update configure script

configure script now generates configuration files
for the sourcecode and the build system.

3 files changed, 395 insertions, 151 deletions

diff --git a/.gitignore b/.gitignore
index cc06bf2..0f922c6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@ gnupg/
 *.swp
 shop.db
 ktt-shopsystem.cfg
+config.mk
+config.h
diff --git a/configure b/configure
index edaa768..4da1bbd 100755
--- a/configure
+++ b/configure
@@ -1,165 +1,56 @@
 #!/bin/sh
+. ./configure-functions.sh
 
-# This awk script is derived from autotools
-awk_verscmp='
-  # Use only awk features that work with 7th edition Unix awk (1978).
-  # My, what an old awk you have, Mr. Solaris!
-  END {
-    while (length(v1) && length(v2)) {
-      # Set d1 to be the next thing to compare from v1, and likewise for d2.
-      # Normally this is a single character, but if v1 and v2 contain digits,
-      # compare them as integers and fractions as strverscmp does.
-      if (v1 ~ /^[0-9]/ && v2 ~ /^[0-9]/) {
-	# Split v1 and v2 into their leading digit string components d1 and d2,
-	# and advance v1 and v2 past the leading digit strings.
-	for (len1 = 1; substr(v1, len1 + 1) ~ /^[0-9]/; len1++) continue
-	for (len2 = 1; substr(v2, len2 + 1) ~ /^[0-9]/; len2++) continue
-	d1 = substr(v1, 1, len1); v1 = substr(v1, len1 + 1)
-	d2 = substr(v2, 1, len2); v2 = substr(v2, len2 + 1)
-	if (d1 ~ /^0/) {
-	  if (d2 ~ /^0/) {
-	    # Compare two fractions.
-	    while (d1 ~ /^0/ && d2 ~ /^0/) {
-	      d1 = substr(d1, 2); len1--
-	      d2 = substr(d2, 2); len2--
-	    }
-	    if (len1 != len2 && ! (len1 && len2 && substr(d1, 1, 1) == substr(d2, 1, 1))) {
-	      # The two components differ in length, and the common prefix
-	      # contains only leading zeros.  Consider the longer to be less.
-	      d1 = -len1
-	      d2 = -len2
-	    } else {
-	      # Otherwise, compare as strings.
-	      d1 = "x" d1
-	      d2 = "x" d2
-	    }
-	  } else {
-	    # A fraction is less than an integer.
-	    exit 1
-	  }
-	} else {
-	  if (d2 ~ /^0/) {
-	    # An integer is greater than a fraction.
-	    exit 2
-	  } else {
-	    # Compare two integers.
-	    d1 += 0
-	    d2 += 0
-	  }
-	}
-      } else {
-	# The normal case, without worrying about digits.
-	d1 = substr(v1, 1, 1); v1 = substr(v1, 2)
-	d2 = substr(v2, 1, 1); v2 = substr(v2, 2)
-      }
-      if (d1 < d2) exit 1
-      if (d1 > d2) exit 2
-    }
-    # Beware Solaris /usr/xgp4/bin/awk (at least through Solaris 10),
-    # which mishandles some comparisons of empty strings to integers.
-    if (length(v2)) exit 1
-    if (length(v1)) exit 2
-  }
-'
+NAME="serial-barcode-scanner"
+AUTHOR="Sebastian Reichel <sre@ring0.de>"
+VERSION="0.1"
 
-check_prg_version() {
-	printf " %-29s" "$1..."
-
-	awk "$awk_verscmp" v1="$2" v2="$3" /dev/null
-
-	if [ "$?" = "2" ] ; then
-		echo "MISSING";
-		return 1;
-	else
-		echo "     OK";
-		return 0;
-	fi
-}
-
-check_pkg_config() {
-	pkg="$1"
-	version="$2"
-
-	printf " %-29s" "$1..."
-
-	if [ "x$version" = "x" ] ; then
-		pkg-config --exists "$1"
-	else
-		pkg-config --atleast-version "$2" "$1"
-	fi
+check_dependencies() {
+	VALA_VERSION=`valac --api-version`
+	GPGME_VERSION=`gpgme-config --version`
+	ESMTP_VERSION=`libesmtp-config --version`
 
-	result=$?
+	echo "Checking software dependencies:"
+	check_prg_version  valac			0.16	$VALA_VERSION	"force"
 
