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Massage the NEWS file
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1 changed files with 24 additions and 20 deletions
44
NEWS
44
NEWS
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@ -14,31 +14,19 @@ Version 3.81.90
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* Compiling GNU make now requires a conforming ISO C 1989 compiler and
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* Compiling GNU make now requires a conforming ISO C 1989 compiler and
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standard runtime library.
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standard runtime library.
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* The parser for variable assignments has been enhanced to allow multiple
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* WARNING: Backward-incompatibility!
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modifiers ('export', 'override', 'private' (see below)) on the same line as
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The '$?' variable now contains all prerequisites that caused the target to
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variables, including define/endef variables, and in any order. Also, it is
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be considered out of date, even if they do not exist (previously only
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possible to create variables and targets named as these modifiers.
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existing targets were provided in $?).
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* WARNING: Backward-incompatibility!
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* WARNING: Backward-incompatibility!
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As a result of the parser changes, two backward-compatibility issues exist:
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As a result of parser enhancements, two backward-compatibility issues exist:
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first, a prerequisite containing an "=" cannot be escaped with a backslash
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first, a prerequisite containing an "=" cannot be escaped with a backslash
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any longer. You must create a variable containing an "=" and use that
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any longer. You must create a variable containing an "=" and use that
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variable in the prerequisite. Second, variable names can no longer contain
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variable in the prerequisite. Second, variable names can no longer contain
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whitespace, unless you put the whitespace in a variable and use the
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whitespace, unless you put the whitespace in a variable and use the
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variable.
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variable.
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* New special variable: .RECIPEPREFIX allows you to reset the recipe
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introduction character from the default (TAB) to something else. The first
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character of this variable value is the new recipe introduction character.
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If the variable is set to the empty string, TAB is used again. It can be
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set and reset at will; recipes will use the value active when they were
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first parsed.
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* New variable modifier 'private': prefixing a variable assignment with the
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modifier 'private' suppresses inheritance of that variable by
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prerequisites. This is most useful for target- and pattern-specific
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variables.
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* WARNING: Backward-incompatibility!
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* WARNING: Backward-incompatibility!
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The pattern-specific variables and pattern rules are now applied in the
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The pattern-specific variables and pattern rules are now applied in the
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shortest stem first order instead of the definition order (variables
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shortest stem first order instead of the definition order (variables
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@ -47,6 +35,23 @@ Version 3.81.90
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patterns are preferred. To detect this feature search for 'shortest-stem'
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patterns are preferred. To detect this feature search for 'shortest-stem'
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in the .FEATURES special variable.
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in the .FEATURES special variable.
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* New special variable: .RECIPEPREFIX allows you to reset the recipe
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introduction character from the default (TAB) to something else. The first
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character of this variable value is the new recipe introduction character.
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If the variable is set to the empty string, TAB is used again. It can be
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set and reset at will; recipes will use the value active when they were
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first parsed. To detect this feature check the value of $(.RECIPEPREFIX).
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* New variable modifier 'private': prefixing a variable assignment with the
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modifier 'private' suppresses inheritance of that variable by
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prerequisites. This is most useful for target- and pattern-specific
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variables.
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* The parser for variable assignments has been enhanced to allow multiple
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modifiers ('export', 'override', 'private') on the same line as variables,
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including define/endef variables, and in any order. Also, it is possible
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to create variables and targets named as these modifiers.
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* New make directive: 'undefine' allows you to undefine a variable so
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* New make directive: 'undefine' allows you to undefine a variable so
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that it appears as if it was never set. Both $(flavor) and $(origin)
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that it appears as if it was never set. Both $(flavor) and $(origin)
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functions will return 'undefined' for such a variable. To detect this
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functions will return 'undefined' for such a variable. To detect this
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@ -1036,9 +1041,8 @@ Version 3.05
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
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1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free
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Foundation, Inc.
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Software Foundation, Inc. This file is part of GNU Make.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify it under the
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GNU Make is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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terms of the GNU General Public License as published by the Free Software
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