From aad3eb1ffeb65205153fb31d81d4f268186cde7a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 24 Mar 2023 15:47:01 +0100 Subject: [PATCH] block/dmg: Ignore C99 prototype declaration mismatch from MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When liblzfe (Apple LZFSE compression library) is present (for example installed via 'brew') on Darwin, QEMU build fails as: Has header "lzfse.h" : YES Library lzfse found: YES Dependencies lzo support : NO snappy support : NO bzip2 support : YES lzfse support : YES zstd support : YES 1.5.2 User defined options dmg : enabled lzfse : enabled [221/903] Compiling C object libblock.fa.p/block_dmg-lzfse.c.o FAILED: libblock.fa.p/block_dmg-lzfse.c.o /opt/homebrew/Cellar/lzfse/1.0/include/lzfse.h:56:43: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes] LZFSE_API size_t lzfse_encode_scratch_size(); ^ void /opt/homebrew/Cellar/lzfse/1.0/include/lzfse.h:94:43: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes] LZFSE_API size_t lzfse_decode_scratch_size(); ^ void 2 errors generated. ninja: build stopped: subcommand failed. This issue has been reported in the lzfse project in 2016: https://github.com/lzfse/lzfse/issues/3#issuecomment-226574719 Since the project seems unmaintained, simply ignore the strict-prototypes warning check for the header, similarly to how we deal with the GtkItemFactoryCallback prototype from , indirectly included by . Cc: Julio Faracco Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Stefan Weil Message-Id: <20230327151349.97572-1-philmd@linaro.org> --- block/dmg-lzfse.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/block/dmg-lzfse.c b/block/dmg-lzfse.c index 6798cf4fbf..4ea0b9b20d 100644 --- a/block/dmg-lzfse.c +++ b/block/dmg-lzfse.c @@ -23,7 +23,12 @@ */ #include "qemu/osdep.h" #include "dmg.h" + +/* Work around a -Wstrict-prototypes warning in LZFSE headers */ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wstrict-prototypes" #include +#pragma GCC diagnostic pop static int dmg_uncompress_lzfse_do(char *next_in, unsigned int avail_in, char *next_out, unsigned int avail_out)