1#! /bin/sh
2# Wrapper for compilers which do not understand '-c -o'.
3
4scriptversion=2012-03-05.13; # UTC
5
6# Copyright (C) 1999-2012 Free Software Foundation, Inc.
7# Written by Tom Tromey <tromey@cygnus.com>.
8#
9# This program is free software; you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation; either version 2, or (at your option)
12# any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
22# As a special exception to the GNU General Public License, if you
23# distribute this file as part of a program that contains a
24# configuration script generated by Autoconf, you may include it under
25# the same distribution terms that you use for the rest of that program.
26
27# This file is maintained in Automake, please report
28# bugs to <bug-automake@gnu.org> or send patches to
29# <automake-patches@gnu.org>.
30
31nl='
32'
33
34# We need space, tab and new line, in precisely that order.  Quoting is
35# there to prevent tools from complaining about whitespace usage.
36IFS=" ""	$nl"
37
38file_conv=
39
40# func_file_conv build_file lazy
41# Convert a $build file to $host form and store it in $file
42# Currently only supports Windows hosts. If the determined conversion
43# type is listed in (the comma separated) LAZY, no conversion will
44# take place.
45func_file_conv ()
46{
47  file=$1
48  case $file in
49    / | /[!/]*) # absolute file, and not a UNC file
50      if test -z "$file_conv"; then
51	# lazily determine how to convert abs files
52	case `uname -s` in
53	  MINGW*)
54	    file_conv=mingw
55	    ;;
56	  CYGWIN*)
57	    file_conv=cygwin
58	    ;;
59	  *)
60	    file_conv=wine
61	    ;;
62	esac
63      fi
64      case $file_conv/,$2, in
65	*,$file_conv,*)
66	  ;;
67	mingw/*)
68	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
69	  ;;
70	cygwin/*)
71	  file=`cygpath -m "$file" || echo "$file"`
72	  ;;
73	wine/*)
74	  file=`winepath -w "$file" || echo "$file"`
75	  ;;
76      esac
77      ;;
78  esac
79}
80
81# func_cl_dashL linkdir
82# Make cl look for libraries in LINKDIR
83func_cl_dashL ()
84{
85  func_file_conv "$1"
86  if test -z "$lib_path"; then
87    lib_path=$file
88  else
89    lib_path="$lib_path;$file"
90  fi
91  linker_opts="$linker_opts -LIBPATH:$file"
92}
93
94# func_cl_dashl library
95# Do a library search-path lookup for cl
96func_cl_dashl ()
97{
98  lib=$1
99  found=no
100  save_IFS=$IFS
101  IFS=';'
102  for dir in $lib_path $LIB
103  do
104    IFS=$save_IFS
105    if $shared && test -f "$dir/$lib.dll.lib"; then
106      found=yes
107      lib=$dir/$lib.dll.lib
108      break
109    fi
110    if test -f "$dir/$lib.lib"; then
111      found=yes
112      lib=$dir/$lib.lib
113      break
114    fi
115  done
116  IFS=$save_IFS
117
118  if test "$found" != yes; then
119    lib=$lib.lib
120  fi
121}
122
123# func_cl_wrapper cl arg...
