README revision 173932
1 2 Less, version 416 3 4 This is the distribution of less, version 416, released 22 Nov 2007. 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 11 Software Foundation; either version 2, or (at your option) any 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 16 Please report any problems to bug-less@gnu.org or markn@greenwoodsoftware.com. 17 See http://www.greenwoodsoftware.com/less for the latest info. 18 You may also contact the author at: 19 Mark Nudelman 20 Greenwood Software 21 PO Box 2402 22 El Granada, CA 94018 23 USA 24 25========================================================================= 26 27This is the distribution of "less", a paginator similar to "more" or "pg". 28 29The formatted manual page is in less.man. 30The manual page nroff source is in less.nro. 31Major changes made since the last posted version are in NEWS. 32 33======================================================================= 34INSTALLATION (Unix systems only): 35 361. Move the distributed source to its own directory and unpack it, 37 if you have not already done so. 38 392. Type "sh configure". 40 This will generate a Makefile and a defines.h. 41 Warning: if you have a GNU sed, make sure it is version 2.05 or later. 42 43 The file INSTALL describes the usage of the configure program in 44 general. In addition, these options to configure are supported: 45 46 --with-editor=program 47 Specifies the default editor program used by the "v" command. 48 The default is "vi". 49 50 --with-regex=lib 51 Specifies the regular expression library used by less for pattern 52 matching. The default is "auto", which means the configure program 53 finds a regular expression library automatically. Other values are: 54 posix Use the POSIX-compatible regcomp. 55 pcre Use the PCRE library. 56 regcmp Use the regcmp library. 57 re_comp Use the re_comp library. 58 regcomp Use the V8-compatible regcomp. 59 regcomp-local Use Henry Spencer's V8-compatible regcomp 60 (source is supplied with less). 61 --with-secure 62 Builds a "secure" version of less, with some features disabled 63 to prevent users from viewing other files, accessing shell 64 commands, etc. 65 66 673. It is a good idea to look over the generated Makefile and defines.h 68 and make sure they look ok. If you know of any peculiarities of 69 your system that configure might not have detected, you may fix the 70 Makefile now. Take particular notice of the list of "terminal" 71 libraries in the LIBS definition in the Makefile; these may need 72 to be edited. The terminal libraries will be some subset of 73 -lncurses -lcurses -ltermcap -ltermlib 74 75 If you wish, you may edit defines.h to remove some optional features. 76 If you choose not to include some features in your version, you may 77 wish to edit the manual page "less.nro" and the help page "less.hlp" 78 to remove the descriptions of the features which you are removing. 79 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 80 814. Type "make" and watch the fun. 82 835. If the make succeeds, it will generate the programs "less", 84 "lesskey" and "lessecho" in your current directory. Test the 85 generated programs. 86 876. When satisfied that it works, if you wish to install it 88 in a public place, type "make install". 89 90 The default install destinations are: 91 Executables (less, lesskey, lessecho) in /usr/local/bin 92 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 93 If you want to install any of these files elsewhere, define 94 bindir and/or mandir to the appropriate directories. 95 96If you have any problems building or running "less", suggestions, 97complaints, etc., you may mail to the author at markn@greenwoodsoftware.com. 98 99Note to hackers: comments noting possible improvements are enclosed 100in double curly brackets {{ like this }}. 101 102 103 104======================================================================= 105INSTALLATION (MS-DOS systems only, 106 with Microsoft C, Borland C, or DJGPP) 107 1081. Move the distributed source to its own directory. 109 Depending on your compiler, you may need to convert the source 110 to have CR-LF rather than LF as line terminators. 111 1122. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 113 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 114 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 115 1163. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 117 are correct. CC should be the name of your C compiler and 118 LIBDIR should be the directory where the C libraries reside (for 119 Microsoft C only). If these definitions need to be changed, you can 120 either modify the definitions directly in MAKEFILE, or set your 121 environment variables CC and/or LIBDIR to override the definitions 122 in MAKEFILE. 123 1244. If you wish, you may edit DEFINES.DS to remove some optional features. 