Commit | Line | Data |
---|---|---|
a4a9692d | 1 | Building and Installing Emacs |
3dfbc6d8 | 2 | on Windows NT/2K/XP and Windows 95/98/ME |
a4a9692d | 3 | |
ceb4c4d3 TTN |
4 | Copyright (C) 2001, 2002, 2003, 2004, 2005, |
5 | 2006 Free Software Foundation, Inc. | |
4b994b84 AI |
6 | See the end of the file for copying permissions. |
7 | ||
12d70bbb EZ |
8 | If you used WinZip to unpack the distribution, we suggest to |
9 | remove the files and unpack again with a different program! | |
10 | WinZip is known to create some subtle and hard to debug problems, | |
177c0ea7 | 11 | such as converting files to DOS CR-LF format, not creating empty |
12d70bbb EZ |
12 | directories, etc. We suggest to use djtarnt.exe from the GNU FTP |
13 | site. | |
14 | ||
589a591b JR |
15 | If you are building out of CVS, then some files in this directory |
16 | (.bat files, nmake.defs and makefile.w32-in) may need the line-ends | |
17 | fixing first. The easiest way to do this and avoid future conflicts | |
18 | is to run the following command in this (emacs/nt) directory: | |
591cbed1 | 19 | |
589a591b | 20 | cvs update -kb |
591cbed1 | 21 | |
da4b598c EZ |
22 | Alternatively, use programs that convert end-of-line format, such as |
23 | dos2unix and unix2dos available from GnuWin32 or dtou and utod from | |
24 | the DJGPP project. | |
591cbed1 | 25 | |
1040d041 | 26 | In addition to this file, you should also read INSTALL.CVS in the |
591cbed1 EZ |
27 | parent directory, and make sure that you have a version of |
28 | "touch.exe" in your path, and that it will create files that do not | |
29 | yet exist. | |
589a591b | 30 | |
da179dd0 | 31 | To compile Emacs, you will need either Microsoft Visual C++ 2.0 or |
bd7bdff8 | 32 | later and nmake, or a Windows port of GCC 2.95 or later with MinGW |
6c72c0c7 | 33 | and W32 API support and a port of GNU Make. You can use the Cygwin |
bd7bdff8 | 34 | ports of GCC, but Emacs requires the MinGW headers and libraries to |
8481e41e EZ |
35 | build (latest versions of the Cygwin toolkit, at least since v1.3.3, |
36 | include the MinGW headers and libraries as an integral part). | |
da179dd0 | 37 | |
6c72c0c7 EZ |
38 | If you use the MinGW port of GCC and GNU Make to build Emacs, there |
39 | are some compatibility issues wrt Make and the shell that is run by | |
40 | Make, either the standard COMMAND.COM/CMD.EXE supplied with Windows | |
41 | or sh.exe., a port of a Unixy shell. For reference, here is a list | |
42 | of which builds of GNU Make are known to work or not, and whether | |
43 | they work in the presence and/or absence of sh.exe, the Cygwin port | |
44 | of Bash. Note that any version of Make that is compiled with Cygwin | |
45 | will only work with Cygwin tools, due to the use of cygwin style | |
46 | paths. This means Cygwin Make is unsuitable for building parts of | |
47 | Emacs that need to invoke Emacs itself (leim and "make bootstrap", | |
48 | for example). Also see the Trouble-shooting section below if you | |
49 | decide to go ahead and use Cygwin make. | |
b147d297 EZ |
50 | |
51 | In addition, using 4NT as your shell is known to fail the build process, | |
6c72c0c7 | 52 | at least for 4NT version 3.01. Use CMD.EXE, the default Windows shell, |
f9a8480b JR |
53 | instead. MSYS sh.exe also appears to cause various problems. If you have |
54 | MSYS installed, try "make SHELL=cmd.exe" to force the use of cmd.exe | |
55 | instead of sh.exe. | |
177c0ea7 | 56 | |
4bcec9a2 EZ |
57 | sh exists no sh |
58 | ||
fc813ef6 | 59 | cygwin b20.1 make (3.75): fails[1, 5] fails[2, 5] |
4bcec9a2 EZ |
60 | MSVC compiled gmake 3.77: okay okay |
61 | MSVC compiled gmake 3.78.1: okay okay | |
62 | MSVC compiled gmake 3.79.1: okay okay | |
bf95665f | 63 | mingw32/gcc-2.92.2 make (3.77): okay okay[4] |
fc813ef6 JR |
64 | cygwin compiled gmake 3.77: fails[1, 5] fails[2, 5] |
