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kc3-lang/automake/m4/init.m4

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  • Author : Paul Eggert
    Date : 2024-01-01 11:29:06
    Hash : b80b5c47
    Message : maint: make update-copyright

  • m4/init.m4
  • # Do all the work for Automake.                             -*- Autoconf -*-
    
    # Copyright (C) 1996-2024 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.
    
    # This macro actually does too much.  Some checks are only needed if
    # your package does certain things.  But this isn't really a big deal.
    
    dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
    m4_define([AC_PROG_CC],
    m4_defn([AC_PROG_CC])
    [_AM_PROG_CC_C_O
    ])
    
    # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
    # AM_INIT_AUTOMAKE([OPTIONS])
    # -----------------------------------------------
    # The call with PACKAGE and VERSION arguments is the old style
    # call (pre autoconf-2.50), which is being phased out.  PACKAGE
    # and VERSION should now be passed to AC_INIT and removed from
    # the call to AM_INIT_AUTOMAKE.
    # We support both call styles for the transition.  After
    # the next Automake release, Autoconf can make the AC_INIT
    # arguments mandatory, and then we can depend on a new Autoconf
    # release and drop the old call support.
    AC_DEFUN([AM_INIT_AUTOMAKE],
    [AC_PREREQ([2.65])dnl
    m4_ifdef([_$0_ALREADY_INIT],
      [m4_fatal([$0 expanded multiple times
    ]m4_defn([_$0_ALREADY_INIT]))],
      [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
    dnl Autoconf wants to disallow AM_ names.  We explicitly allow
    dnl the ones we care about.
    m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
    AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
    AC_REQUIRE([AC_PROG_INSTALL])dnl
    if test "`cd $srcdir && pwd`" != "`pwd`"; then
      # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
      # is not polluted with repeated "-I."
      AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
      # test to see if srcdir already configured
      if test -f $srcdir/config.status; then
        AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
      fi
    fi
    
    # test whether we have cygpath
    if test -z "$CYGPATH_W"; then
      if (cygpath --version) >/dev/null 2>/dev/null; then
        CYGPATH_W='cygpath -w'
      else
        CYGPATH_W=echo
      fi
    fi
    AC_SUBST([CYGPATH_W])
    
    # Define the identity of the package.
    dnl Distinguish between old-style and new-style calls.
    m4_ifval([$2],
    [AC_DIAGNOSE([obsolete],
                 [$0: two- and three-arguments forms are deprecated.])
    m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
     AC_SUBST([PACKAGE], [$1])dnl
     AC_SUBST([VERSION], [$2])],
    [_AM_SET_OPTIONS([$1])dnl
    dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
    m4_if(
      m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
      [ok:ok],,
      [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
     AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
     AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
    
    _AM_IF_OPTION([no-define],,
    [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
     AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
    
    # Some tools Automake needs.
    AC_REQUIRE([AM_SANITY_CHECK])dnl
    AC_REQUIRE([AC_ARG_PROGRAM])dnl
    AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
    AM_MISSING_PROG([AUTOCONF], [autoconf])
    AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
    AM_MISSING_PROG([AUTOHEADER], [autoheader])
    AM_MISSING_PROG([MAKEINFO], [makeinfo])
    AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
    AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
    AC_REQUIRE([AC_PROG_MKDIR_P])dnl
    # For better backward compatibility.  To be removed once Automake 1.9.x
    # dies out for good.  For more background, see:
    # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
    # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
    AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
    # We need awk for the "check" target (and possibly the TAP driver).  The
    # system "awk" is bad on some platforms.
    AC_REQUIRE([AC_PROG_AWK])dnl
    AC_REQUIRE([AC_PROG_MAKE_SET])dnl
    AC_REQUIRE([AM_SET_LEADING_DOT])dnl
    _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
    	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
    			     [_AM_PROG_TAR([v7])])])
    _AM_IF_OPTION([no-dependencies],,
    [AC_PROVIDE_IFELSE([AC_PROG_CC],
    		  [_AM_DEPENDENCIES([CC])],
    		  [m4_define([AC_PROG_CC],
    			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
    AC_PROVIDE_IFELSE([AC_PROG_CXX],
    		  [_AM_DEPENDENCIES([CXX])],
    		  [m4_define([AC_PROG_CXX],
    			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
    AC_PROVIDE_IFELSE([AC_PROG_OBJC],
    		  [_AM_DEPENDENCIES([OBJC])],
    		  [m4_define([AC_PROG_OBJC],
    			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
    AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
    		  [_AM_DEPENDENCIES([OBJCXX])],
    		  [m4_define([AC_PROG_OBJCXX],
    			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
    ])
    # Variables for tags utilities; see am/tags.am
    if test -z "$CTAGS"; then
      CTAGS=ctags
    fi
    AC_SUBST([CTAGS])
    if test -z "$ETAGS"; then
      ETAGS=etags
    fi
    AC_SUBST([ETAGS])
    if test -z "$CSCOPE"; then
      CSCOPE=cscope
    fi
    AC_SUBST([CSCOPE])
    
    AC_REQUIRE([_AM_SILENT_RULES])dnl
    dnl The testsuite driver may need to know about EXEEXT, so add the
    dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
    dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
    AC_CONFIG_COMMANDS_PRE(dnl
    [m4_provide_if([_AM_COMPILER_EXEEXT],
      [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
    
    AC_REQUIRE([_AM_PROG_RM_F])
    AC_REQUIRE([_AM_PROG_XARGS_N])
    
    dnl The trailing newline in this macro's definition is deliberate, for
    dnl backward compatibility and to allow trailing 'dnl'-style comments
    dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
    ])
    
    dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
    dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
    dnl mangled by Autoconf and run in a shell conditional statement.
    m4_define([_AC_COMPILER_EXEEXT],
    m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
    
    # When config.status generates a header, we must update the stamp-h file.
    # This file resides in the same directory as the config header
    # that is generated.  The stamp files are numbered to have different names.
    
    # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
    # loop where config.status creates the headers, so we can generate
    # our stamp files there.
    AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
    [# Compute $1's index in $config_headers.
    _am_arg=$1
    _am_stamp_count=1
    for _am_header in $config_headers :; do
      case $_am_header in
        $_am_arg | $_am_arg:* )
          break ;;
        * )
          _am_stamp_count=`expr $_am_stamp_count + 1` ;;
      esac
    done
    echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])