X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=build%2Ffunctions.sh;fp=build%2Ffunctions.sh;h=c330d939f44826723a84816a4739d3b8a4c74a70;hp=0000000000000000000000000000000000000000;hb=6b0a0d0efafe34d48ab344fca3b479553bd4e62c;hpb=85783316365181491a3e3c0c63659972477cebba

diff --git a/build/functions.sh b/build/functions.sh
new file mode 100755
index 0000000..c330d93
--- /dev/null
+++ b/build/functions.sh
@@ -0,0 +1,93 @@
+
+
+# Print error message to stderr and exit.  The error message can either be
+# given as parameters or from stdin.
+die()
+{
+	echo -n "fatal: " >/dev/stderr
+	if [ "x$*" != x ]
+	then
+		echo $* >/dev/stderr
+	else
+		while read line;
+		do
+			echo $line >/dev/stderr
+		done
+	fi
+	exit 1
+}
+
+# Parse an argument from an option in the form --option=argument.
+parse_argument()
+{
+	echo $(echo $2 | sed -e "s/--$1=\\(.*\\)$/\\1/")
+	return $?
+}
+
+# Insert all the escapes necessary to correctly quote a string for use in a
+# shell command.
+quote_string()
+{
+	for arg in "$@"
+	do
+		echo $1 | sed -e "s/'/\\'/g" \
+					  -e 's/"/\\"/g' \
+					  -e 's/|/\\|/g' \
+					  -e 's/&/\\&/g' \
+					  -e 's/;/\\;/g' \
+					  -e 's/;/\\;/g' \
+					  -e 's/(/\\(/g' \
+					  -e 's/)/\\)/g' \
+					  -e 's/</\\</g' \
+					  -e 's/>/\\>/g' \
+					  -e 's/ /\\ /g' \
+					  -e "s/\t/\\\t/g" \
+					  -e 's/\$/\\\$/g'
+	done
+}
+
+# Add a definition to the compiler flags.  The optional second parameter is
+# the unquoted value.
+define()
+{
+	if test "x$2" = x
+	then
+		defines="$defines -D$1"
+	else
+		defines="$defines -D$1=$2"
+	fi
+}
+
+# Add a definition to the compiler flags with a quoted value.
+define_string()
+{
+	arg=$(quote_string "$2")
+	define "$1" "\\\"$arg\\\""
+}
+
+undefine()
+{
+	for arg in "$@"
+	do
+		defines="$defines -U$arg"
+	done
+}
+
+is_defined()
+{
+	for arg in "$@"
+	do
+		echo "$defines" | grep -e "-D$arg" 2>&1 >/dev/null || return 1
+	done
+	return 0
+}
+
+is_undefined()
+{
+	for arg in "$@"
+	do
+		echo "$defines" | grep -e "-U$arg" 2>&1 >/dev/null || return 1
+	done
+	return 0
+}
+