65 | cygwin compiled make 3.78.1: fails[5] fails[2, 5] | |
66 | cygwin compiled make 3.79.1: fails[3, 5] fails[2?, 5] | |
177c0ea7 | 67 | mingw32 compiled make 3.79.1: okay okay |
591cbed1 | 68 | mingw32 compiled make 3.80: okay unknown[6] |
4bcec9a2 EZ |
69 | |
70 | Notes: | |
71 | ||
72 | [1] doesn't cope with makefiles with DOS line endings, so must mount | |
73 | emacs source with text!=binary. | |
74 | [2] fails when needs to invoke shell commands; okay invoking gcc etc. | |
fc813ef6 JR |
75 | [3] requires LC_MESSAGES support to build; cannot build with early |
76 | versions of cygwin. | |
4bcec9a2 | 77 | [4] may fail on Windows 9X and Windows ME; if so, install Bash. |
fc813ef6 JR |
78 | [5] fails when building leim due to the use of cygwin style paths. |
79 | May work if building emacs without leim. | |
591cbed1 | 80 | [6] please report if you try this combination. |
4bcec9a2 | 81 | |
6c72c0c7 EZ |
82 | Other compilers may work, but specific reports from people that have |
83 | tried suggest that the Intel C compiler (for example) may produce an | |
84 | Emacs executable with strange filename completion behaviour. Unless | |
85 | you would like to assist by finding and fixing the cause of any bugs | |
86 | like this, we recommend the use of the supported compilers mentioned | |
87 | in the previous paragraph. | |
88 | ||
89 | You will also need a copy of the Posix cp, rm and mv programs. These | |
90 | and other useful Posix utilities can be obtained from one of several | |
91 | projects: | |
92 | ||
93 | * http://www.mingw.org/ ( MinGW ) | |
94 | * http://www.cygwin.com/ ( Cygwin ) | |
95 | * http://unxutils.sourceforge.net/ ( UnxUtils ) | |
96 | * http://gnuwin32.sourceforge.net/ ( GnuWin32 ) | |
97 | ||
98 | If you build Emacs on Windows 9X or ME, not on Windows 2K/XP or | |
99 | Windows NT, we suggest to install the Cygwin port of Bash. | |
100 | ||
101 | Additional instructions and help for building Emacs on Windows can be | |
102 | found at the Emacs Wiki: | |
103 | ||
104 | http://www.emacswiki.org/cgi-bin/wiki/WThirtyTwoInstallationKit | |
105 | ||
106 | and at this URL: | |
107 | ||
108 | http://ourcomments.org/Emacs/w32-build-emacs.html | |
109 | ||
6d76a603 | 110 | * Configuring |
a4a9692d | 111 | |
da179dd0 AI |
112 | Configuration of Emacs is now handled by running configure.bat in the |
113 | nt subdirectory. It will detect which compiler you have available, | |
114 | and generate makefiles accordingly. You can override the compiler | |
115 | detection, and control optimization and debug settings, by specifying | |
116 | options on the command line when invoking configure. | |
a4a9692d | 117 | |
da179dd0 AI |
118 | To configure Emacs to build with GCC or MSVC, whichever is available, |
119 | simply change to the nt subdirectory and run `configure' with no | |
120 | options. To see what options are available, run `configure --help'. | |
a4a9692d | 121 | |
17d4e22c AI |
122 | N.B. It is normal to see a few error messages output while configure |
123 | is running, when gcc support is being tested. These cannot be | |
124 | surpressed because of limitations in the Windows 9x command.com shell. | |
125 | ||
591cbed1 EZ |
126 | You are encouraged to look at the file config.log which shows details |
127 | for failed tests, after configure.bat finishes. Any unexplained failure | |
128 | should be investigated and perhaps reported as a bug (see the section | |
129 | about reporting bugs in the file README in this directory and in the | |
130 | Emacs manual). | |
131 | ||
bfd889ed JR |
132 | * Optional image library support |
133 | ||
3dfbc6d8 JB |
134 | In addition to its "native" image formats (pbm and xbm), Emacs can |
135 | handle other image types: xpm, tiff, gif, png and jpeg (postscript is | |
136 | currently unsupported on Windows). To build Emacs with support for | |
