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Distribute vala.m4 for a while (before Debian Squeeze is out)

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commit d4f447aac232ccaf81598aba12654aa1964c230e 1 parent ecfd9fb
@piotras piotras authored
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29 m4/vala.m4
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+# Autoconf support for the Vala compiler
+
+# Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# Check whether the Vala compiler exists in `PATH'. If it is found, the
+# variable VALAC is set. Optionally a minimum release number of the
+# compiler can be requested.
+#
+# AM_PROG_VALAC([MINIMUM-VERSION])
+# --------------------------------
+AC_DEFUN([AM_PROG_VALAC],
+[AC_PATH_PROG([VALAC], [valac], [])
+ AS_IF([test -z "$VALAC"],
+ [AC_MSG_WARN([No Vala compiler found. You will not be able to compile .vala source files.])],
+ [AS_IF([test -n "$1"],
+ [AC_MSG_CHECKING([$VALAC is at least version $1])
+ am__vala_version=`$VALAC --version | sed 's/Vala *//'`
+ AS_VERSION_COMPARE([$1], ["$am__vala_version"],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([Vala $1 not found.])])])])
+])
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