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authorMark Mitchell <mark@codesourcery.com>2006-01-03 00:30:27 +0000
committerMark Mitchell <mmitchel@gcc.gnu.org>2006-01-03 00:30:27 +0000
commitd79e6356aa0f64c2f83c3d57b61760cf65c15963 (patch)
tree26f43cf3a310c3facb63a583f150f4158ffeb17b /libtool-ldflags
parentDaily bump. (diff)
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libtool-ldflags: New script.
* libtool-ldflags: New script. * src/Makefile.am (LTLDFLAGS): New variable. (CXXLINK): Use LTLDFLAGS. * src/Makefile.in: Regenerated. * libsupc++/Makefile.am (LTLDFLAGS): New variable. (CXXLINK): Use LTLDFLAGS. * libsupc++/Makefile.in: Regenerated. From-SVN: r109256
Diffstat (limited to 'libtool-ldflags')
-rwxr-xr-xlibtool-ldflags97
1 files changed, 97 insertions, 0 deletions
diff --git a/libtool-ldflags b/libtool-ldflags
new file mode 100755
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1#! /bin/sh
2
3# Script to translate LDFLAGS into a form suitable for use with libtool.
4
5# Copyright (C) 2005 Free Software Foundation, Inc.
6#
7# This file is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20# MA 02110-1301, USA.
21
22# Contributed by CodeSourcery, LLC.
23
24# This script is designed to be used from a Makefile that uses libtool
25# to build libraries as follows:
26#
27# LTLDFLAGS = $(shell libtool-ldflags $(LDFLAGS))
28#
29# Then, use (LTLDFLAGS) in place of $(LDFLAGS) in your link line.
30
31# The output of the script. This string is built up as we process the
32# arguments.
33result=
34
35for arg
36do
37 case $arg in
38 -f*|--*)
39 # Libtool does not ascribe any special meaning options
40 # that begin with -f or with a double-dash. So, it will
41 # think these options are linker options, and prefix them
42 # with "-Wl,". Then, the compiler driver will ignore the
43 # options. So, we prefix these options with -Xcompiler to
44 # make clear to libtool that they are in fact compiler
45 # options.
46 result="$result -Xcompiler"
47 ;;
48 *)
49 # We do not want to add -Xcompiler to other options because
50 # that would prevent libtool itself from recognizing them.
51 ;;
52 esac
53
54 # If $(LDFLAGS) is (say):
55 # a "b'c d" e
56 # then the user expects that:
57 # $(LD) $(LDFLAGS)
58 # will pass three arguments to $(LD):
59 # 1) a
60 # 2) b'c d
61 # 3) e
62 # We must ensure, therefore, that the arguments are appropriately
63 # quoted so that using:
64 # libtool --mode=link ... $(LTLDFLAGS)
65 # will result in the same number of arguments being passed to
66 # libtool. In other words, when this script was invoked, the shell
67 # removed one level of quoting, present in $(LDFLAGS); we have to put
68 # it back.
69
70 # Quote any embedded single quotes.
71 case $arg in
72 *"'"*)
73 # The following command creates the script:
74 # 1s,^X,,;s|'|'"'"'|g
75 # which removes a leading X, and then quotes and embedded single
76 # quotes.
77 sed_script="1s,^X,,;s|'|'\"'\"'|g"
78 # Add a leading "X" so that if $arg starts with a dash,
79 # the echo command will not try to interpret the argument
80 # as a command-line option.
81 arg="X$arg"
82 # Generate the quoted string.
83 quoted_arg=`echo "$arg" | sed -e "$sed_script"`
84 ;;
85 *)
86 quoted_arg=$arg
87 ;;
88 esac
89 # Surround the entire argument with single quotes.
90 quoted_arg="'"$quoted_arg"'"
91
92 # Add it to the string.
93 result="$result $quoted_arg"
94done
95
96# Output the string we have built up.
97echo "$result"