-	if [ $result = 1 ] ; then
-		echo "MISSING"
-	else
-		echo "     OK"
-	fi
+	echo "Checking library dependencies:"
+	check_pkg_version  ncursesw			5.9						"force"
+	check_pkg_version  gdk-2.0			2.24					"force"
+	check_pkg_version  gee-1.0			0.6						"force"
+	check_pkg_version  gio-2.0			2.36					"force"
+	check_pkg_version  gmime-2.6		2.6.10					"force"
+	check_prg_version  gpgme			1.2		$GPGME_VERSION	"force"
+	check_pkg_version  gstreamer-0.10	0.10.36					"force"
+	check_pkg_version  libarchive		3.0						"force"
+	check_prg_version  libesmtp			0.1		$ESMTP_VERSION	"force"	
+	check_pkg_version  librsvg-2.0		2.36					"force"
+	check_pkg_version  libsoup-2.4		2.38					"force"
+	check_pkg_version  pangocairo		1.32					"force"
+	check_pkg_version  sqlite3			3.7						"force"
 
-	return $?
+	echo "Checking font dependencies:"
+	check_font LMSans10											"force"
+	check_font LMRoman10										"force"
 }
 
-check_font() {
-	name="$1"
-
-	printf " %-29s" "$1..."
-
-	for file in /etc/fonts/conf.avail/*; do
-		grep -q "$name" "$file"
-		if [ $? -eq 0 ] ; then
-			echo "     OK"
-			return 0
-		fi
-	done
-
-	echo "MISSING"
-	return 1
+extra_options() {
+	case $1 in
+		*)
+			DESC="not available"
+			CMD="not-available"
+	esac
 }
 
-check_dependencies() {
-	echo "Checking software dependencies:"
-	errors=0
-	check_prg_version valac				0.16		`valac --api-version`
-	errors=`expr $errors + $?`
+BASE=`dirname $0`
 
-	echo "Checking library dependencies:"
-	check_pkg_config  ncursesw			5.9
-	errors=`expr $errors + $?`
-	check_pkg_config  gdk-2.0			2.24
-	errors=`expr $errors + $?`
-	check_pkg_config  gee-1.0			0.6
-	errors=`expr $errors + $?`
-	check_pkg_config  gio-2.0			2.36
-	errors=`expr $errors + $?`
-	check_pkg_config  gmime-2.6			2.6.10
-	errors=`expr $errors + $?`
-	check_prg_version gpgme				1.2			`gpgme-config --version`
-	errors=`expr $errors + $?`
-	check_pkg_config  gstreamer-0.10	0.10.36
-	errors=`expr $errors + $?`
-	check_pkg_config  libarchive		3.0
-	errors=`expr $errors + $?`
-	check_prg_version libesmtp			0.1			`libesmtp-config --version`
-	errors=`expr $errors + $?`
-	check_pkg_config  librsvg-2.0		2.36
-	errors=`expr $errors + $?`
-	check_pkg_config  libsoup-2.4		2.38
-	errors=`expr $errors + $?`
-	check_pkg_config  pangocairo		1.32
-	errors=`expr $errors + $?`
-	check_pkg_config  sqlite3			3.7
-	errors=`expr $errors + $?`
+check_parameters $@
+check_compiler
+check_install
+check_pkgconfig
 
-	echo "Checking font dependencies:"
-	check_font LMSans10
-	errors=`expr $errors + $?`
-	check_font LMRoman10
-	errors=`expr $errors + $?`
+check_dependencies
 
-	if [ $errors -ne 0 ] ; then
-		echo "Aborting due to errors!"
-		exit 1;
-	fi
-}
+create_config $BASE/config.mk VALAC
+create_header $BASE/config.h VERSION
 
