIX

BINDIR=
SBINDIR=
LIBDIR=
LIBEXECDIR=
DATADIR=
SYSCONFDIR=
SHAREDSTATEDIR=
LOCALSTATEDIR=
INCLUDEDIR=
INFODIR=
MANDIR=

OS=`uname -s`
OS_VERSION=`uname -r`

TEMP_DIR=".tmp-`uname -n`"
mkdir -p $TEMP_DIR
if [ $? -ne 0 ]; then
	echo "Cannot create tmp dir"
	echo "Abort"
fi
touch $TEMP_DIR/options
touch $TEMP_DIR/features

# features

# help text
printhelp()
{
	echo "Usage: $0 [OPTIONS]..."
	cat << __EOF__
Installation directories:
  --prefix=PREFIX         path prefix for architecture-independent files
                          [/usr]
  --exec-prefix=EPREFIX   path prefix for architecture-dependent files
                          [PREFIX]

  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        system configuration files [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --mandir=DIR            man documentation [DATAROOTDIR/man]

Options:
  --toolkit=(gtk3|gtk2|gtk2legacy|qt5|qt4|motif)

__EOF__
}

#
# parse arguments 
#
for ARG in $@
do
    if [[ $ARG == --prefix=* ]]; then
        PREFIX=${ARG:9}
    elif [[ $ARG = --exec-prefix=* ]]; then
    	EPREFIX=${ARG:14}
    elif [[ $ARG = --bindir=* ]]; then
    	BINDIR=${ARG:9}
    elif [[ $ARG = --sbindir=* ]]; then
    	SBINDIR=${ARG:10}
    elif [[ $ARG = --libdir=* ]]; then
    	LIBDIR=${ARG:9}
    elif [[ $ARG = --libexecdir=* ]]; then
    	LIBEXECDIR=${ARG:13}
    elif [[ $ARG = --datadir=* ]]; then
    	DATADIR=${ARG:10}
    elif [[ $ARG = --sysconfdir=* ]]; then
    	SYSCONFDIR=${ARG:13}
    elif [[ $ARG = --sharedstatedir=* ]]; then
    	SHAREDSTATEDIR=${ARG:17}
    elif [[ $ARG = --localstatedir=* ]]; then
    	LOCALSTATEDIR=${ARG:16}
    elif [[ $ARG = --includedir=* ]]; then
    	INCLUDEDIR=${ARG:12}
    elif [[ $ARG = --infodir=* ]]; then
    	INFODIR=${ARG:10}
    elif [[ $ARG = --mandir=* ]]; then
    	MANDIR=${ARG:9}
    elif [ $ARG = "--help" ]; then
		printhelp
        exit 0	
    elif [[ $ARG == --toolkit=* ]]; then
    	OPT_TOOLKIT=${ARG:10}
    fi
done

# set dir variables
if [ -z $BINDIR ]; then
	BINDIR=$EPREFIX/bin
fi
if [ -z $SBINDIR ]; then
	SBINDIR=$EPREFIX/sbin
fi
if [ -z $LIBDIR ]; then
	LIBDIRDIR=$EPREFIX/lib
fi
if [ -z $LIBEXEC ]; then
	LIBExECDIR=$EPREFIX/libexec
fi
if [ -z $DATADIR ]; then
	DATADIR=$PREFIX/share
fi
if [ -z $SYSCONFDIR]; then
	SYSCONFDIR=$PREFIX/etc
fi
if [ -z $SHAREDSTATEDIR ]; then
	SHAREDSTATEDIR=$PREFIX/com
fi
if [ -z $LOCALSTATEDIR ]; then
	LOCALSTATEDIR=$PREFIX/var
fi
if [ -z $INCLUDEDIR ]; then
	INCLUDEDIR=$PREFIX/include
fi
if [ -z $INFODIR ]; then
	INFODIR=$PREFIX/info
fi
if [ -z $MANDIR ]; then
	MANDIR=$PREFIX/man
fi

which pkg-config > /dev/null
if [ $? -ne 0 ]; then
    PKG_CONFIG=pkg-config
else
    PKG_CONFIG=false
fi

# Simple uname based platform detection
# $PLATFORM is used for platform dependent dependency selection
printf "detect platform... "
if [ $OS = SunOS ]; then
    PLATFORM="solaris sunos unix svr4"
fi
if [ $OS = Linux ]; then
    PLATFORM="linux unix"
fi
if [ $OS = FreeBSD ]; then
    PLATFORM="freebsd bsd unix"
fi
if [ $OS = Darwin ]; then
    PLATFORM="macos osx bsd unix"
fi
echo $OS | grep "MINGW" > /dev/null
if [ $? -eq 0 ]; then
    PLATFORM="windows mingw"
fi

if [ -z "$PLATFORM" ]; then
    PLATFORM="unix"
fi

for p in $PLATFORM
do
	PLATFORM_NAME=$p
	break
done
echo $PLATFORM_NAME

isplatform()
{
    for p in $PLATFORM
    do
        if [ $p = $1 ]; then
            return 0
        fi
    done
    return 1
}

