1#! /bin/sh
2# Wrapper for compilers which do not understand '-c -o'.
3
4scriptversion=2012-01-04.17; # UTC
5
6# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2009, 2010, 2012 Free
7# Software Foundation, Inc.
8# Written by Tom Tromey <tromey@cygnus.com>.
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2, or (at your option)
13# any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
23# As a special exception to the GNU General Public License, if you
24# distribute this file as part of a program that contains a
25# configuration script generated by Autoconf, you may include it under
26# the same distribution terms that you use for the rest of that program.
27
28# This file is maintained in Automake, please report
29# bugs to <bug-automake@gnu.org> or send patches to
30# <automake-patches@gnu.org>.
31
32nl='
33'
34
35# We need space, tab and new line, in precisely that order.  Quoting is
36# there to prevent tools from complaining about whitespace usage.
37IFS=" ""	$nl"
38
39file_conv=
40
41# func_file_conv build_file lazy
42# Convert a $build file to $host form and store it in $file
43# Currently only supports Windows hosts. If the determined conversion
44# type is listed in (the comma separated) LAZY, no conversion will
45# take place.
46func_file_conv ()
47{
48  file=$1
49  case $file in
50    / | /[!/]*) # absolute file, and not a UNC file
51      if test -z "$file_conv"; then
52	# lazily determine how to convert abs files
53	case `uname -s` in
54	  MINGW*)
55	    file_conv=mingw
56	    ;;
57	  CYGWIN*)
58	    file_conv=cygwin
59	    ;;
60	  *)
61	    file_conv=wine
62	    ;;
63	esac
64      fi
65      case $file_conv/,$2, in
66	*,$file_conv,*)
67	  ;;
68	mingw/*)
69	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
70	  ;;
71	cygwin/*)
72	  file=`cygpath -m "$file" || echo "$file"`
73	  ;;
74	wine/*)
75	  file=`winepath -w "$file" || echo "$file"`
76	  ;;
77      esac
78      ;;
79  esac
80}
81
82# func_cl_wrapper cl arg...
83# Adjust compile command to suit cl
84func_cl_wrapper ()
85{
86  # Assume a capable shell
87  lib_path=
88  shared=:
89  linker_opts=
90  for arg
91  do
92    if test -n "$eat"; then
93      eat=
94    else
95      case $1 in
96	-o)
97	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
98	  eat=1
99	  case $2 in
100	    *.o | *.[oO][bB][jJ])
101	      func_file_conv "$2"
102	      set x "$@" -Fo"$file"
103	      shift
104	      ;;
105	    *)
106	      func_file_conv "$2"
107	      set x "$@" -Fe"$file"
108	      shift
109	      ;;
110	  esac
111	  ;;
112	-I*)
113	  func_file_conv "${1#-I}" mingw
114	  set x "$@" -I"$file"
115	  shift
116	  ;;
117	-l*)
118	  lib=${1#-l}
119	  found=no
120	  save_IFS=$IFS
121	  IFS=';'
122	  for dir in $lib_path $LIB
123	  do
124	    IFS=$save_IFS
125	    if $shared && test -f "$dir/$lib.dll.lib"; then
126	      found=yes
127	      set x "$@" "$dir/$lib.dll.lib"
128	      break
129	    fi
130	    if test -f "$dir/$lib.lib"; then
131	      found=yes
132	      set x "$@" "$dir/$lib.lib"
133	      break
134	    fi
135	  done
136	  IFS=$save_IFS
137
138	  test "$found" != yes && set x "$@" "$lib.lib"
139	  shift
140	  ;;
141	-L*)
142	  func_file_conv "${1#-L}"
143	  if test -z "$lib_path"; then
144	    lib_path=$file
145	  else
146	    lib_path="$lib_path;$file"
147	  fi
148	  linker_opts="$linker_opts -LIBPATH:$file"
149	  ;;
150	-static)
151	  shared=false
152	  ;;
153	-Wl,*)
154	  arg=${1#-Wl,}
155	  save_ifs="$IFS"; IFS=','
156	  for flag in $arg; do
157	    IFS="$save_ifs"
158	    linker_opts="$linker_opts $flag"
159	  done
