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Member "automake-1.16.3/m4/vala.m4" (19 Nov 2020, 1884 Bytes) of package /linux/misc/automake-1.16.3.tar.xz:

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    1 # Autoconf support for the Vala compiler
    2 
    3 # Copyright (C) 2008-2020 Free Software Foundation, Inc.
    4 #
    5 # This file is free software; the Free Software Foundation
    6 # gives unlimited permission to copy and/or distribute it,
    7 # with or without modifications, as long as this notice is preserved.
    8 
    9 # Search for a Vala compiler in PATH.  If it is found, the variable VALAC is
   10 # set to point to it.  Otherwise, it is simply set to 'valac'.  This macro
   11 # takes three optional arguments.  The first argument, if present, is the
   12 # minimum version of the Vala API required to compile this package.  For Vala
   13 # releases, this is the same as the major and minor release number; e.g., when
   14 # `valac --version' reports 0.48.7, `valac --api-version' reports 0.48.  If a
   15 # compiler is found and satisfies MINIMUM-VERSION, then ACTION-IF-FOUND is run
   16 # (this defaults to do nothing).  Otherwise, ACTION-IF-NOT-FOUND is run.  If
   17 # ACTION-IF-NOT-FOUND is not specified, the default value is to print a
   18 # warning in case no compiler is found, or if a too-old version of the
   19 # compiler is found.
   20 #
   21 # AM_PROG_VALAC([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
   22 # --------------------------------------------------------------------------
   23 AC_DEFUN([AM_PROG_VALAC],
   24   [AC_PATH_PROG([VALAC], [valac], [valac])
   25    AS_IF([test "$VALAC" != valac && test -n "$1"],
   26       [AC_MSG_CHECKING([whether $VALAC supports at least API version $1])
   27        am__vala_version=`$VALAC --api-version`
   28        AS_VERSION_COMPARE([$1], ["$am__vala_version"],
   29          [AC_MSG_RESULT([yes])],
   30          [AC_MSG_RESULT([yes])],
   31          [AC_MSG_RESULT([no])
   32           VALAC=valac])])
   33     if test "$VALAC" = valac; then
   34       m4_default([$3],
   35         [AC_MSG_WARN([Vala compiler not found or too old])
   36          AC_MSG_WARN([you will not be able to compile Vala source files])])
   37     else
   38       m4_default([$2], [:])
   39     fi])