initial configure script checking build dependencies

1 files changed, 140 insertions, 0 deletions

diff --git a/configure b/configure
new file mode 100755
index 0000000..e96745c
--- /dev/null
+++ b/configure
@@ -0,0 +1,140 @@
+#!/bin/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
+  }
+'
+
+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" "$1"
+	fi
+
+	result=$?
+
+	if [ $result = 1 ] ; then
+		echo "MISSING"
+	else
+		echo "     OK"
+	fi
+
+	return $?
+}
+
+check_dependencies() {
+	echo "Checking dependencies:"
+	errors=0
+	check_prg_version valac				0.16		`valac --api-version`
+	errors=`expr $errors + 1`
+	check_pkg_config  ncursesw			5.9
+	errors=`expr $errors + 1`
+	check_pkg_config  gdk-2.0			2.24
+	errors=`expr $errors + 1`
+	check_pkg_config  gee-1.0			0.6
+	errors=`expr $errors + 1`
+	check_pkg_config  gio-2.0			2.36
+	errors=`expr $errors + 1`
+	check_pkg_config  gmime-2.6			2.6.10
+	errors=`expr $errors + 1`
+	check_prg_version gpgme				1.2			`gpgme-config --version`
+	errors=`expr $errors + 1`
+	check_pkg_config  gstreamer-0.10	0.10.36
+	errors=`expr $errors + 1`
+	check_pkg_config  libarchive		3.0
+	errors=`expr $errors + 1`
+	check_prg_version libesmtp			0.1			`libesmtp-config --version`
+	errors=`expr $errors + 1`
+	check_pkg_config  librsvg-2.0		2.36
+	errors=`expr $errors + 1`
+	check_pkg_config  libsoup-2.4		2.38
+	errors=`expr $errors + 1`
+	check_pkg_config  pangocairo		1.32
+	errors=`expr $errors + 1`
+	check_pkg_config  sqlite3			3.7
+	errors=`expr $errors + 1`
+
+	if [ $errors -ne 0 ] ; then
+		echo "Aborting due to errors!"
+		exit 1;
+	fi
+}
+
+check_dependencies