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Commit 82bc8bd8 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kconfig: expand lefthand side of assignment statement 



Make expands the lefthand side of assignment statements.  In fact,
Kbuild relies on it since kernel makefiles mostly look like this:

  obj-$(CONFIG_FOO) += foo.o

Do likewise in Kconfig.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent ed2a22f2

scripts/kconfig/zconf.l

+7 −0
Original line number Original line Diff line number Diff line
@@ -114,6 +114,13 @@ n [A-Za-z0-9_-] 
		yylval.string = text;

		yylval.string = text;

		return T_VARIABLE;

		return T_VARIABLE;

	}

	}

	({n}|$)+	{

		/* this token includes at least one '$' */

		yylval.string = expand_token(yytext, yyleng);

		if (strlen(yylval.string))

			return T_VARIABLE;

		free(yylval.string);

	}

	"="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_RECURSIVE; return T_ASSIGN; }

	"="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_RECURSIVE; return T_ASSIGN; }

	":="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_SIMPLE; return T_ASSIGN; }

	":="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_SIMPLE; return T_ASSIGN; }

	"+="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_APPEND; return T_ASSIGN; }

	"+="	{ BEGIN(ASSIGN_VAL); yylval.flavor = VAR_APPEND; return T_ASSIGN; }