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 451 11 12 This is the distribution of less, version 451, released 21 Jul 2012. 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 27========================================================================= 28 29This is the distribution of "less", a paginator similar to "more" or "pg". 30 31The formatted manual page is in less.man. 32The manual page nroff source is in less.nro. 33Major changes made since the last posted version are in NEWS. 34 35======================================================================= 36INSTALLATION (Unix systems only): 37 381. Move the distributed source to its own directory and unpack it, 39 if you have not already done so. 40 412. Type "sh configure". 42 This will generate a Makefile and a defines.h. 43 Warning: if you have a GNU sed, make sure it is version 2.05 or later. 44 45 The file INSTALL describes the usage of the configure program in 46 general. In addition, these options to configure are supported: 47 48 --with-editor=program 49 Specifies the default editor program used by the "v" command. 50 The default is "vi". 51 52 --with-regex=lib 53 Specifies the regular expression library used by less for pattern 54 matching. The default is "auto", which means the configure program 55 finds a regular expression library automatically. Other values are: 56 posix Use the POSIX-compatible regcomp. 57 pcre Use the PCRE library. 58 regcmp Use the regcmp library. 59 re_comp Use the re_comp library. 60 regcomp Use the V8-compatible regcomp. 61 regcomp-local Use Henry Spencer's V8-compatible regcomp 62 (source is supplied with less). 63 none No regular expressions, only simple string matching. 64 --with-secure 65 Builds a "secure" version of less, with some features disabled 66 to prevent users from viewing other files, accessing shell 67 commands, etc. 68 69 703. It is a good idea to look over the generated Makefile and defines.h 71 and make sure they look ok. If you know of any peculiarities of 72 your system that configure might not have detected, you may fix the 73 Makefile now. Take particular notice of the list of "terminal" 74 libraries in the LIBS definition in the Makefile; these may need 75 to be edited. The terminal libraries will be some subset of 76 -lncurses -lcurses -ltermcap -ltermlib 77 78 If you wish, you may edit defines.h to remove some optional features. 79 If you choose not to include some features in your version, you may 80 wish to edit the manual page "less.nro" and the help page "less.hlp" 81 to remove the descriptions of the features which you are removing. 82 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 83 844. Type "make" and watch the fun. 85 865. If the make succeeds, it will generate the programs "less", 87 "lesskey" and "lessecho" in your current directory. Test the 88 generated programs. 89 906. When satisfied that it works, if you wish to install it 91 in a public place, type "make install". 92 93 The default install destinations are: 94 Executables (less, lesskey, lessecho) in /usr/local/bin 95 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 96 If you want to install any of these files elsewhere, define 97 bindir and/or mandir to the appropriate directories. 98 99If you have any problems building or running "less", suggestions, 100complaints, etc., you may mail to bug-less@gnu.org. 101 102Note to hackers: comments noting possible improvements are enclosed 103in double curly brackets {{ like this }}. 104 105(Note that the above note was originally written at a time when 106"hackers" most commonly meant "enthusiastic and dedicated computer 107programmers", not "persons who attempt to circumvent computer security".) 108 109 110 111======================================================================= 112INSTALLATION (MS-DOS systems only, 113 with Microsoft C, Borland C, or DJGPP) 114 1151. Move the distributed source to its own directory. 116 Depending on your compiler, you may need to convert the source 117 to have CR-LF rather than LF as line terminators. 118 1192. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 120 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 121 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 122 1233. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 124 are correct. CC should be the name of your C compiler and 125 LIBDIR should be the directory where the C libraries reside (for 126 Microsoft C only). If these definitions need to be changed, you can 127 either modify the definitions directly in MAKEFILE, or set your 128 environment variables CC and/or LIBDIR to override the definitions 129 in MAKEFILE. 130 1314. If you wish, you may edit DEFINES.DS to remove some optional features. 