root/trunk/m4/lib-ld.m4

Revision 2, 3.3 kB (checked in by jordi, 2 years ago)

Added the initial source layout with autotools and gettext support. Still no code for the project.

Line 
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 ])
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