# generate config.mk and config.h
cat > $TEMP_DIR/config.mk << __EOF__
#
# config.mk generated by configure
#
__EOF__

echo > $TEMP_DIR/make.mk

ENV_CFLAGS=$CFLAGS
ENV_LDFLAGS=$LDFLAGS
ENV_CXXFLAGS=$CXXFLAGS

# Toolchain detection
# this will insert make vars to config.mk
source make/toolchain.sh

# add user specified flags to config.mk
echo >> $TEMP_DIR/config.mk
if [[ ! -z ${ENV_CFLAGS} ]]; then
    echo "CFLAGS += $ENV_CFLAGS" >> $TEMP_DIR/config.mk
fi
if [[ ! -z ${ENV_CXXFLAGS} ]]; then
    echo "CXXFLAGS += $ENV_CXXFLAGS" >> $TEMP_DIR/config.mk
fi
if [[ ! -z ${ENV_LDFLAGS} ]]; then
    echo "LDFLAGS += $ENV_LDFLAGS" >> $TEMP_DIR/config.mk
fi

#
# DEPENDENCIES
#

dependency_qt4()
{
    printf "checking for qt4... "
    # dependency qt4 
    while true
    do
        qmake-qt4 -o - /dev/null | grep DEFINES\  > /dev/null
        if [ $? -eq 0 ]; then
            CFLAGS+=" `qmake-qt4 -o - /dev/null | grep DEFINES\ `"
        else
            break
        fi
        qmake-qt4 -o - /dev/null | grep INCPATH\  > /dev/null
        if [ $? -eq 0 ]; then
            CFLAGS+=" `qmake-qt4 -o - /dev/null | grep INCPATH\ `"
        else
            break
        fi
         > /dev/null
        if [ $? -eq 0 ]; then
            LDFLAGS+=" ``"
        else
            break
        fi
        which qmake-qt4 > /dev/null
        if [ $? -ne 0 ]; then
        	break
        fi
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_gtk2legacy()
{
    printf "checking for gtk2legacy... "
    # dependency gtk2legacy 
    while true
    do
        if [ -z "PKG_CONFIG" ]; then
        	break
        fi
        if ! pkg-config gtk+-2.0 ; then
            break
        fi
        CFLAGS+=" `pkg-config --cflags gtk+-2.0`"
        LDFLAGS+=" `pkg-config --libs gtk+-2.0`"
        CFLAGS+="-DUI_GTK2 -DUI_GTK2LEGACY"    
        LDFLAGS+="-lpthread"    
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_qt5()
{
    printf "checking for qt5... "
    # dependency qt5 
    while true
    do
        qmake-qt5 -o - /dev/null | grep DEFINES\  > /dev/null
        if [ $? -eq 0 ]; then
            CFLAGS+=" `qmake-qt5 -o - /dev/null | grep DEFINES\ `"
        else
            break
        fi
        qmake-qt5 -o - /dev/null | grep INCPATH\  > /dev/null
        if [ $? -eq 0 ]; then
            CFLAGS+=" `qmake-qt5 -o - /dev/null | grep INCPATH\ `"
        else
            break
        fi
         > /dev/null
        if [ $? -eq 0 ]; then
            LDFLAGS+=" ``"
        else
            break
        fi
        which qmake-qt5 > /dev/null
        if [ $? -ne 0 ]; then
        	break
        fi
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_gtk2()
{
    printf "checking for gtk2... "
    # dependency gtk2 
    while true
    do
        if [ -z "PKG_CONFIG" ]; then
        	break
        fi
        if ! pkg-config gtk+-2.0 ; then
            break
        fi
        CFLAGS+=" `pkg-config --cflags gtk+-2.0`"
        LDFLAGS+=" `pkg-config --libs gtk+-2.0`"
        CFLAGS+="-DUI_GTK2"    
        LDFLAGS+="-lpthread"    
        pkg-config --atleast-version=2.20 gtk+-2.0 > /dev/null
        if [ $? -ne 0 ]; then
        	break
        fi
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_gtk3()
{
    printf "checking for gtk3... "
    # dependency gtk3 
    while true
    do
        if [ -z "PKG_CONFIG" ]; then
        	break
        fi
        if ! pkg-config gtk+-3.0 ; then
            break
        fi
        CFLAGS+=" `pkg-config --cflags gtk+-3.0`"
        LDFLAGS+=" `pkg-config --libs gtk+-3.0`"
        CFLAGS+="-DUI_GTK3"    
        LDFLAGS+="-lpthread"    
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_motif()
{
    printf "checking for motif... "
    # dependency motif 
    while true
    do
        CFLAGS+="-DUI_MOTIF"    
        LDFLAGS+="-lXm -lXt -lX11 -lpthread"    
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_wpf()
{
    printf "checking for wpf... "
    # dependency wpf platform="windows"
    while true
    do
    	if ! isplatform "windows"; then
            break
        fi
        CFLAGS+="-DUI_WPF"    
        echo yes
        return 0
    done
	
	echo no
	return 1
}
dependency_cocoa()
{
    printf "checking for cocoa... "
    # dependency cocoa platform="macos"
    while true
    do
    	if ! isplatform "macos"; then
            break
        fi
        CFLAGS+="-DUI_COCOA"    
        LDFLAGS+="-lobjc -framework Cocoa"    
        echo yes
        return 0
    done
	
	echo no
	return 1
}

DEPENDENCIES_FAILED=
ERROR=0

#
# OPTION VALUES
#
checkopt_toolkit_gtk3()
{
	VERR=0
	dependency_gtk3
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = gtk
GTKOBJ = draw_cairo.o

