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Presently that only means defining a flag for this option. 672AC_DEFUN([_AM_SET_OPTION], 673[m4_define(_AM_MANGLE_OPTION([$1]), 1)]) 674 675# _AM_SET_OPTIONS(OPTIONS) 676# ---------------------------------- 677# OPTIONS is a space-separated list of Automake options. 678AC_DEFUN([_AM_SET_OPTIONS], 679[AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) 680 681# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) 682# ------------------------------------------- 683# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. 684AC_DEFUN([_AM_IF_OPTION], 685[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) 686 687# Check to make sure that the build environment is sane. -*- Autoconf -*- 688 689# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005 690# Free Software Foundation, Inc. 691# 692# This file is free software; the Free Software Foundation 693# gives unlimited permission to copy and/or distribute it, 694# with or without modifications, as long as this notice is preserved. 695 696# serial 4 697 698# AM_SANITY_CHECK 699# --------------- 700AC_DEFUN([AM_SANITY_CHECK], 701[AC_MSG_CHECKING([whether build environment is sane]) 702# Just in case 703sleep 1 704echo timestamp > conftest.file 705# Do `set' in a subshell so we don't clobber the current shell's 706# arguments. Must try -L first in case configure is actually a 707# symlink; some systems play weird games with the mod time of symlinks 708# (eg FreeBSD returns the mod time of the symlink's containing 709# directory). 710if ( 711 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null` 712 if test "$[*]" = "X"; then 713 # -L didn't work. 714 set X `ls -t $srcdir/configure conftest.file` 715 fi 716 rm -f conftest.file 717 if test "$[*]" != "X $srcdir/configure conftest.file" \ 718 && test "$[*]" != "X conftest.file $srcdir/configure"; then 719 720 # If neither matched, then we have a broken ls. This can happen 721 # if, for instance, CONFIG_SHELL is bash and it inherits a 722 # broken ls alias from the environment. This has actually 723 # happened. Such a system could not be considered "sane". 724 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 725alias in your environment]) 726 fi 727 728 test "$[2]" = conftest.file 729 ) 730then 731 # Ok. 732 : 733else 734 AC_MSG_ERROR([newly created file is older than distributed files! 735Check your system clock]) 736fi 737AC_MSG_RESULT(yes)]) 738 739# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. 740# 741# This file is free software; the Free Software Foundation 742# gives unlimited permission to copy and/or distribute it, 743# with or without modifications, as long as this notice is preserved. 744 745# AM_PROG_INSTALL_STRIP 746# --------------------- 747# One issue with vendor `install' (even GNU) is that you can't 748# specify the program used to strip binaries. 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