137 | them, the corresponding headers must be in the include path when the | |
138 | configure script is run. This can be setup using environment | |
139 | variables, or by specifying --cflags -I... options on the command-line | |
140 | to configure.bat. The configure script will report whether it was | |
591cbed1 EZ |
141 | able to detect the headers. If the results of this testing appear to be |
142 | incorrect, please look for details in the file config.log: it will show | |
143 | the failed test programs and compiler error messages that should explain | |
144 | what is wrong. (Usually, any such failures happen because some headers | |
145 | are missing due to bad packaging of the image support libraries.) | |
bfd889ed | 146 | |
3dfbc6d8 | 147 | To use the external image support, the DLLs implementing the |
bd7bdff8 JB |
148 | functionality must be found when Emacs first needs them, either on the |
149 | PATH, or in the same directory as emacs.exe. Failure to find a | |
150 | library is not an error; the associated image format will simply be | |
151 | unavailable. Note that once Emacs has determined that a library can | |
152 | not be found, there's no way to force it to try again, other than | |
153 | restarting. See the variable `image-library-alist' to configure the | |
154 | expected names of the libraries. | |
3dfbc6d8 JB |
155 | |
156 | Some image libraries have dependencies on one another, or on zlib. | |
157 | For example, tiff support depends on the jpeg library. If you did not | |
158 | compile the libraries yourself, you must make sure that any dependency | |
159 | is in the PATH or otherwise accesible and that the binaries are | |
160 | compatible (for example, that they were built with the same compiler). | |
161 | ||
162 | Binaries for the image libraries (among many others) can be found at | |
bd7bdff8 | 163 | the GnuWin32 project. These are built with MinGW, but they can be |
591cbed1 | 164 | used with both GCC/MinGW and MSVC builds of Emacs. See the info on |
68dafa7a | 165 | http://ourcomments.org/Emacs/EmacsW32.html for more details about |
591cbed1 | 166 | installing image support libraries. |
bfd889ed | 167 | |
6d76a603 | 168 | * Building |
a4a9692d | 169 | |
da179dd0 AI |
170 | After running configure, simply run the appropriate `make' program for |
171 | your compiler to build Emacs. For MSVC, this is nmake; for GCC, it is | |
172 | GNU make. | |
a4a9692d | 173 | |
da179dd0 AI |
174 | As the files are compiled, you will see some warning messages |
175 | declaring that some functions don't return a value, or that some data | |
176 | conversions will be lossy, etc. You can safely ignore these messages. | |
177 | The warnings may be fixed in the main FSF source at some point, but | |
178 | until then we will just live with them. | |
a4a9692d | 179 | |
6d76a603 | 180 | * Installing |
a4a9692d | 181 | |
0fc7be80 EZ |
182 | To install Emacs after it has compiled, simply run `nmake install' |
183 | or `make install', depending on which version of the Make utility | |
184 | do you have. | |
a4a9692d | 185 | |
da179dd0 AI |
186 | By default, Emacs will be installed in the location where it was |
187 | built, but a different location can be specified either using the | |
188 | --prefix option to configure, or by setting INSTALL_DIR when running | |
189 | make, like so: | |
a4a9692d | 190 | |
da179dd0 | 191 | make install INSTALL_DIR=D:/emacs |
a4a9692d | 192 | |
0fc7be80 EZ |
193 | (for `nmake', type "nmake install INSTALL_DIR=D:/emacs" instead). |
194 | ||
da179dd0 AI |
195 | The install process will run addpm to setup the registry entries, and |
196 | to create a Start menu icon for Emacs. | |
a4a9692d | 197 | |
6d76a603 | 198 | * Trouble-shooting |
a4a9692d | 199 | |
da179dd0 | 200 | The main problems that are likely to be encountered when building |
bd7bdff8 | 201 | Emacs stem from using an old version of GCC, or old MinGW or W32 API |
