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