README revision 221115
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 436 11 12 This is the distribution of less, version 436, released 07 Jul 2009. 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 or markn@greenwoodsoftware.com. 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 --with-secure 64 Builds a "secure" version of less, with some features disabled 65 to prevent users from viewing other files, accessing shell 66 commands, etc. 67 68 693. It is a good idea to look over the generated Makefile and defines.h 70 and make sure they look ok. If you know of any peculiarities of 71 your system that configure might not have detected, you may fix the 72 Makefile now. Take particular notice of the list of "terminal" 73 libraries in the LIBS definition in the Makefile; these may need 74 to be edited. The terminal libraries will be some subset of 75 -lncurses -lcurses -ltermcap -ltermlib 76 77 If you wish, you may edit defines.h to remove some optional features. 78 If you choose not to include some features in your version, you may 79 wish to edit the manual page "less.nro" and the help page "less.hlp" 80 to remove the descriptions of the features which you are removing. 81 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 82 834. Type "make" and watch the fun. 84 855. If the make succeeds, it will generate the programs "less", 86 "lesskey" and "lessecho" in your current directory. Test the 87 generated programs. 88 896. When satisfied that it works, if you wish to install it 90 in a public place, type "make install". 91 92 The default install destinations are: 93 Executables (less, lesskey, lessecho) in /usr/local/bin 94 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 95 If you want to install any of these files elsewhere, define 96 bindir and/or mandir to the appropriate directories. 97 98If you have any problems building or running "less", suggestions, 99complaints, etc., you may mail to the author at markn@greenwoodsoftware.com. 100 101Note to hackers: comments noting possible improvements are enclosed 102in double curly brackets {{ like this }}. 103 104 105 106======================================================================= 107INSTALLATION (MS-DOS systems only, 108 with Microsoft C, Borland C, or DJGPP) 109 1101. Move the distributed source to its own directory. 111 Depending on your compiler, you may need to convert the source 112 to have CR-LF rather than LF as line terminators. 113 1142. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 115 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 116 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 117 1183. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 119 are correct. CC should be the name of your C compiler and 120 LIBDIR should be the directory where the C libraries reside (for 121 Microsoft C only). If these definitions need to be changed, you can 122 either modify the definitions directly in MAKEFILE, or set your 123 environment variables CC and/or LIBDIR to override the definitions 124 in MAKEFILE. 125 1264. If you wish, you may edit DEFINES.DS to remove some optional features. 127 If you choose not to include some features in your version, you may 128 wish to edit the manual page LESS.MAN and the help page HELP.C 129 to remove the descriptions of the features which you are removing. 130 1315. Run your "make" program and watch the fun. 132 If your "make" requires a flag to import environment variables, 133 you should use that flag. 134 If your compiler runs out of memory, try running "make -n >cmds.bat" 135 and then run cmds.bat. 136 1376. If the make succeeds, it will generate the programs "LESS.EXE" and 138 "LESSKEY.EXE" in your current directory. Test the generated programs. 139 1407. When satisfied that it works, you may wish to install LESS.EXE and 141 LESSKEY.EXE in a directory which is included in your PATH. 142 143 144 145======================================================================= 146INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 147 with Borland C or Microsoft Visual C++) 148 1491. Move the distributed source to its own directory. 150 1512. If you are using Borland C, rename Makefile.wnb to Makefile. 152 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 153 1543. Check the Makefile to make sure the definitions look ok. 155 1564. If you wish, you may edit defines.wn to remove some optional features. 157 If you choose not to include some features in your version, you may 158 wish to edit the manual page less.man and the help page help.c 159 to remove the descriptions of the features which you are removing. 160 1615. Type "make" and watch the fun. 162 1636. If the make succeeds, it will generate the programs "less.exe" and 164 "lesskey.exe" in your current directory. Test the generated programs. 165 1667. When satisfied that it works, if you wish to install it 167 in a public place, type "make install". 168 See step 6 of the Unix installation instructions for details 169 on how to change the default installation directories. 170 171 172 173======================================================================= 174INSTALLATION (OS/2 systems only, 175 with EMX C) 176 1771. Move the distributed source to its own directory. 178 1792. Rename Makefile.o2e to Makefile. 180 1813. Check the Makefile to make sure the definitions look ok. 182 1834. If you wish, you may edit defines.o2 to remove some optional features. 184 If you choose not to include some features in your version, you may 185 wish to edit the manual page less.man and the help page help.c 186 to remove the descriptions of the features which you are removing. 187 1885. Type "make" and watch the fun. 189 1906. If the make succeeds, it will generate the programs "less.exe" and 191 "lesskey.exe" in your current directory. Test the generated programs. 192 1937. Make sure you have the emx runtime installed. You need the emx DLLs 194 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 195 Make sure you have termcap.dat either in the default location or 196 somewhere in a directory listed in the PATH or INIT environment 197 variables. 198 1998. When satisfied that it works, you may wish to install less.exe, 200 lesskey.exe and scrsize.exe in a directory which is included in 201 your PATH. scrsize.exe is required only if you use a terminal 202 emulator such as xterm or rxvt. 203 204 205 206======================================================================= 207INSTALLATION (OS-9 systems only, 208 with Microware C or Ultra C) 209 2101. Move the distributed source to its own directory. 211 2122. If you are using Microware C, rename Makefile.o9c to Makefile. 213 If you are using Ultra C, rename Makefile.o9u to Makefile. 214 2153. Check the Makefile to make sure the definitions look ok. 216 2174. If you wish, you may edit defines.o9 to remove some optional features. 218 If you choose not to include some features in your version, you may 219 wish to edit the manual page less.man and the help page help.c 220 to remove the descriptions of the features which you are removing. 221 2225. Type "dmake" and watch the fun. 223 The standard OS-9 "make" will probably not work. If you don't 224 have dmake, you can get a copy from os9archive.rtsi.com. 225 2266. If the make succeeds, it will generate the programs "less" and 227 "lesskey" in your current directory. Test the generated programs. 228 2297. When satisfied that it works, if you wish to install it 230 in a public place, type "dmake install". 231 See step 6 of the Unix installation instructions for details 232 on how to change the default installation directories. 233 234======================================================================= 235ACKNOWLEDGMENTS: 236 Some versions of the less distribution are packaged using 237 Info-ZIP's compression utility. 238 Info-ZIP's software is free and can be obtained as source 239 code or executables from various anonymous-ftp sites, 240 including ftp.uu.net:/pub/archiving/zip. 241