da179dd0 AI |
202 | headers. Additionally, cygwin ports of GNU make may require the Emacs |
203 | source tree to be mounted with text!=binary, because the makefiles | |
204 | generated by configure.bat necessarily use DOS line endings. Also, | |
205 | cygwin ports of make must run in UNIX mode, either by specifying | |
206 | --unix on the command line, or MAKE_MODE=UNIX in the environment. | |
a4a9692d | 207 | |
da179dd0 AI |
208 | When configure runs, it attempts to detect when GCC itself, or the |
209 | headers it is using, are not suitable for building Emacs. GCC version | |
210 | 2.95 or later is needed, because that is when the Windows port gained | |
211 | sufficient support for anonymous structs and unions to cope with some | |
212 | definitions from winnt.h that are used by addsection.c. The W32 API | |
213 | headers that come with Cygwin b20.1 are incomplete, and do not include | |
214 | some definitions required by addsection.c, for instance. Also, older | |
215 | releases of the W32 API headers from Anders Norlander contain a typo | |
216 | in the definition of IMAGE_FIRST_SECTION in winnt.h, which | |
217 | addsection.c relies on. Versions of w32api-xxx.zip from at least | |
218 | 1999-11-18 onwards are okay. | |
a4a9692d | 219 | |
591cbed1 EZ |
220 | When in doubt about correctness of what configure did, look at the file |
221 | config.log, which shows all the failed test programs and compiler | |
222 | messages associated with the failures. If that doesn't give a clue, | |
223 | please report the problems, together with the relevant fragments from | |
224 | config.log, as bugs. | |
225 | ||
4bcec9a2 EZ |
226 | If configure succeeds, but make fails, install the Cygwin port of |
227 | Bash, even if the table above indicates that Emacs should be able to | |
228 | build without sh.exe. (Some versions of Windows shells are too dumb | |
229 | for Makefile's used by Emacs.) | |
230 | ||
8481e41e | 231 | If you are using certain Cygwin builds of GCC, such as Cygwin version |
6d76a603 AI |
232 | 1.1.8, you may need to specify some extra compiler flags like so: |
233 | ||
234 | configure --with-gcc --cflags -mwin32 --cflags -D__MSVCRT__ | |
315746cc | 235 | --ldflags -mwin32 |
6d76a603 | 236 | |
8481e41e EZ |
237 | However, the latest Cygwin versions, such as 1.3.3, don't need those |
238 | switches; you can simply use "configure --with-gcc". | |
239 | ||
6d76a603 AI |
240 | We will attempt to auto-detect the need for these flags in a future |
241 | release. | |
242 | ||
243 | * Debugging | |
a4a9692d | 244 | |
da179dd0 AI |
245 | You should be able to debug Emacs using the debugger that is |
246 | appropriate for the compiler you used, namely DevStudio or Windbg if | |
3a817827 EZ |
247 | compiled with MSVC, or GDB if compiled with GCC. |
248 | ||
249 | When Emacs aborts due to a fatal internal error, Emacs on Windows | |
250 | pops up an Emacs Abort Dialog asking you whether you want to debug | |
251 | Emacs or terminate it. If Emacs was built with MSVC, click YES | |
252 | twice, and Windbg or the DevStudio debugger will start up | |
253 | automatically. If Emacs was built with GCC, first start GDB and | |
254 | attach it to the Emacs process with the "gdb -p EMACS-PID" command, | |
255 | where EMACS-PID is the Emacs process ID (which you can see in the | |
256 | Windows Task Manager), type the "continue" command inside GDB, and | |
257 | only then click YES on the abort dialog. This will pass control to | |
258 | the debugger, and you will be able to debug the cause of the fatal | |
259 | error. | |
da179dd0 AI |
260 | |
261 | Emacs functions implemented in C use a naming convention that reflects | |
262 | their names in lisp. The names of the C routines are the lisp names | |
263 | prefixed with 'F', and with dashes converted to underscores. For | |