124# Adjust compile command to suit cl
125func_cl_wrapper ()
126{
127  # Assume a capable shell
128  lib_path=
129  shared=:
130  linker_opts=
131  for arg
132  do
133    if test -n "$eat"; then
134      eat=
135    else
136      case $1 in
137	-o)
138	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
139	  eat=1
140	  case $2 in
141	    *.o | *.[oO][bB][jJ])
142	      func_file_conv "$2"
143	      set x "$@" -Fo"$file"
144	      shift
145	      ;;
146	    *)
147	      func_file_conv "$2"
148	      set x "$@" -Fe"$file"
149	      shift
150	      ;;
151	  esac
152	  ;;
153	-I)
154	  eat=1
155	  func_file_conv "$2" mingw
156	  set x "$@" -I"$file"
157	  shift
158	  ;;
159	-I*)
160	  func_file_conv "${1#-I}" mingw
161	  set x "$@" -I"$file"
162	  shift
163	  ;;
164	-l)
165	  eat=1
166	  func_cl_dashl "$2"
167	  set x "$@" "$lib"
168	  shift
169	  ;;
170	-l*)
171	  func_cl_dashl "${1#-l}"
172	  set x "$@" "$lib"
173	  shift
174	  ;;
175	-L)
176	  eat=1
177	  func_cl_dashL "$2"
178	  ;;
179	-L*)
180	  func_cl_dashL "${1#-L}"
181	  ;;
182	-static)
183	  shared=false
184	  ;;
185	-Wl,*)
186	  arg=${1#-Wl,}
187	  save_ifs="$IFS"; IFS=','
188	  for flag in $arg; do
189	    IFS="$save_ifs"
190	    linker_opts="$linker_opts $flag"
191	  done
192	  IFS="$save_ifs"
193	  ;;
194	-Xlinker)
195	  eat=1
196	  linker_opts="$linker_opts $2"
197	  ;;
198	-*)
199	  set x "$@" "$1"
200	  shift
201	  ;;
202	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
203	  func_file_conv "$1"
204	  set x "$@" -Tp"$file"
205	  shift
206	  ;;
207	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
208	  func_file_conv "$1" mingw
209	  set x "$@" "$file"
210	  shift
211	  ;;
212	*)
213	  set x "$@" "$1"
214	  shift
215	  ;;
216      esac
217    fi
218    shift
219  done
220  if test -n "$linker_opts"; then
221    linker_opts="-link$linker_opts"
222  fi
223  exec "$@" $linker_opts
224  exit 1
225}
226
227eat=
228
229case $1 in
230  '')
231     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
232     exit 1;
233     ;;
234  -h | --h*)
235    cat <<\EOF
236Usage: compile [--help] [--version] PROGRAM [ARGS]
237
238Wrapper for compilers which do not understand '-c -o'.
239Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
240arguments, and rename the output as expected.
241
242If you are trying to build a whole package this is not the
243right script to run: please start by reading the file 'INSTALL'.
244
245Report bugs to <bug-automake@gnu.org>.
246EOF
247    exit $?
248    ;;
249  -v | --v*)
250    echo "compile $scriptversion"
251    exit $?
252    ;;
253  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
254    func_cl_wrapper "$@"      # Doesn't return...
255    ;;
256esac
257
258ofile=
259cfile=
260
261for arg
262do
263  if test -n "$eat"; then
264    eat=
265  else
266    case $1 in
267      -o)
268	# configure might choose to run compile as 'compile cc -o foo foo.c'.
269	# So we strip '-o arg' only if arg is an object.
270	eat=1
271	case $2 in
272	  *.o | *.obj)
273	    ofile=$2
274	    ;;
275	  *)
276	    set x "$@" -o "$2"
277	    shift
278	    ;;
279	esac
280	;;
281      *.c)
282	cfile=$1
283	set x "$@" "$1"
284	shift
285	;;
286      *)
287	set x "$@" "$1"
288	shift
289	;;
290    esac
291  fi
292  shift
293done
294
295if test -z "$ofile" || test -z "$cfile"; then
296  # If no '-o' option was seen then we might have been invoked from a
297  # pattern rule where we don't need one.  That is ok -- this is a
298  # normal compilation that the losing compiler can handle.  If no
299  # '.c' file was seen then we are probably linking.  That is also
300  # ok.
301  exec "$@"
302fi
303
304# Name of file we expect compiler to create.
305cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
306
307# Create the lock directory.
308# Note: use '[/\\:.-]' here to ensure that we don't use the same name
309# that we are using for the .o file.  Also, base the name on the expected
310# object file name, since that is what matters with a parallel build.
311lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
312while true; do
313  if mkdir "$lockdir" >/dev/null 2>&1; then
314    break
315  fi
316  sleep 1
317done
318# FIXME: race condition here if user kills between mkdir and trap.
319trap "rmdir '$lockdir'; exit 1" 1 2 15
320
321# Run the compile.
322"$@"
323ret=$?
324
325if test -f "$cofile"; then
326  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
327elif test -f "${cofile}bj"; then
328  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
329fi
330
331rmdir "$lockdir"
332exit $ret
333
334# Local Variables:
335# mode: shell-script
336# sh-indentation: 2
337# eval: (add-hook 'write-file-hooks 'time-stamp)
338# time-stamp-start: "scriptversion="
339# time-stamp-format: "%:y-%02m-%02d.%02H"
340# time-stamp-time-zone: "UTC"
341# time-stamp-end: "; # UTC"
342# End:
343