132 If you choose not to include some features in your version, you may 133 wish to edit the manual page LESS.MAN and the help page HELP.C 134 to remove the descriptions of the features which you are removing. 135 1365. Run your "make" program and watch the fun. 137 If your "make" requires a flag to import environment variables, 138 you should use that flag. 139 If your compiler runs out of memory, try running "make -n >cmds.bat" 140 and then run cmds.bat. 141 1426. If the make succeeds, it will generate the programs "LESS.EXE" and 143 "LESSKEY.EXE" in your current directory. Test the generated programs. 144 1457. When satisfied that it works, you may wish to install LESS.EXE and 146 LESSKEY.EXE in a directory which is included in your PATH. 147 148 149 150======================================================================= 151INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 152 with Borland C or Microsoft Visual C++) 153 1541. Move the distributed source to its own directory. 155 1562. If you are using Borland C, rename Makefile.wnb to Makefile. 157 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 158 1593. Check the Makefile to make sure the definitions look ok. 160 1614. If you wish, you may edit defines.wn to remove some optional features. 162 If you choose not to include some features in your version, you may 163 wish to edit the manual page less.man and the help page help.c 164 to remove the descriptions of the features which you are removing. 165 1665. Type "make" and watch the fun. 167 1686. If the make succeeds, it will generate the programs "less.exe" and 169 "lesskey.exe" in your current directory. Test the generated programs. 170 1717. When satisfied that it works, if you wish to install it 172 in a public place, type "make install". 173 See step 6 of the Unix installation instructions for details 174 on how to change the default installation directories. 175 176 177 178======================================================================= 179INSTALLATION (OS/2 systems only, 180 with EMX C) 181 1821. Move the distributed source to its own directory. 183 1842. Rename Makefile.o2e to Makefile. 185 1863. Check the Makefile to make sure the definitions look ok. 187 1884. If you wish, you may edit defines.o2 to remove some optional features. 189 If you choose not to include some features in your version, you may 190 wish to edit the manual page less.man and the help page help.c 191 to remove the descriptions of the features which you are removing. 192 1935. Type "make" and watch the fun. 194 1956. If the make succeeds, it will generate the programs "less.exe" and 196 "lesskey.exe" in your current directory. Test the generated programs. 197 1987. Make sure you have the emx runtime installed. You need the emx DLLs 199 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 200 Make sure you have termcap.dat either in the default location or 201 somewhere in a directory listed in the PATH or INIT environment 202 variables. 203 2048. When satisfied that it works, you may wish to install less.exe, 205 lesskey.exe and scrsize.exe in a directory which is included in 206 your PATH. scrsize.exe is required only if you use a terminal 207 emulator such as xterm or rxvt. 208 209 210 211======================================================================= 212INSTALLATION (OS-9 systems only, 213 with Microware C or Ultra C) 214 2151. Move the distributed source to its own directory. 216 2172. If you are using Microware C, rename Makefile.o9c to Makefile. 218 If you are using Ultra C, rename Makefile.o9u to Makefile. 219 2203. Check the Makefile to make sure the definitions look ok. 221 2224. If you wish, you may edit defines.o9 to remove some optional features. 223 If you choose not to include some features in your version, you may 224 wish to edit the manual page less.man and the help page help.c 225 to remove the descriptions of the features which you are removing. 226 2275. Type "dmake" and watch the fun. 228 The standard OS-9 "make" will probably not work. If you don't 229 have dmake, you can get a copy from os9archive.rtsi.com. 230 2316. If the make succeeds, it will generate the programs "less" and 232 "lesskey" in your current directory. Test the generated programs. 233 2347. When satisfied that it works, if you wish to install it 235 in a public place, type "dmake install". 236 See step 6 of the Unix installation instructions for details 237 on how to change the default installation directories. 238 239======================================================================= 240ACKNOWLEDGMENTS: 241 Some versions of the less distribution are packaged using 242 Info-ZIP's compression utility. 243 Info-ZIP's software is free and can be obtained as source 244 code or executables from various anonymous-ftp sites, 245 including ftp.uu.net:/pub/archiving/zip. 246