160	  IFS="$save_ifs"
161	  ;;
162	-Xlinker)
163	  eat=1
164	  linker_opts="$linker_opts $2"
165	  ;;
166	-*)
167	  set x "$@" "$1"
168	  shift
169	  ;;
170	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
171	  func_file_conv "$1"
172	  set x "$@" -Tp"$file"
173	  shift
174	  ;;
175	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
176	  func_file_conv "$1" mingw
177	  set x "$@" "$file"
178	  shift
179	  ;;
180	*)
181	  set x "$@" "$1"
182	  shift
183	  ;;
184      esac
185    fi
186    shift
187  done
188  if test -n "$linker_opts"; then
189    linker_opts="-link$linker_opts"
190  fi
191  exec "$@" $linker_opts
192  exit 1
193}
194
195eat=
196
197case $1 in
198  '')
199     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
200     exit 1;
201     ;;
202  -h | --h*)
203    cat <<\EOF
204Usage: compile [--help] [--version] PROGRAM [ARGS]
205
206Wrapper for compilers which do not understand '-c -o'.
207Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
208arguments, and rename the output as expected.
209
210If you are trying to build a whole package this is not the
211right script to run: please start by reading the file 'INSTALL'.
212
213Report bugs to <bug-automake@gnu.org>.
214EOF
215    exit $?
216    ;;
217  -v | --v*)
218    echo "compile $scriptversion"
219    exit $?
220    ;;
221  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
222    func_cl_wrapper "$@"      # Doesn't return...
223    ;;
224esac
225
226ofile=
227cfile=
228
229for arg
230do
231  if test -n "$eat"; then
232    eat=
233  else
234    case $1 in
235      -o)
236	# configure might choose to run compile as 'compile cc -o foo foo.c'.
237	# So we strip '-o arg' only if arg is an object.
238	eat=1
239	case $2 in
240	  *.o | *.obj)
241	    ofile=$2
242	    ;;
243	  *)
244	    set x "$@" -o "$2"
245	    shift
246	    ;;
247	esac
248	;;
249      *.c)
250	cfile=$1
251	set x "$@" "$1"
252	shift
253	;;
254      *)
255	set x "$@" "$1"
256	shift
257	;;
258    esac
259  fi
260  shift
261done
262
263if test -z "$ofile" || test -z "$cfile"; then
264  # If no '-o' option was seen then we might have been invoked from a
265  # pattern rule where we don't need one.  That is ok -- this is a
266  # normal compilation that the losing compiler can handle.  If no
267  # '.c' file was seen then we are probably linking.  That is also
268  # ok.
269  exec "$@"
270fi
271
272# Name of file we expect compiler to create.
273cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
274
275# Create the lock directory.
276# Note: use '[/\\:.-]' here to ensure that we don't use the same name
277# that we are using for the .o file.  Also, base the name on the expected
278# object file name, since that is what matters with a parallel build.
279lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
280while true; do
281  if mkdir "$lockdir" >/dev/null 2>&1; then
282    break
283  fi
284  sleep 1
285done
286# FIXME: race condition here if user kills between mkdir and trap.
287trap "rmdir '$lockdir'; exit 1" 1 2 15
288
289# Run the compile.
290"$@"
291ret=$?
292
293if test -f "$cofile"; then
294  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
295elif test -f "${cofile}bj"; then
296  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
297fi
298
299rmdir "$lockdir"
300exit $ret
301
302# Local Variables:
303# mode: shell-script
304# sh-indentation: 2
305# eval: (add-hook 'write-file-hooks 'time-stamp)
306# time-stamp-start: "scriptversion="
307# time-stamp-format: "%:y-%02m-%02d.%02H"
308# time-stamp-time-zone: "UTC"
309# time-stamp-end: "; # UTC"
310# End:
311