From 8ebaf3f665ddc7e4f19c613005050dde5ccbe499 Mon Sep 17 00:00:00 2001 From: Jia Tan Date: Wed, 27 Sep 2023 00:02:11 +0800 Subject: [PATCH] liblzma: Avoid compiler warning without creating extra symbol. When the generic fast crc64 method is used, then we omit lzma_crc64_table[][]. Similar to d9166b52cf3458a4da3eb92224837ca8fc208d79, we can avoid compiler warnings with -Wempty-translation-unit (Clang) or -pedantic (GCC) by creating a never used typedef instead of an extra symbol. --- src/liblzma/check/crc64_table.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/liblzma/check/crc64_table.c b/src/liblzma/check/crc64_table.c index 241adcd4..6f9adb04 100644 --- a/src/liblzma/check/crc64_table.c +++ b/src/liblzma/check/crc64_table.c @@ -20,8 +20,7 @@ || (defined(__e2k__) && __iset__ >= 6) // No table needed but something has to be exported to keep some toolchains // happy. Also use a declaration to silence compiler warnings. -extern const char lzma_crc64_dummy; -const char lzma_crc64_dummy; +typedef void lzma_crc64_dummy; #else // Having the declaration here silences clang -Wmissing-variable-declarations.