From: Dirk Mueller <dmuel...@suse.com> gcc 10 will default to -fno-common, which causes this error at link time:
(.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here This is because both dtc-lexer as well as dtc-parser define the same global symbol yyloc. Before with -fcommon those were merged into one defintion. The proper solution would be to to mark this as "extern", however that leads to: dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls] 26 | extern YYLTYPE yylloc; | ^~~~~~ In file included from dtc-lexer.l:24: dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here 127 | extern YYLTYPE yylloc; | ^~~~~~ cc1: all warnings being treated as errors which means the declaration is completely redundant and can just be dropped. Signed-off-by: Dirk Mueller <dmuel...@suse.com> Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> [robh: cherry-pick from upstream] Cc: sta...@vger.kernel.org Signed-off-by: Rob Herring <r...@kernel.org> [Cherry-picked from linux e33a814e772cdc36436c8c188d8c42d019fda639] Signed-off-by: Eneas U de Queiroz <cotequei...@gmail.com> --- I'm not sure I got the subject line right for this. This is supposed to go into git.openwrt.org/project/bcm63xx/u-boot.git I've stumbled upon the error while doing a test build for https://github.com/openwrt/openwrt/pull/9756 scripts/dtc/dtc-lexer.l | 1 - 1 file changed, 1 deletion(-) diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l index fd825ebba6..24af549977 100644 --- a/scripts/dtc/dtc-lexer.l +++ b/scripts/dtc/dtc-lexer.l @@ -38,7 +38,6 @@ LINECOMMENT "//".*\n #include "srcpos.h" #include "dtc-parser.tab.h" -YYLTYPE yylloc; extern bool treesource_error; /* CAUTION: this will stop working if we ever use yyless() or yyunput() */ _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel