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5a07c6d2 CW |
1 | # lib-ld.m4 serial 1 (gettext-0.11) |
2 | dnl Copyright (C) 1996-2002 Free Software Foundation, Inc. | |
3 | dnl This file is free software, distributed under the terms of the GNU | |
4 | dnl General Public License. As a special exception to the GNU General | |
5 | dnl Public License, this file may be distributed as part of a program | |
6 | dnl that contains a configuration script generated by Autoconf, under | |
7 | dnl the same distribution terms as the rest of that program. | |
8 | ||
9 | dnl Subroutines of libtool.m4, | |
10 | dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision | |
11 | dnl with libtool.m4. | |
12 | ||
13 | dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no. | |
14 | AC_DEFUN([AC_LIB_PROG_LD_GNU], | |
15 | [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld, | |
16 | [# I'd rather use --version here, but apparently some GNU ld's only accept -v. | |
17 | if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then | |
18 | acl_cv_prog_gnu_ld=yes | |
19 | else | |
20 | acl_cv_prog_gnu_ld=no | |
21 | fi]) | |
22 | with_gnu_ld=$acl_cv_prog_gnu_ld | |
23 | ]) | |
24 | ||
25 | dnl From libtool-1.4. Sets the variable LD. | |
26 | AC_DEFUN([AC_LIB_PROG_LD], | |
27 | [AC_ARG_WITH(gnu-ld, | |
28 | [ --with-gnu-ld assume the C compiler uses GNU ld [default=no]], | |
29 | test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no) | |
30 | AC_REQUIRE([AC_PROG_CC])dnl | |
31 | AC_REQUIRE([AC_CANONICAL_HOST])dnl | |
32 | ac_prog=ld | |
33 | if test "$GCC" = yes; then | |
34 | # Check if gcc -print-prog-name=ld gives a path. | |
35 | AC_MSG_CHECKING([for ld used by GCC]) | |
36 | case $host in | |
37 | *-*-mingw*) | |
38 | # gcc leaves a trailing carriage return which upsets mingw | |
39 | ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; | |
40 | *) | |
41 | ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; | |
42 | esac | |
43 | case $ac_prog in | |
44 | # Accept absolute paths. | |
45 | [[\\/]* | [A-Za-z]:[\\/]*)] | |
46 | [re_direlt='/[^/][^/]*/\.\./'] | |
47 | # Canonicalize the path of ld | |
48 | ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'` | |
49 | while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do | |
50 | ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` | |
51 | done | |
52 | test -z "$LD" && LD="$ac_prog" | |
53 | ;; | |
54 | "") | |
55 | # If it fails, then pretend we aren't using GCC. | |
56 | ac_prog=ld | |
57 | ;; | |
58 | *) | |
59 | # If it is relative, then search for the first ld in PATH. | |
60 | with_gnu_ld=unknown | |
61 | ;; | |
62 | esac | |
63 | elif test "$with_gnu_ld" = yes; then | |
64 | AC_MSG_CHECKING([for GNU ld]) | |
65 | else | |
66 | AC_MSG_CHECKING([for non-GNU ld]) | |
67 | fi | |
68 | AC_CACHE_VAL(acl_cv_path_LD, | |
69 | [if test -z "$LD"; then | |
70 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}" | |
71 | for ac_dir in $PATH; do | |
72 | test -z "$ac_dir" && ac_dir=. | |
73 | if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then | |
74 | acl_cv_path_LD="$ac_dir/$ac_prog" | |
75 | # Check to see if the program is GNU ld. I'd rather use --version, | |
76 | # but apparently some GNU ld's only accept -v. | |
77 | # Break only if it was the GNU/non-GNU ld that we prefer. | |
78 | if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then | |
79 | test "$with_gnu_ld" != no && break | |
80 | else | |
81 | test "$with_gnu_ld" != yes && break | |
82 | fi | |
83 | fi | |
84 | done | |
85 | IFS="$ac_save_ifs" | |
86 | else | |
87 | acl_cv_path_LD="$LD" # Let the user override the test with a path. | |
88 | fi]) | |
89 | LD="$acl_cv_path_LD" | |
90 | if test -n "$LD"; then | |
91 | AC_MSG_RESULT($LD) | |
92 | else | |
93 | AC_MSG_RESULT(no) | |
94 | fi | |
95 | test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH]) | |
96 | AC_LIB_PROG_LD_GNU | |
97 | ]) |