diff options
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 30 |
1 files changed, 24 insertions, 6 deletions
@@ -1,6 +1,6 @@ GNU make NEWS -*-indented-text-*- History of user-visible changes. - 1 April 2006 + 25 May 2009 See the end of this file for copyrights and conditions. @@ -14,12 +14,30 @@ 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! + As a result of the parser changes, 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. + * 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; rules will be parsed - according to the current value. + 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. + +* 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. Version 3.81 |