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2007-01-30 Paolo Bonzini <bonzini@gnu.org>

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* data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
	Complain if the value does not match empty, "true" or "false".
	* data/c++.m4: Adjust default definitions of %define variables.
	* data/java.m4: Adjust default definitions of %define variables.
	* doc/bison.texinfo (Decl Summary): Adjust the %define entry according
	to above behavior.
	* tests/input.at (Boolean %define variables): Test new behavior.
This commit is contained in:
Paolo Bonzini
2007-01-30 08:01:29 +00:00
parent 8405b70c05
commit c1d19e10c3
6 changed files with 49 additions and 16 deletions
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data/java.m4
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@@ -34,13 +34,13 @@ m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])])
# b4_public_if(TRUE, FALSE)
# -------------------------
b4_percent_define_default([public], 0)
b4_percent_define_default([[public]], [[false]])
m4_define([b4_public_if],
[b4_percent_define_flag_if([public], [$1], [$2])])
# b4_single_class_if(TRUE, FALSE)
# -------------------------------
b4_percent_define_default([single_class], 0)
b4_percent_define_default([[single_class]], [[false]])
m4_define([b4_single_class_if],
[b4_percent_define_flag_if([single_class], [$1], [$2])])