-check_dependencies
+final_report CC PREFIX
diff --git a/configure-functions.sh b/configure-functions.sh
new file mode 100755
index 0000000..e003e5d
--- /dev/null
+++ b/configure-functions.sh
@@ -0,0 +1,351 @@
+#!/bin/sh
+# MIT license
+# Copyright 2009-2010 Sebastian Reichel <sre@ring0.de>
+
+# These are default values for some configurable things
+if [ "x$CC" = "x" ] ; then
+	CC=gcc
+fi;
+
+if [ "x$VALAC" = "x" ] ; then
+	VALAC=valac
+fi;
+
+if [ "x$INSTALL" = "x" ] ; then
+	INSTALL=install
+fi;
+
+if [ "x$PKGCONFIG" = "x" ] ; then
+	PKGCONFIG=pkg-config
+fi;
+
+PREFIX=/usr/local
+INSTALL_DATA=`echo ${INSTALL} -m 644`
+INSTALL_PROGRAM=`echo ${INSTALL} -m 755 -s`
+INSTALL_DIR=`echo ${INSTALL} -d`
+
+# This awk script is derived from autotools
+awk_verscmp='
+  # Use only awk features that work with 7th edition Unix awk (1978).
+  # My, what an old awk you have, Mr. Solaris!
+  END {
+    while (length(v1) && length(v2)) {
+      # Set d1 to be the next thing to compare from v1, and likewise for d2.
+      # Normally this is a single character, but if v1 and v2 contain digits,
+      # compare them as integers and fractions as strverscmp does.
+      if (v1 ~ /^[0-9]/ && v2 ~ /^[0-9]/) {
+	# Split v1 and v2 into their leading digit string components d1 and d2,
+	# and advance v1 and v2 past the leading digit strings.
+	for (len1 = 1; substr(v1, len1 + 1) ~ /^[0-9]/; len1++) continue
+	for (len2 = 1; substr(v2, len2 + 1) ~ /^[0-9]/; len2++) continue
+	d1 = substr(v1, 1, len1); v1 = substr(v1, len1 + 1)
+	d2 = substr(v2, 1, len2); v2 = substr(v2, len2 + 1)
+	if (d1 ~ /^0/) {
+	  if (d2 ~ /^0/) {
+	    # Compare two fractions.
+	    while (d1 ~ /^0/ && d2 ~ /^0/) {
+	      d1 = substr(d1, 2); len1--
+	      d2 = substr(d2, 2); len2--
+	    }
+	    if (len1 != len2 && ! (len1 && len2 && substr(d1, 1, 1) == substr(d2, 1, 1))) {
+	      # The two components differ in length, and the common prefix
+	      # contains only leading zeros.  Consider the longer to be less.
+	      d1 = -len1
+	      d2 = -len2
+	    } else {
+	      # Otherwise, compare as strings.
+	      d1 = "x" d1
+	      d2 = "x" d2
+	    }
+	  } else {
+	    # A fraction is less than an integer.
+	    exit 1
+	  }
+	} else {
+	  if (d2 ~ /^0/) {
+	    # An integer is greater than a fraction.
+	    exit 2
+	  } else {
+	    # Compare two integers.
+	    d1 += 0
+	    d2 += 0
+	  }
+	}
+      } else {
+	# The normal case, without worrying about digits.
+	d1 = substr(v1, 1, 1); v1 = substr(v1, 2)
+	d2 = substr(v2, 1, 1); v2 = substr(v2, 2)
+      }
+      if (d1 < d2) exit 1
+      if (d1 > d2) exit 2
+    }
+    # Beware Solaris /usr/xgp4/bin/awk (at least through Solaris 10),
+    # which mishandles some comparisons of empty strings to integers.
+    if (length(v2)) exit 1
+    if (length(v1)) exit 2
+  }
+'
+
+show_usage() {
+	echo "'configure' configures $1 to adapt to many kinds of systems."
+	echo "Usage: ./configure [OPTION]... [VAR=VALUE]..."
+	echo
+	echo "To assign environment variables (e.g. CC, CFLAGS, ...), specify them"
+	echo "as VAR=VALUE. See below for descriptions of some of the useful variables."
+	echo
+	echo "Defaults for the options are specified in brackets."
+	echo
+	echo "Options:"
+
+	echo "  -h, --help                  display this help and exit"
+	echo "  -v, --version               display version information and exit"
+	echo "  --prefix=PREFIX             install files in PREFIX [/usr/local]"
+	echo "  --debug                     enable debug build (-g flag)"
+	echo "  --colored                   enable colored build"
+
+	for parameter in `extra_options list-all` ; do
+		extra_options $parameter
+		printf "  %-27s $DESC\n" $parameter
+	done
+
+	echo
+	echo "Some influential environment variables:"
+	echo "  CC                          C compiler command"
+	echo "  VALAC                       Vala compiler"
+	echo "  CFLAGS                      C compiler flags, e.g. -I<header dir>"
+	echo "  LDFLAGS                     linker flags, e.g. -L<lib dir>"
+	echo "  INSTALL                     install binary"
