diff options
| -rw-r--r-- | NEWS | 36 |
1 files changed, 20 insertions, 16 deletions
@@ -14,38 +14,43 @@ Version 3.81.90 * Compiling GNU make now requires a conforming ISO C 1989 compiler and standard runtime library. -* The parser for variable assignments has been enhanced to allow multiple - modifiers ('export', 'override', 'private' (see below)) on the same line as - variables, including define/endef variables, and in any order. Also, it is - possible to create variables and targets named as these modifiers. +* WARNING: Backward-incompatibility! + The '$?' variable now contains all prerequisites that caused the target to + be considered out of date, even if they do not exist (previously only + existing targets were provided in $?). * WARNING: Backward-incompatibility! - As a result of the parser changes, two backward-compatibility issues exist: + As a result of parser enhancements, two backward-compatibility issues exist: first, a prerequisite containing an "=" cannot be escaped with a backslash any longer. You must create a variable containing an "=" and use that variable in the prerequisite. Second, variable names can no longer contain whitespace, unless you put the whitespace in a variable and use the variable. +* WARNING: Backward-incompatibility! + The pattern-specific variables and pattern rules are now applied in the + shortest stem first order instead of the definition order (variables + and rules with the same stem length are still applied in the definition + order). This produces the usually-desired behavior where more specific + patterns are preferred. To detect this feature search for 'shortest-stem' + in the .FEATURES special variable. + * New special variable: .RECIPEPREFIX allows you to reset the recipe introduction character from the default (TAB) to something else. The first character of this variable value is the new recipe introduction character. If the variable is set to the empty string, TAB is used again. It can be set and reset at will; recipes will use the value active when they were - first parsed. + first parsed. To detect this feature check the value of $(.RECIPEPREFIX). * New variable modifier 'private': prefixing a variable assignment with the modifier 'private' suppresses inheritance of that variable by prerequisites. This is most useful for target- and pattern-specific variables. -* WARNING: Backward-incompatibility! - The pattern-specific variables and pattern rules are now applied in the - shortest stem first order instead of the definition order (variables - and rules with the same stem length are still applied in the definition - order). This produces the usually-desired behavior where more specific - patterns are preferred. To detect this feature search for 'shortest-stem' - in the .FEATURES special variable. +* The parser for variable assignments has been enhanced to allow multiple + modifiers ('export', 'override', 'private') on the same line as variables, + including define/endef variables, and in any order. Also, it is possible + to create variables and targets named as these modifiers. * New make directive: 'undefine' allows you to undefine a variable so that it appears as if it was never set. Both $(flavor) and $(origin) @@ -1036,9 +1041,8 @@ Version 3.05 ------------------------------------------------------------------------------- Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, -1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software -Foundation, Inc. -This file is part of GNU Make. +1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free +Software Foundation, Inc. This file is part of GNU Make. GNU Make is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software |