Annotation of src/usr.bin/less/README, Revision 1.4
1.2 mbalmer 1:
1.4 ! shadchin 2: Less, version 458
1.2 mbalmer 3:
1.4 ! shadchin 4: This is the distribution of less, version 458, released 04 Apr 2013.
1.2 mbalmer 5: This program is part of the GNU project (http://www.gnu.org).
6:
7: This program is free software. You may redistribute it and/or
8: modify it under the terms of either:
9:
10: 1. The GNU General Public License, as published by the Free
1.3 shadchin 11: Software Foundation; either version 3, or (at your option) any
1.2 mbalmer 12: later version. A copy of this license is in the file COPYING.
13: or
14: 2. The Less License, in the file LICENSE.
15:
1.4 ! shadchin 16: Please report any problems to bug-less@gnu.org.
1.2 mbalmer 17: See http://www.greenwoodsoftware.com/less for the latest info.
18:
19: =========================================================================
1.1 etheisen 20:
21: This is the distribution of "less", a paginator similar to "more" or "pg".
1.2 mbalmer 22:
1.1 etheisen 23: The formatted manual page is in less.man.
24: The manual page nroff source is in less.nro.
25: Major changes made since the last posted version are in NEWS.
26:
27: =======================================================================
28: INSTALLATION (Unix systems only):
29:
1.2 mbalmer 30: 1. Move the distributed source to its own directory and unpack it,
31: if you have not already done so.
1.1 etheisen 32:
33: 2. Type "sh configure".
34: This will generate a Makefile and a defines.h.
35: Warning: if you have a GNU sed, make sure it is version 2.05 or later.
36:
1.2 mbalmer 37: The file INSTALL describes the usage of the configure program in
38: general. In addition, these options to configure are supported:
39:
40: --with-editor=program
41: Specifies the default editor program used by the "v" command.
42: The default is "vi".
1.3 shadchin 43:
1.2 mbalmer 44: --with-regex=lib
45: Specifies the regular expression library used by less for pattern
46: matching. The default is "auto", which means the configure program
47: finds a regular expression library automatically. Other values are:
48: posix Use the POSIX-compatible regcomp.
49: pcre Use the PCRE library.
50: regcmp Use the regcmp library.
51: re_comp Use the re_comp library.
52: regcomp Use the V8-compatible regcomp.
53: regcomp-local Use Henry Spencer's V8-compatible regcomp
54: (source is supplied with less).
1.4 ! shadchin 55: none No regular expressions, only simple string matching.
1.3 shadchin 56: --with-secure
57: Builds a "secure" version of less, with some features disabled
1.4 ! shadchin 58: to prevent users from viewing other files, accessing shell
! 59: commands, etc.
1.3 shadchin 60:
1.2 mbalmer 61:
1.1 etheisen 62: 3. It is a good idea to look over the generated Makefile and defines.h
63: and make sure they look ok. If you know of any peculiarities of
64: your system that configure might not have detected, you may fix the
1.2 mbalmer 65: Makefile now. Take particular notice of the list of "terminal"
66: libraries in the LIBS definition in the Makefile; these may need
67: to be edited. The terminal libraries will be some subset of
68: -lncurses -lcurses -ltermcap -ltermlib
1.1 etheisen 69:
70: If you wish, you may edit defines.h to remove some optional features.
71: If you choose not to include some features in your version, you may
72: wish to edit the manual page "less.nro" and the help page "less.hlp"
73: to remove the descriptions of the features which you are removing.
1.2 mbalmer 74: If you edit less.hlp, you should run "make -f Makefile.aut help.c".
1.1 etheisen 75:
76: 4. Type "make" and watch the fun.
77:
1.2 mbalmer 78: 5. If the make succeeds, it will generate the programs "less",
79: "lesskey" and "lessecho" in your current directory. Test the
80: generated programs.
1.1 etheisen 81:
82: 6. When satisfied that it works, if you wish to install it
83: in a public place, type "make install".
84:
85: The default install destinations are:
1.2 mbalmer 86: Executables (less, lesskey, lessecho) in /usr/local/bin
87: Documentation (less.nro, lesskey.nro) in /usr/local/man/man1
1.1 etheisen 88: If you want to install any of these files elsewhere, define
1.2 mbalmer 89: bindir and/or mandir to the appropriate directories.
1.1 etheisen 90:
91: If you have any problems building or running "less", suggestions,
1.4 ! shadchin 92: complaints, etc., you may mail to bug-less@gnu.org.
1.1 etheisen 93:
94: Note to hackers: comments noting possible improvements are enclosed
95: in double curly brackets {{ like this }}.
1.3 shadchin 96:
97: (Note that the above note was originally written at a time when
98: "hackers" most commonly meant "enthusiastic and dedicated computer
99: programmers", not "persons who attempt to circumvent computer security".)
1.1 etheisen 100:
101:
102:
103: =======================================================================
1.2 mbalmer 104: INSTALLATION (MS-DOS systems only,
105: with Microsoft C, Borland C, or DJGPP)
1.1 etheisen 106:
107: 1. Move the distributed source to its own directory.
1.2 mbalmer 108: Depending on your compiler, you may need to convert the source
109: to have CR-LF rather than LF as line terminators.
1.1 etheisen 110:
1.2 mbalmer 111: 2. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE.
112: If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE.
113: If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE.
