aclocal.m4

   1 dnl We define the macro GLIBC_PROVIDES to do an AC_PROVIDE for each macro
   2 dnl which appears in configure.in before the sysdep configure scripts are run.
   3 dnl Each sysdep configure.in does GLIBC_PROVIDES first, to avoid any
   4 dnl AC_REQUIREs or AC_BEFOREs duplicating their code.
   5 dnl
   6 define([GLIBC_PROVIDES], [dnl
   7 AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
   8 AC_PROVIDE([AC_CONFIG_SUBDIRS])dnl
   9 AC_PROVIDE([_AS_ECHO_N_PREPARE])dnl
  10 AC_PROVIDE([_AS_ECHO_PREPARE])dnl
  11 AC_PROVIDE([_AS_CR_PREPARE])dnl
  12 AC_PROVIDE([_AS_TR_SH_PREPARE])dnl
  13 AC_PROVIDE([AC_PROG_INSTALL])dnl
  14 AC_PROVIDE([AC_PROG_RANLIB])dnl
  15 AC_PROVIDE([AC_PROG_CC])dnl
  16 AC_PROVIDE([AC_PROG_CPP])dnl
  17 AC_PROVIDE([_AS_PATH_SEPARATOR_PREPARE])dnl
  18 AC_PROVIDE([_AS_TEST_PREPARE])dnl
  19 define([AS_MESSAGE_LOG_FD],5)dnl
  20 define([AS_MESSAGE_FD],6)dnl
  21 dnl Ripped out of AS_INIT, which does more cruft we do not want.
  22 m4_wrap([m4_divert_pop([BODY])[]])
  23 m4_divert_push([BODY])[]dnl
  24 dnl End of ripped out of AS_INIT.
  25 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  26 define([_AC_LANG], [C])dnl
  27 ])dnl
  28 dnl
  29 dnl Check for a symbol
  30 dnl
  31 AC_DEFUN([AC_CHECK_SYMBOL], [dnl
  32 AC_MSG_CHECKING(for $1)
  33 AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
  34 AC_TRY_LINK(,
  35 changequote(,)dnl
  36 extern char *$1[]; puts(*$1);,
  37 changequote([,])dnl
  38             ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
  39 if test "$ac_cv_check_symbol_$1" = yes; then
  40 changequote(,)dnl
  41   ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
  42 changequote([,])dnl
  43   AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
  44 fi
  45 AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl
  46 dnl
  47
  48 dnl Locate a program and check that its version is acceptable.
  49 dnl AC_PROG_CHECK_VER(var, namelist, version-switch,
  50 dnl                   [version-extract-regexp], version-glob [, do-if-fail])
  51 AC_DEFUN([AC_CHECK_PROG_VER],
  52 [AC_CHECK_PROGS([$1], [$2])
  53 if test -z "[$]$1"; then
  54   ac_verc_fail=yes
  55 else
  56   # Found it, now check the version.
  57   AC_MSG_CHECKING([version of [$]$1])
  58 changequote(<<,>>)dnl
  59   ac_prog_version=`<<$>>$1 $3 2>&1 ifelse(<<$4>>,,,
  60                    <<| sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'>>)`
  61   case $ac_prog_version in
  62     '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
  63     <<$5>>)
  64 changequote([,])dnl
  65        ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
  66     *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
  67
  68   esac
  69   AC_MSG_RESULT([$ac_prog_version])
  70 fi
  71 ifelse([$6],,,
  72 [if test $ac_verc_fail = yes; then
  73   $6
  74 fi])
  75 ])
  76
  77 dnl These modifications are to allow for an empty cross compiler tree.
  78 define([_AC_COMPILER_EXEEXT], [EXEEXT=
  79 ])
  80
  81 AC_DEFUN([LIBC_PROG_FOO_GNU],
  82 [# Most GNU programs take a -v and spit out some text including
  83 # the word 'GNU'.  Some try to read stdin, so give them /dev/null.
  84 if $1 -o conftest -v </dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
  85   $2
  86 else
  87   $3
  88 fi
  89 rm -fr contest*])
  90
  91 AC_DEFUN([LIBC_PROG_BINUTILS],
  92 [# Was a --with-binutils option given?
  93 if test -n "$path_binutils"; then
  94     # Make absolute; ensure a single trailing slash.
  95     path_binutils=`(cd $path_binutils; pwd) | sed 's%/*$%/%'`
  96     CC="$CC -B$path_binutils"
  97 fi
  98 AS=`$CC -print-prog-name=as`
  99 LD=`$CC -print-prog-name=ld`
 100 AR=`$CC -print-prog-name=ar`
 101 AC_SUBST(AR)
 102 OBJDUMP=`$CC -print-prog-name=objdump`
 103 AC_SUBST(OBJDUMP)
 104
 105 # ranlib has to be treated a bit differently since it might not exist at all.
 106 ac_ranlib=`$CC -print-prog-name=ranlib`
 107 if test "x$ac_ranlib" = xranlib; then
 108 # This extra check has to happen since gcc simply echos the parameter in
 109 # case it cannot find the value in its own directories.
 110 AC_CHECK_TOOL(RANLIB, ranlib, :)
 111 else
 112   RANLIB=$ac_ranlib
 113 fi
 114 AC_SUBST(RANLIB)
 115
 116 # Determine whether we are using GNU binutils.
 117 AC_CACHE_CHECK(whether $AS is GNU as, libc_cv_prog_as_gnu,
 118 [LIBC_PROG_FOO_GNU($AS, libc_cv_prog_as_gnu=yes, libc_cv_prog_as_gnu=no)])
 119 rm -f a.out
 120 gnu_as=$libc_cv_prog_as_gnu
 121
 122 AC_CACHE_CHECK(whether $LD is GNU ld, libc_cv_prog_ld_gnu,
 123 [LIBC_PROG_FOO_GNU($LD, libc_cv_prog_ld_gnu=yes, libc_cv_prog_ld_gnu=no)])
 124 gnu_ld=$libc_cv_prog_ld_gnu
 125 ])