125 If you choose not to include some features in your version, you may 126 wish to edit the manual page LESS.MAN and the help page HELP.C 127 to remove the descriptions of the features which you are removing. 128 1295. Run your "make" program and watch the fun. 130 If your "make" requires a flag to import environment variables, 131 you should use that flag. 132 If your compiler runs out of memory, try running "make -n >cmds.bat" 133 and then run cmds.bat. 134 1356. If the make succeeds, it will generate the programs "LESS.EXE" and 136 "LESSKEY.EXE" in your current directory. Test the generated programs. 137 1387. When satisfied that it works, you may wish to install LESS.EXE and 139 LESSKEY.EXE in a directory which is included in your PATH. 140 141 142 143======================================================================= 144INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 145 with Borland C or Microsoft Visual C++) 146 1471. Move the distributed source to its own directory. 148 1492. If you are using Borland C, rename Makefile.wnb to Makefile. 150 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 151 1523. Check the Makefile to make sure the definitions look ok. 153 1544. If you wish, you may edit defines.wn to remove some optional features. 155 If you choose not to include some features in your version, you may 156 wish to edit the manual page less.man and the help page help.c 157 to remove the descriptions of the features which you are removing. 158 1595. Type "make" and watch the fun. 160 1616. If the make succeeds, it will generate the programs "less.exe" and 162 "lesskey.exe" in your current directory. Test the generated programs. 163 1647. When satisfied that it works, if you wish to install it 165 in a public place, type "make install". 166 See step 6 of the Unix installation instructions for details 167 on how to change the default installation directories. 168 169 170 171======================================================================= 172INSTALLATION (OS/2 systems only, 173 with EMX C) 174 1751. Move the distributed source to its own directory. 176 1772. Rename Makefile.o2e to Makefile. 178 1793. Check the Makefile to make sure the definitions look ok. 180 1814. If you wish, you may edit defines.o2 to remove some optional features. 182 If you choose not to include some features in your version, you may 183 wish to edit the manual page less.man and the help page help.c 184 to remove the descriptions of the features which you are removing. 185 1865. Type "make" and watch the fun. 187 1886. If the make succeeds, it will generate the programs "less.exe" and 189 "lesskey.exe" in your current directory. Test the generated programs. 190 1917. Make sure you have the emx runtime installed. You need the emx DLLs 192 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 193 Make sure you have termcap.dat either in the default location or 194 somewhere in a directory listed in the PATH or INIT environment 195 variables. 196 1978. When satisfied that it works, you may wish to install less.exe, 198 lesskey.exe and scrsize.exe in a directory which is included in 199 your PATH. scrsize.exe is required only if you use a terminal 200 emulator such as xterm or rxvt. 201 202 203 204======================================================================= 205INSTALLATION (OS-9 systems only, 206 with Microware C or Ultra C) 207 2081. Move the distributed source to its own directory. 209 2102. If you are using Microware C, rename Makefile.o9c to Makefile. 211 If you are using Ultra C, rename Makefile.o9u to Makefile. 212 2133. Check the Makefile to make sure the definitions look ok. 214 2154. If you wish, you may edit defines.o9 to remove some optional features. 216 If you choose not to include some features in your version, you may 217 wish to edit the manual page less.man and the help page help.c 218 to remove the descriptions of the features which you are removing. 219 2205. Type "dmake" and watch the fun. 221 The standard OS-9 "make" will probably not work. If you don't 222 have dmake, you can get a copy from os9archive.rtsi.com. 223 2246. If the make succeeds, it will generate the programs "less" and 225 "lesskey" in your current directory. Test the generated programs. 226 2277. When satisfied that it works, if you wish to install it 228 in a public place, type "dmake install". 229 See step 6 of the Unix installation instructions for details 230 on how to change the default installation directories. 231 232======================================================================= 233ACKNOWLEDGMENTS: 234 Some versions of the less distribution are packaged using 235 Info-ZIP's compression utility. 236 Info-ZIP's software is free and can be obtained as source 237 code or executables from various anonymous-ftp sites, 238 including ftp.uu.net:/pub/archiving/zip. 239