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aad3eb1ffe
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 <lzfse.h> header,
similarly to how we deal with the GtkItemFactoryCallback
prototype from <gtk/gtkitemfactory.h>, indirectly included
by <gtk/gtk.h>.
Cc: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20230327151349.97572-1-philmd@linaro.org>
53 lines
2 KiB
C
53 lines
2 KiB
C
/*
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* DMG lzfse uncompression
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*
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* Copyright (c) 2018 Julio Cesar Faracco
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "dmg.h"
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/* Work around a -Wstrict-prototypes warning in LZFSE headers */
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wstrict-prototypes"
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#include <lzfse.h>
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#pragma GCC diagnostic pop
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static int dmg_uncompress_lzfse_do(char *next_in, unsigned int avail_in,
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char *next_out, unsigned int avail_out)
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{
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size_t out_size = lzfse_decode_buffer((uint8_t *) next_out, avail_out,
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(uint8_t *) next_in, avail_in,
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NULL);
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/* We need to decode the single chunk only. */
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/* So, out_size == avail_out is not an error here. */
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if (out_size > 0) {
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return out_size;
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}
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return -1;
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}
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__attribute__((constructor))
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static void dmg_lzfse_init(void)
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{
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assert(!dmg_uncompress_lzfse);
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dmg_uncompress_lzfse = dmg_uncompress_lzfse_do;
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}
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