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Member "gcal-4.1/m4/lib-ld.m4" (22 Jan 2017, 3683 Bytes) of package /linux/misc/gcal-4.1.tar.gz:


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    1 # lib-ld.m4 serial 6
    2 dnl Copyright (C) 1996-2003, 2009-2017 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/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
    9 dnl collision with libtool.m4.
   10 
   11 dnl From libtool-2.4. 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 ($LD) is GNU ld], [acl_cv_prog_gnu_ld],
   14 [# I'd rather use --version here, but apparently some GNU lds only accept -v.
   15 case `$LD -v 2>&1 </dev/null` in
   16 *GNU* | *'with BFD'*)
   17   acl_cv_prog_gnu_ld=yes
   18   ;;
   19 *)
   20   acl_cv_prog_gnu_ld=no
   21   ;;
   22 esac])
   23 with_gnu_ld=$acl_cv_prog_gnu_ld
   24 ])
   25 
   26 dnl From libtool-2.4. Sets the variable LD.
   27 AC_DEFUN([AC_LIB_PROG_LD],
   28 [AC_REQUIRE([AC_PROG_CC])dnl
   29 AC_REQUIRE([AC_CANONICAL_HOST])dnl
   30 
   31 AC_ARG_WITH([gnu-ld],
   32     [AS_HELP_STRING([--with-gnu-ld],
   33         [assume the C compiler uses GNU ld [default=no]])],
   34     [test "$withval" = no || with_gnu_ld=yes],
   35     [with_gnu_ld=no])dnl
   36 
   37 # Prepare PATH_SEPARATOR.
   38 # The user is always right.
   39 if test "${PATH_SEPARATOR+set}" != set; then
   40   # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
   41   # contains only /bin. Note that ksh looks also at the FPATH variable,
   42   # so we have to set that as well for the test.
   43   PATH_SEPARATOR=:
   44   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
   45     && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
   46            || PATH_SEPARATOR=';'
   47        }
   48 fi
   49 
   50 ac_prog=ld
   51 if test "$GCC" = yes; then
   52   # Check if gcc -print-prog-name=ld gives a path.
   53   AC_MSG_CHECKING([for ld used by $CC])
   54   case $host in
   55   *-*-mingw*)
   56     # gcc leaves a trailing carriage return which upsets mingw
   57     ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
   58   *)
   59     ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
   60   esac
   61   case $ac_prog in
   62     # Accept absolute paths.
   63     [[\\/]]* | ?:[[\\/]]*)
   64       re_direlt='/[[^/]][[^/]]*/\.\./'
   65       # Canonicalize the pathname of ld
   66       ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'`
   67       while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do
   68         ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
   69       done
   70       test -z "$LD" && LD="$ac_prog"
   71       ;;
   72   "")
   73     # If it fails, then pretend we aren't using GCC.
   74     ac_prog=ld
   75     ;;
   76   *)
   77     # If it is relative, then search for the first ld in PATH.
   78     with_gnu_ld=unknown
   79     ;;
   80   esac
   81 elif test "$with_gnu_ld" = yes; then
   82   AC_MSG_CHECKING([for GNU ld])
   83 else
   84   AC_MSG_CHECKING([for non-GNU ld])
   85 fi
   86 AC_CACHE_VAL([acl_cv_path_LD],
   87 [if test -z "$LD"; then
   88   acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
   89   for ac_dir in $PATH; do
   90     IFS="$acl_save_ifs"
   91     test -z "$ac_dir" && ac_dir=.
   92     if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
   93       acl_cv_path_LD="$ac_dir/$ac_prog"
   94       # Check to see if the program is GNU ld.  I'd rather use --version,
   95       # but apparently some variants of GNU ld only accept -v.
   96       # Break only if it was the GNU/non-GNU ld that we prefer.
   97       case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
   98       *GNU* | *'with BFD'*)
   99         test "$with_gnu_ld" != no && break
  100         ;;
  101       *)
  102         test "$with_gnu_ld" != yes && break
  103         ;;
  104       esac
  105     fi
  106   done
  107   IFS="$acl_save_ifs"
  108 else
  109   acl_cv_path_LD="$LD" # Let the user override the test with a path.
  110 fi])
  111 LD="$acl_cv_path_LD"
  112 if test -n "$LD"; then
  113   AC_MSG_RESULT([$LD])
  114 else
  115   AC_MSG_RESULT([no])
  116 fi
  117 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
  118 AC_LIB_PROG_LD_GNU
  119 ])