From 82bc8bd82e5c4e6e53d4ba20bb89cec6a91d8702 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 28 May 2018 18:21:52 +0900 Subject: 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-$(CONFIG_FOO) += foo.o Do likewise in Kconfig. Signed-off-by: Masahiro Yamada --- scripts/kconfig/zconf.l | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'scripts') diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l index a6cbe2d06d01..25bd2b89fe3f 100644 --- a/scripts/kconfig/zconf.l +++ b/scripts/kconfig/zconf.l @@ -114,6 +114,13 @@ n [A-Za-z0-9_-] yylval.string = text; return T_VARIABLE; } + ({n}|$)+ { + /* 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_SIMPLE; return T_ASSIGN; } "+=" { BEGIN(ASSIGN_VAL); yylval.flavor = VAR_APPEND; return T_ASSIGN; } -- cgit v1.2.3