1.1 etheisen 114:
115: 3. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR
1.2 mbalmer 116: are correct. CC should be the name of your C compiler and
117: LIBDIR should be the directory where the C libraries reside (for
118: Microsoft C only). If these definitions need to be changed, you can
119: either modify the definitions directly in MAKEFILE, or set your
120: environment variables CC and/or LIBDIR to override the definitions
121: in MAKEFILE.
1.1 etheisen 122:
1.2 mbalmer 123: 4. If you wish, you may edit DEFINES.DS to remove some optional features.
1.1 etheisen 124: If you choose not to include some features in your version, you may
1.2 mbalmer 125: wish to edit the manual page LESS.MAN and the help page HELP.C
1.1 etheisen 126: to remove the descriptions of the features which you are removing.
127:
1.2 mbalmer 128: 5. Run your "make" program and watch the fun.
129: If your "make" requires a flag to import environment variables,
130: you should use that flag.
1.1 etheisen 131: If your compiler runs out of memory, try running "make -n >cmds.bat"
132: and then run cmds.bat.
133:
1.2 mbalmer 134: 6. If the make succeeds, it will generate the programs "LESS.EXE" and
135: "LESSKEY.EXE" in your current directory. Test the generated programs.
1.1 etheisen 136:
1.2 mbalmer 137: 7. When satisfied that it works, you may wish to install LESS.EXE and
138: LESSKEY.EXE in a directory which is included in your PATH.
1.1 etheisen 139:
140:
141:
142: =======================================================================
1.2 mbalmer 143: INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only,
144: with Borland C or Microsoft Visual C++)
1.1 etheisen 145:
146: 1. Move the distributed source to its own directory.
147:
1.2 mbalmer 148: 2. If you are using Borland C, rename Makefile.wnb to Makefile.
149: If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile.
1.1 etheisen 150:
151: 3. Check the Makefile to make sure the definitions look ok.
152:
1.2 mbalmer 153: 4. If you wish, you may edit defines.wn to remove some optional features.
1.1 etheisen 154: If you choose not to include some features in your version, you may
1.2 mbalmer 155: wish to edit the manual page less.man and the help page help.c
1.1 etheisen 156: to remove the descriptions of the features which you are removing.
157:
158: 5. Type "make" and watch the fun.
159:
1.2 mbalmer 160: 6. If the make succeeds, it will generate the programs "less.exe" and
161: "lesskey.exe" in your current directory. Test the generated programs.
162:
163: 7. When satisfied that it works, if you wish to install it
164: in a public place, type "make install".
165: See step 6 of the Unix installation instructions for details
166: on how to change the default installation directories.
167:
168:
169:
170: =======================================================================
171: INSTALLATION (OS/2 systems only,
172: with EMX C)
173:
174: 1. Move the distributed source to its own directory.
175:
176: 2. Rename Makefile.o2e to Makefile.
177:
178: 3. Check the Makefile to make sure the definitions look ok.
179:
180: 4. If you wish, you may edit defines.o2 to remove some optional features.
181: If you choose not to include some features in your version, you may
182: wish to edit the manual page less.man and the help page help.c
183: to remove the descriptions of the features which you are removing.
184:
185: 5. Type "make" and watch the fun.
186:
187: 6. If the make succeeds, it will generate the programs "less.exe" and
188: "lesskey.exe" in your current directory. Test the generated programs.
1.1 etheisen 189:
190: 7. Make sure you have the emx runtime installed. You need the emx DLLs
191: emx.dll and emxlibcs.dll and also the termcap database, termcap.dat.
192: Make sure you have termcap.dat either in the default location or
193: somewhere in a directory listed in the PATH or INIT environment
194: variables.
195:
196: 8. When satisfied that it works, you may wish to install less.exe,
1.2 mbalmer 197: lesskey.exe and scrsize.exe in a directory which is included in
198: your PATH. scrsize.exe is required only if you use a terminal
199: emulator such as xterm or rxvt.
200:
201:
202:
203: =======================================================================
204: INSTALLATION (OS-9 systems only,
205: with Microware C or Ultra C)
1.1 etheisen 206:
1.2 mbalmer 207: 1. Move the distributed source to its own directory.
208:
209: 2. If you are using Microware C, rename Makefile.o9c to Makefile.
210: If you are using Ultra C, rename Makefile.o9u to Makefile.
211:
212: 3. Check the Makefile to make sure the definitions look ok.
213:
214: 4. If you wish, you may edit defines.o9 to remove some optional features.
215: If you choose not to include some features in your version, you may
216: wish to edit the manual page less.man and the help page help.c
217: to remove the descriptions of the features which you are removing.
218:
219: 5. Type "dmake" and watch the fun.
220: The standard OS-9 "make" will probably not work. If you don't
221: have dmake, you can get a copy from os9archive.rtsi.com.
222:
223: 6. If the make succeeds, it will generate the programs "less" and
224: "lesskey" in your current directory. Test the generated programs.
225:
226: 7. When satisfied that it works, if you wish to install it
227: in a public place, type "dmake install".
228: See step 6 of the Unix installation instructions for details
229: on how to change the default installation directories.
230:
231: =======================================================================
232: ACKNOWLEDGMENTS:
233: Some versions of the less distribution are packaged using
234: Info-ZIP's compression utility.
235: Info-ZIP's software is free and can be obtained as source
236: code or executables from various anonymous-ftp sites,
237: including ftp.uu.net:/pub/archiving/zip.
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