__EOF__
	return 0
}
checkopt_toolkit_gtk2()
{
	VERR=0
	dependency_gtk2
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = gtk
GTKOBJ = draw_cairo.o

__EOF__
	return 0
}
checkopt_toolkit_gtk2legacy()
{
	VERR=0
	dependency_gtk2legacy
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = gtk
GTKOBJ = draw_gdk.o

__EOF__
	return 0
}
checkopt_toolkit_qt5()
{
	VERR=0
	dependency_qt5
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = qt
LD = $(CXX)

__EOF__
	return 0
}
checkopt_toolkit_qt4()
{
	VERR=0
	dependency_qt4
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = qt
LD = $(CXX)

__EOF__
	return 0
}
checkopt_toolkit_motif()
{
	VERR=0
	dependency_motif
	if [ $? -ne 0 ]; then
		VERR=1
	fi
	if [ $VERR -ne 0 ]; then
		return 1
	fi
	cat >> $TEMP_DIR/make.mk << __EOF__
TOOLKIT = motif

__EOF__
	return 0
}

#
# TARGETS
#
CFLAGS=
CXXFLAGS=
LDFLAGS=

# Target: tk
CFLAGS=
LDFLAGS=
CXXFLAGS=


# Option: --toolkit
if [ -z $OPT_TOOLKIT ]; then
	SAVED_ERROR=$ERROR
	SAVED_DEPENDENCIES_FAILED=$DEPENDENCIES_FAILED
	ERROR=0
	while true
	do
		if isplatform "windows"; then
		checkopt_toolkit_wpf
		if [ $? -eq 0 ]; then
			echo "  toolkit: wpf" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		fi
		if isplatform "macos"; then
		checkopt_toolkit_cocoa
		if [ $? -eq 0 ]; then
			echo "  toolkit: cocoa" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		fi
		checkopt_toolkit_gtk3
		if [ $? -eq 0 ]; then
			echo "  toolkit: gtk3" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		checkopt_toolkit_qt5
		if [ $? -eq 0 ]; then
			echo "  toolkit: qt5" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		checkopt_toolkit_gtk2
		if [ $? -eq 0 ]; then
			echo "  toolkit: gtk2" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		checkopt_toolkit_qt4
		if [ $? -eq 0 ]; then
			echo "  toolkit: qt4" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		checkopt_toolkit_motif
		if [ $? -eq 0 ]; then
			echo "  toolkit: motif" >> $TEMP_DIR/options
			ERROR=0
			break
		fi
		break
	done
	if [ $ERROR -ne 0 ]; then
		SAVED_ERROR=1
	fi
	ERROR=$SAVED_ERROR
	DEPENDENCIES_FAILED=$SAVED_DEPENDENCIES_FAILED=
else
	if false; then
		false
	elif [ $OPT_TOOLKIT = "gtk3" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_gtk3
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	elif [ $OPT_TOOLKIT = "gtk2" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_gtk2
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	elif [ $OPT_TOOLKIT = "gtk2legacy" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_gtk2legacy
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	elif [ $OPT_TOOLKIT = "qt5" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_qt5
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	elif [ $OPT_TOOLKIT = "qt4" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_qt4
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	elif [ $OPT_TOOLKIT = "motif" ]; then
		echo "  toolkit: $OPT_TOOLKIT" >> $TEMP_DIR/options
		checkopt_toolkit_motif
		if [ $? -ne 0 ]; then
			ERROR=1
		fi
	fi
fi

echo >> $TEMP_DIR/config.mk
if [[ ! -z ${CFLAGS} ]]; then
    echo "TK_CFLAGS  += $CFLAGS" >> $TEMP_DIR/config.mk
fi
if [[ ! -z ${CXXFLAGS} ]]; then
    echo "TK_CXXFLAGS += $CXXFLAGS" >> $TEMP_DIR/config.mk
fi
if [[ ! -z ${LDFLAGS} ]]; then
    echo "TK_LDFLAGS += $LDFLAGS" >> $TEMP_DIR/config.mk
fi

if [ $ERROR -ne 0 ]; then
	echo
	echo "Error: Unresolved dependencies"
	echo $DEPENCIES_FAILED
	rm -Rf $TEMP_DIR
	exit 1
fi

echo "configure finished"
echo
echo "Build Config:"
echo "  PREFIX:    $PREFIX"
echo "  TOOLCHAIN: $TOOLCHAIN_NAME"
echo "Options:"
cat $TEMP_DIR/options
echo
cat $TEMP_DIR/config.mk $TEMP_DIR/make.mk > config.mk
rm -Rf $TEMP_DIR