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| -rw-r--r-- | INSTALL | 82 |
1 files changed, 53 insertions, 29 deletions
@@ -511,34 +511,55 @@ problems sometimes encountered, and what to do about them. Installation on MSDOG (a.k.a. MSDOS) To install on MSDOG, you need to have the GNU C compiler for MSDOG -(also known as djgpp), GNU Make, rm, mv, chmod, and sed. See the -remarks in config.bat for more information about locations and -versions. - -If you are compiling on an MSDOG-like system which has long file -names, you may need to do `SET LFN=y' for some of the commands, -especially the compilation commands. It might be more convenient to -unpack the Emacs distribution with djtar, which comes with djgpp; if -you do `SET LFN=n' before unpacking, djtar truncates file names to 8.3 -naming as it extracts files, even if the system allows long file -names, and this ensures that build procedures designed for 8.3 file -names still work. Use djtar with the command `djtar -x foo.tar' or -`djtar -x foo.tgz'. - -Some users report that running Emacs 19.29 requires dpmi memory -management. We do not know why this is so, since 19.28 did not need -it. If we find out what change introduced this requirement, we may -try to eliminate it. ("May" because perhaps djgpp version 2's -improved dpmi handling means this is no longer a problem.) - -It is possible that this problem happens only when there is not enough -physical memory on the machine. - -You can find out if you have a dpmi host by running go32 (part of -djgpp) without arguments; it will tell you if it uses dpmi memory. -For more information about dpmi memory, consult the djgpp FAQ. - -To build and install Emacs, type these commands: +(also known as djgpp), GNU Make, rm, mv, and sed. See the remarks in +config.bat for more information about locations and versions. The +file etc/FAQ includes pointers to Internet sites where you can find +the necessary utilities; search for "MS-DOS". The configuration step +(see below) will test for these utilities and will refuse to continue +if any of them isn't found. + +If you are building the MSDOG version of Emacs on an MSDOG-like system +which supports long file names (e.g. Windows 95), you need to make +sure that long file names are handled consistently both when you +unpack the distribution and compile it. If you intend to compile with +DJGPP v2.0 or later, and long file names support is enabled (LFN=y in +the environment), you need to unpack Emacs distribution in a way that +doesn't truncate the original long filenames to the DOS 8.3 namespace; +the easiest way to do this is to use djtar program which comes with +DJGPP, since it will note the LFN setting and behave accordingly. +DJGPP v1 doesn't support long filenames, so you must unpack Emacs with +a program that truncates the filenames to 8.3 naming as it extracts +files; again, using djtar after setting LFN=n is the recommended way. +You can build Emacs with LFN=n even if you use DJGPP v2, if some of +your tools don't support long file names: just ensure that LFN is set +to `n' during both unpacking and compiling. + +(By the time you read this, you have already unpacked the Emacs +distribution, but if the explanations above imply that you should have +done it differently, it's safer to delete the directory tree created +by the unpacking program and unpack Emacs again, than to risk running +into problems during the build process.) + +It is important to understand that the runtime support of long file +names by the Emacs binary is NOT affected by the LFN setting during +compilation; Emacs compiled with DJGPP v2.0 or later will always +support long file names on Windows 95 no matter what was the setting +of LFN at compile time. + +To unpack Emacs with djtar, type this command: + + djtar -x emacs.tgz + +(This assumes that the Emacs distribution is called `emacs.tgz' on +your system.) There are a few files in the archive whose names +collide with other files under the 8.3 DOS naming. If you have set +LFN=n, djtar will ask you to supply alternate names for these files; +you can just press `Enter' when this happens (which makes djtar skip +these files) because they aren't required for MS-DOS. + +When unpacking is done, a directory called `emacs-XX.YY' will be +created, where XX.YY is the Emacs version. To build and install +Emacs, chdir to that directory and type these commands: config msdos make install @@ -549,7 +570,10 @@ sibling directory called bin. For example, if you build in directory /emacs, installing moves the executables from /emacs/src and /emacs/lib-src to the directory /emacs/bin, so you can then delete the subdirectories /emacs/src and /emacs/lib-src if you wish. The only -subdirectories you need to keep are bin, lisp, etc and info. +subdirectories you need to keep are bin, lisp, etc and info. The bin +subdirectory should be added to your PATH. The msdos subdirectory +includes a PIF and an icon file for Emacs which you might find useful +if you run Emacs under MS Windows. Emacs on MSDOS finds the lisp, etc and info directories by looking in ../lisp, ../etc and ../info, starting from the directory where the |