Return to lib-ld.m4 CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / confuse / m4

confuse 2.7

    1: # lib-ld.m4 serial 3 (gettext-0.13)
    2: dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
    3: dnl This file is free software; the Free Software Foundation
    4: dnl gives unlimited permission to copy and/or distribute it,
    5: dnl with or without modifications, as long as this notice is preserved.
    6: 
    7: dnl Subroutines of libtool.m4,
    8: dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
    9: dnl with libtool.m4.
   10: 
   11: dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
   12: AC_DEFUN([AC_LIB_PROG_LD_GNU],
   13: [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
   14: [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
   15: case `$LD -v 2>&1 </dev/null` in
   16: *GNU* | *'with BFD'*)
   17:   acl_cv_prog_gnu_ld=yes ;;
   18: *)
   19:   acl_cv_prog_gnu_ld=no ;;
   20: esac])
   21: with_gnu_ld=$acl_cv_prog_gnu_ld
   22: ])
   23: 
   24: dnl From libtool-1.4. Sets the variable LD.
   25: AC_DEFUN([AC_LIB_PROG_LD],
   26: [AC_ARG_WITH(gnu-ld,
   27: [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
   28: test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
   29: AC_REQUIRE([AC_PROG_CC])dnl
   30: AC_REQUIRE([AC_CANONICAL_HOST])dnl
   31: # Prepare PATH_SEPARATOR.
   32: # The user is always right.
   33: if test "${PATH_SEPARATOR+set}" != set; then
   34:   echo "#! /bin/sh" >conf$$.sh
   35:   echo  "exit 0"   >>conf$$.sh
   36:   chmod +x conf$$.sh
   37:   if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
   38:     PATH_SEPARATOR=';'
   39:   else
   40:     PATH_SEPARATOR=:
   41:   fi
   42:   rm -f conf$$.sh
   43: fi
   44: ac_prog=ld
   45: if test "$GCC" = yes; then
   46:   # Check if gcc -print-prog-name=ld gives a path.
   47:   AC_MSG_CHECKING([for ld used by GCC])
   48:   case $host in
   49:   *-*-mingw*)
   50:     # gcc leaves a trailing carriage return which upsets mingw
   51:     ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
   52:   *)
   53:     ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
   54:   esac
   55:   case $ac_prog in
   56:     # Accept absolute paths.
   57:     [[\\/]* | [A-Za-z]:[\\/]*)]
   58:       [re_direlt='/[^/][^/]*/\.\./']
   59:       # Canonicalize the path of ld
   60:       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
   61:       while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
   62: 	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
   63:       done
   64:       test -z "$LD" && LD="$ac_prog"
   65:       ;;
   66:   "")
   67:     # If it fails, then pretend we aren't using GCC.
   68:     ac_prog=ld
   69:     ;;
   70:   *)
   71:     # If it is relative, then search for the first ld in PATH.
   72:     with_gnu_ld=unknown
   73:     ;;
   74:   esac
   75: elif test "$with_gnu_ld" = yes; then
   76:   AC_MSG_CHECKING([for GNU ld])
   77: else
   78:   AC_MSG_CHECKING([for non-GNU ld])
   79: fi
   80: AC_CACHE_VAL(acl_cv_path_LD,
   81: [if test -z "$LD"; then
   82:   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
   83:   for ac_dir in $PATH; do
   84:     test -z "$ac_dir" && ac_dir=.
   85:     if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
   86:       acl_cv_path_LD="$ac_dir/$ac_prog"
   87:       # Check to see if the program is GNU ld.  I'd rather use --version,
   88:       # but apparently some GNU ld's only accept -v.
   89:       # Break only if it was the GNU/non-GNU ld that we prefer.
   90:       case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
   91:       *GNU* | *'with BFD'*)
   92: 	test "$with_gnu_ld" != no && break ;;
   93:       *)
   94: 	test "$with_gnu_ld" != yes && break ;;
   95:       esac
   96:     fi
   97:   done
   98:   IFS="$ac_save_ifs"
   99: else
  100:   acl_cv_path_LD="$LD" # Let the user override the test with a path.
  101: fi])
  102: LD="$acl_cv_path_LD"
  103: if test -n "$LD"; then
  104:   AC_MSG_RESULT($LD)
  105: else
  106:   AC_MSG_RESULT(no)
  107: fi
  108: test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
  109: AC_LIB_PROG_LD_GNU
  110: ])