+	echo "  PKGCONFIG                   pkg-config binary"
+	echo
+	echo "Report bugs to: $2"
+	exit 0
+}
+
+show_version() {
+	echo "$1 version $2"
+	echo "Originally written by $3"
+	exit 0
+}
+
+check_parameters() {
+	while : ; do
+		[ -z "$1" ] && break
+		parse_options $1
+		shift
+	done
+
+	if [ "$UNKNOWN_FLAG" = "1" ] ; then
+		echo
+	fi
+}
+
+parse_options() {
+	flag=`echo $1 | cut -d = -f 1`
+	value=`echo $1 | awk 'BEGIN{FS="=";}{print $2}'`
+
+	case $flag in
+		"-h"|"--help")
+			show_usage "$NAME" "$AUTHOR"; ;;
+		"-v"|"--version")
+			show_version "$NAME" "$VERSION" "$AUTHOR"; ;;
+		"--debug")
+			DEBUG="yes"; ;;
+		"--colored")
+			COLOR="yes"; ;;
+		"--prefix")
+			PREFIX="$value"; ;;
+		"CC")
+			CC="$value"; ;;
+		"CFLAGS")
+			CFLAGS="$value"; ;;
+		"LDFLAGS")
+			LDFLAGS="$value"; ;;
+		"INSTALL")
+			INSTALL="$value"; ;;
+		"PKGCONFIG")
+			PKGCONFIG="$value"; ;;
+		"VALAC")
+			VALAC="$value"; ;;
+		*)
+			extra_options $flag $value
+			if [ "$CMD" != "not-available" ] ; then
+				eval "$CMD"
+			else
+				echo "WARNING: unknown flag '$1'." >&2
+				UNKNOWN_FLAG=1
+			fi;;
+	esac
+}
+
+check_prg_version() {
+	printf " %-34s" "$1..."
+
+	if [ "$4" = "disable" ] ; then
+		echo "disabled"
+		return 0
+	fi
+
+	if [ "$3" = "" ] ; then
+		echo "missing"
+		if [ "$4" != "force" ] ; then
+			return 0
+		else
+			exit 1
+		fi
+	fi
+
+	echo "$3"
+
+	awk "$awk_verscmp" v1="$2" v2="$3" /dev/null
+	if [ "$?" = "2" ] ; then
+		echo "Please install at least $2 to use this feature"
+		if [ "$4" != "force" ] ; then
+			return 0
+		else
+			exit 1
+		fi
+	fi
+
+	return 1
+}
+
+check_pkg_version() {
+	printf " %-34s" "$1..."
+
+	if [ "$3" = "disable" ] ; then
+		echo "disabled"
+		return 0
+	fi
+
+	pkg-config --exists $1
+	if [ "$?" = "1" ] ; then
+		echo "missing"
+		if [ "$3" != "force" ] ; then
+			return 0
+		else
+			exit 1
+		fi
+	fi
+
+	echo `pkg-config --modversion $1`
+
+	pkg-config --atleast-version "$2" "$1"
+	if [ "$?" = "1" ] ; then
+		echo "Please install at least $2"
+		if [ "$3" != "force" ] ; then
+			return 0
+		else
+			exit 1
+		fi
+	fi
+
+	return 1
+}
+
+check_font() {
+	name="$1"
+
+	printf " %-34s" "$1..."
+
+	for file in /etc/fonts/conf.avail/*; do
+		grep -q "$name" "$file"
+		if [ $? -eq 0 ] ; then
+			echo "available"
+			return 1
+		fi
+	done
+
+	echo "MISSING"
+
+	if [ "$2" != "force" ] ; then
+		return 0
+	else
+		exit 1
+	fi
+}
+
+check_compiler() {
+	printf "Checking compiler...               "
+	echo 'main(){}' > test.c
+	${CC} ${CFLAGS} ${LDFLAGS} -o a.out test.c >/dev/null 2>&1
+	if [ ! $? = 0 ]; then
+		echo failed
+		exit 1
+	else
+		echo works
+	fi
+	rm -f a.out test.c
+}
+
+check_install() {
+	printf "Checking install...                "
+	if [ -x `which ${INSTALL}` ] ; then
+		echo available
+	else
+		echo missing
+		exit 1
+	fi
+}
+
+check_pkgconfig() {
+	printf "Checking pkg-config...             "
+	if [ -x `which ${PKGCONFIG}` ] ; then
+		echo `${PKGCONFIG} --version`
+	else
+		echo missing
+		exit 1
+	fi
+}
+
+create_config() {
+	FILE=$1
+	shift
+	printf "Creating %-26s" $FILE...
+	rm -f $FILE && touch $FILE
+
+	# Some standard variables
+	echo DEBUG=$DEBUG >> $FILE
+	echo COLOR=$COLOR >> $FILE
+	echo CC=$CC >> $FILE
+	echo CFLAGS=$CFLAGS >> $FILE
+	echo LDFLAGS=$LDFLAGS >> $FILE
+	echo PREFIX=$PREFIX >> $FILE
+	echo PKGCONFIG=$PKGCONFIG >> $FILE
+	echo INSTALL=$INSTALL >> $FILE
+	echo INSTALL_DATA=$INSTALL_DATA >> $FILE
+	echo INSTALL_PROGRAM=$INSTALL_PROGRAM >> $FILE
+	echo INSTALL_DIR=$INSTALL_DIR >> $FILE
+
+	for option in $@ ; do
+		value=`echo \\$$option`
+		value=`eval echo $value`
+		echo $option=$value >> $FILE
+	done
+
+	echo "done"
+}
+
+create_header() {
+	FILE=$1
+	shift
+	printf "Creating %-26s" $FILE...
+	rm -f $FILE && touch $FILE
+
+	for option in $@ ; do
+		value=`echo \\$$option`
+		value=`eval echo $value`
+		echo "#define $option \"$value\"" >> $FILE
+	done
+
+	echo "done"
+}
+
+final_report() {
+	echo
+	echo "Final Report:"
+	for option in $@ ; do
+		value=`echo \\$$option`
+		value=`eval echo $value`
+		printf "  %-10s = %s\n" $option $value
+	done
+}