1************************************************************************** 2************************************************************************** 3** ** 4** The FreeBSD Project has chosen to redistribute and modify Less under ** 5** the 'Less License' (as described in the 'LICENSE' file). ** 6** ** 7************************************************************************** 8************************************************************************** 9 10 Less, version 551 11 12 This is the distribution of less, version 551, released 11 Jun 2019. 13 This program is part of the GNU project (http://www.gnu.org). 14 15 This program is free software. You may redistribute it and/or 16 modify it under the terms of either: 17 18 1. The GNU General Public License, as published by the Free 19 Software Foundation; either version 3, or (at your option) any 20 later version. A copy of this license is in the file COPYING. 21 or 22 2. The Less License, in the file LICENSE. 23 24 Please report any problems to bug-less@gnu.org. 25 See http://www.greenwoodsoftware.com/less for the latest info. 26 Source repository is at https://github.com/gwsw/less.git. 27 28========================================================================= 29 30This is the distribution of "less", a paginator similar to "more" or "pg". 31 32The formatted manual page is in less.man. 33The manual page nroff source is in less.nro. 34Major changes made since the last posted version are in NEWS. 35 36======================================================================= 37INSTALLATION (Unix systems only): 38 391. Move the distributed source to its own directory and unpack it, 40 if you have not already done so. 41 422. Type "sh configure". 43 This will generate a Makefile and a defines.h. 44 Warning: if you have a GNU sed, make sure it is version 2.05 or later. 45 46 The file INSTALL describes the usage of the configure program in 47 general. In addition, these options to configure are supported: 48 49 --with-editor=program 50 Specifies the default editor program used by the "v" command. 51 The default is "vi". 52 53 --with-regex=lib 54 Specifies the regular expression library used by less for pattern 55 matching. The default is "auto", which means the configure program 56 finds a regular expression library automatically. Other values are: 57 gnu Use the GNU regex library. 58 pcre Use the PCRE library. 59 pcre2 Use the PCRE2 library. 60 posix Use the POSIX-compatible regcomp. 61 regcmp Use the regcmp library. 62 re_comp Use the re_comp library. 63 regcomp Use the V8-compatible regcomp. 64 regcomp-local Use Henry Spencer's V8-compatible regcomp 65 (source is supplied with less). 66 none No regular expressions, only simple string matching. 67 68 --with-secure 69 Builds a "secure" version of less, with some features disabled 70 to prevent users from viewing other files, accessing shell 71 commands, etc. 72 73 743. It is a good idea to look over the generated Makefile and defines.h 75 and make sure they look ok. If you know of any peculiarities of 76 your system that configure might not have detected, you may fix the 77 Makefile now. Take particular notice of the list of "terminal" 78 libraries in the LIBS definition in the Makefile; these may need 79 to be edited. The terminal libraries will be some subset of 80 -lncurses -lcurses -ltermcap -ltermlib 81 82 If you wish, you may edit defines.h to remove some optional features. 83 If you choose not to include some features in your version, you may 84 wish to edit the manual page "less.nro" and the help page "less.hlp" 85 to remove the descriptions of the features which you are removing. 86 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 87 884. Type "make" and watch the fun. 89 905. If the make succeeds, it will generate the programs "less", 91 "lesskey" and "lessecho" in your current directory. Test the 92 generated programs. 93 946. When satisfied that it works, if you wish to install it 95 in a public place, type "make install". 96 97 The default install destinations are: 98 Executables (less, lesskey, lessecho) in /usr/local/bin 99 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 100 If you want to install any of these files elsewhere, define 101 bindir and/or mandir to the appropriate directories. 102 103If you have any problems building or running "less", suggestions, 104complaints, etc., you may mail to bug-less@gnu.org. 105 106Note to hackers: comments noting possible improvements are enclosed 107in double curly brackets {{ like this }}. 108 109(Note that the above note was originally written at a time when 110"hackers" most commonly meant "enthusiastic and dedicated computer 111programmers", not "persons who attempt to circumvent computer security".) 112 113 114 115======================================================================= 116INSTALLATION (MS-DOS systems only, 117 with Microsoft C, Borland C, or DJGPP) 118 1191. Move the distributed source to its own directory. 120 Depending on your compiler, you may need to convert the source 121 to have CR-LF rather than LF as line terminators. 122 1232. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 124 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 125 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 126 1273. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 128 are correct. CC should be the name of your C compiler and 129 LIBDIR should be the directory where the C libraries reside (for 130 Microsoft C only). If these definitions need to be changed, you can 131 either modify the definitions directly in MAKEFILE, or set your 132 environment variables CC and/or LIBDIR to override the definitions 133 in MAKEFILE. 134 1354. If you wish, you may edit DEFINES.DS to remove some optional features. 136 If you choose not to include some features in your version, you may 137 wish to edit the manual page LESS.MAN and the help page HELP.C 138 to remove the descriptions of the features which you are removing. 139 1405. Run your "make" program and watch the fun. 141 If your "make" requires a flag to import environment variables, 142 you should use that flag. 143 If your compiler runs out of memory, try running "make -n >cmds.bat" 144 and then run cmds.bat. 145 1466. If the make succeeds, it will generate the programs "LESS.EXE" and 147 "LESSKEY.EXE" in your current directory. Test the generated programs. 148 1497. When satisfied that it works, you may wish to install LESS.EXE and 150 LESSKEY.EXE in a directory which is included in your PATH. 151 152 153 154======================================================================= 155INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 156 with Borland C or Microsoft Visual C++) 157 1581. Move the distributed source to its own directory. 159 1602. If you are using Borland C, rename Makefile.wnb to Makefile. 161 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 162 1633. Check the Makefile to make sure the definitions look ok. 164 1654. If you wish, you may edit defines.wn to remove some optional features. 166 If you choose not to include some features in your version, you may 167 wish to edit the manual page less.man and the help page help.c 168 to remove the descriptions of the features which you are removing. 169 1705. Type "make" and watch the fun. 171 1726. If the make succeeds, it will generate the programs "less.exe" and 173 "lesskey.exe" in your current directory. Test the generated programs. 174 1757. When satisfied that it works, if you wish to install it 176 in a public place, type "make install". 177 See step 6 of the Unix installation instructions for details 178 on how to change the default installation directories. 179 180 181 182======================================================================= 183INSTALLATION (OS/2 systems only, 184 with EMX C) 185 1861. Move the distributed source to its own directory. 187 1882. Rename Makefile.o2e to Makefile. 189 1903. Check the Makefile to make sure the definitions look ok. 191 1924. If you wish, you may edit defines.o2 to remove some optional features. 193 If you choose not to include some features in your version, you may 194 wish to edit the manual page less.man and the help page help.c 195 to remove the descriptions of the features which you are removing. 196 1975. Type "make" and watch the fun. 198 1996. If the make succeeds, it will generate the programs "less.exe" and 200 "lesskey.exe" in your current directory. Test the generated programs. 201 2027. Make sure you have the emx runtime installed. You need the emx DLLs 203 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 204 Make sure you have termcap.dat either in the default location or 205 somewhere in a directory listed in the PATH or INIT environment 206 variables. 207 2088. When satisfied that it works, you may wish to install less.exe, 209 lesskey.exe and scrsize.exe in a directory which is included in 210 your PATH. scrsize.exe is required only if you use a terminal 211 emulator such as xterm or rxvt. 212 213 214 215======================================================================= 216INSTALLATION (OS-9 systems only, 217 with Microware C or Ultra C) 218 2191. Move the distributed source to its own directory. 220 2212. If you are using Microware C, rename Makefile.o9c to Makefile. 222 If you are using Ultra C, rename Makefile.o9u to Makefile. 223 2243. Check the Makefile to make sure the definitions look ok. 225 2264. If you wish, you may edit defines.o9 to remove some optional features. 227 If you choose not to include some features in your version, you may 228 wish to edit the manual page less.man and the help page help.c 229 to remove the descriptions of the features which you are removing. 230 2315. Type "dmake" and watch the fun. 232 The standard OS-9 "make" will probably not work. If you don't 233 have dmake, you can get a copy from os9archive.rtsi.com. 234 2356. If the make succeeds, it will generate the programs "less" and 236 "lesskey" in your current directory. Test the generated programs. 237 2387. When satisfied that it works, if you wish to install it 239 in a public place, type "dmake install". 240 See step 6 of the Unix installation instructions for details 241 on how to change the default installation directories. 242 243======================================================================= 244ACKNOWLEDGMENTS: 245 Some versions of the less distribution are packaged using 246 Info-ZIP's compression utility. 247 Info-ZIP's software is free and can be obtained as source 248 code or executables from various anonymous-ftp sites, 249 including ftp.uu.net:/pub/archiving/zip. 250