264 | example, the function call-process is implemented in C by | |
265 | Fcall_process. Similarly, lisp variables are prefixed with 'V', again | |
266 | with dashes converted to underscores. These conventions enable you to | |
267 | easily set breakpoints or examine familiar lisp variables by name. | |
268 | ||
269 | Since Emacs data is often in the form of a lisp object, and the | |
3a817827 EZ |
270 | Lisp_Object type is difficult to examine manually in a debugger, |
271 | Emacs provides a helper routine called debug_print that prints out a | |
272 | readable representation of a Lisp_Object. If you are using GDB, | |
273 | there is a .gdbinit file in the src directory which provides | |
274 | definitions that are useful for examining lisp objects. Therefore, | |
275 | the following tips are mainly of interest when using MSVC. | |
276 | ||
277 | The output from debug_print is sent to stderr, and to the debugger | |
278 | via the OutputDebugString routine. The output sent to stderr should | |
279 | be displayed in the console window that was opened when the | |
280 | emacs.exe executable was started. The output sent to the debugger | |
281 | should be displayed in its "Debug" output window. | |
da179dd0 AI |
282 | |
283 | When you are in the process of debugging Emacs and you would like to | |
284 | examine the contents of a Lisp_Object variable, popup the QuickWatch | |
285 | window (QuickWatch has an eyeglass symbol on its button in the | |
286 | toolbar). In the text field at the top of the window, enter | |
287 | debug_print(<variable>) and hit return. For example, start and run | |
288 | Emacs in the debugger until it is waiting for user input. Then click | |
289 | on the Break button in the debugger to halt execution. Emacs should | |
290 | halt in ZwUserGetMessage waiting for an input event. Use the Call | |
291 | Stack window to select the procedure w32_msp_pump up the call stack | |
292 | (see below for why you have to do this). Open the QuickWatch window | |
293 | and enter debug_print(Vexec_path). Evaluating this expression will | |
294 | then print out the contents of the lisp variable exec-path. | |
295 | ||
296 | If QuickWatch reports that the symbol is unknown, then check the call | |
297 | stack in the Call Stack window. If the selected frame in the call | |
298 | stack is not an Emacs procedure, then the debugger won't recognize | |
299 | Emacs symbols. Instead, select a frame that is inside an Emacs | |
300 | procedure and try using debug_print again. | |
301 | ||
302 | If QuickWatch invokes debug_print but nothing happens, then check the | |
303 | thread that is selected in the debugger. If the selected thread is | |
304 | not the last thread to run (the "current" thread), then it cannot be | |
305 | used to execute debug_print. Use the Debug menu to select the current | |
306 | thread and try using debug_print again. Note that the debugger halts | |
307 | execution (e.g., due to a breakpoint) in the context of the current | |
308 | thread, so this should only be a problem if you've explicitly switched | |
309 | threads. | |
4b994b84 AI |
310 | |
311 | COPYING PERMISSIONS | |
312 | ||
313 | Permission is granted to anyone to make or distribute verbatim copies | |
314 | of this document as received, in any medium, provided that the | |
315 | copyright notice and permission notice are preserved, | |
316 | and that the distributor grants the recipient permission | |
317 | for further redistribution as permitted by this notice. | |
318 | ||
319 | Permission is granted to distribute modified versions | |
320 | of this document, or of portions of it, | |
321 | under the above conditions, provided also that they | |
322 | carry prominent notices stating who last changed them, | |
323 | and that any new or changed statements about the activities | |
324 | of the Free Software Foundation are approved by the Foundation. |