From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: "SZEDER Gábor" <szeder.dev@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>,
Jonathan Nieder <jrnieder@gmail.com>,
Johannes Schindelin <Johannes.Schindelin@gmx.de>,
git@vger.kernel.org
Subject: Re: [PATCH 1/5] compat/obstack: fix -Wcast-function-type warnings
Date: Fri, 21 Dec 2018 00:12:20 +0100 [thread overview]
Message-ID: <87zhszeqsr.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <20181220162452.17732-2-szeder.dev@gmail.com>
On Thu, Dec 20 2018, SZEDER Gábor wrote:
> When building Git with GCC 8.2.0 (at least from Homebrew on macOS,
> DEVELOPER flags enabled) one is greeted with a screenful of compiler
> errors:
>
> compat/obstack.c: In function '_obstack_begin':
> compat/obstack.c:162:17: error: cast between incompatible function types from 'void * (*)(long int)' to 'struct _obstack_chunk * (*)(void *, long int)' [-Werror=cast-function-type]
> h->chunkfun = (struct _obstack_chunk * (*)(void *, long)) chunkfun;
> ^
> compat/obstack.c:163:16: error: cast between incompatible function types from 'void (*)(void *)' to 'void (*)(void *, struct _obstack_chunk *)' [-Werror=cast-function-type]
> h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun;
> ^
> compat/obstack.c:116:8: error: cast between incompatible function types from 'struct _obstack_chunk * (*)(void *, long int)' to 'struct _obstack_chunk * (*)(long int)' [-Werror=cast-function-type]
> : (*(struct _obstack_chunk *(*) (long)) (h)->chunkfun) ((size)))
> ^
> compat/obstack.c:168:22: note: in expansion of macro 'CALL_CHUNKFUN'
> chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
> ^~~~~~~~~~~~~
> <snip>
We originally got this from now-discontinued eglibc, but I notice that
glibc.git's malloc/obstack.[ch]'s diff also changes these lines. If you
backport those do does that fix this warning?
I.e. is this another case where we're blindly fixing bugs but should
just re-import upstream's code instead?
next prev parent reply other threads:[~2018-12-20 23:12 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 18:45 On overriding make variables from the environment SZEDER Gábor
2018-10-16 21:54 ` Jonathan Nieder
2018-10-16 22:33 ` SZEDER Gábor
2018-10-16 22:40 ` Jonathan Nieder
2018-10-17 14:29 ` SZEDER Gábor
2018-10-18 10:01 ` Johannes Schindelin
2018-10-18 12:49 ` Junio C Hamano
2018-12-20 16:24 ` [PATCH 0/5] travis-ci: build with the right compiler SZEDER Gábor
2018-12-20 16:24 ` [PATCH 1/5] compat/obstack: fix -Wcast-function-type warnings SZEDER Gábor
2018-12-20 23:12 ` Ævar Arnfjörð Bjarmason [this message]
2019-01-10 21:22 ` Junio C Hamano
2019-01-11 0:37 ` SZEDER Gábor
2019-01-11 18:03 ` Junio C Hamano
2019-01-11 18:51 ` SZEDER Gábor
2019-01-15 23:55 ` SZEDER Gábor
2019-01-16 1:13 ` Jonathan Nieder
2019-01-17 1:36 ` SZEDER Gábor
2019-01-16 4:16 ` Junio C Hamano
2018-12-20 16:24 ` [PATCH 2/5] .gitignore: ignore external debug symbols from GCC on macOS SZEDER Gábor
2018-12-20 16:24 ` [PATCH 3/5] travis-ci: don't be '--quiet' when running the tests SZEDER Gábor
2018-12-20 16:24 ` [PATCH 4/5] travis-ci: switch to Xcode 10.1 macOS image SZEDER Gábor
2018-12-20 16:24 ` [PATCH 5/5] travis-ci: build with the right compiler SZEDER Gábor
2019-01-03 16:01 ` Johannes Schindelin
2019-01-17 1:29 ` [PATCH v2 0/5] " SZEDER Gábor
2019-01-17 1:29 ` [PATCH v2 1/5] compat/obstack: fix -Wcast-function-type warnings SZEDER Gábor
2019-01-17 1:29 ` [PATCH v2 2/5] .gitignore: ignore external debug symbols from GCC on macOS SZEDER Gábor
2019-01-17 1:29 ` [PATCH v2 3/5] travis-ci: don't be '--quiet' when running the tests SZEDER Gábor
2019-01-17 13:28 ` Johannes Schindelin
2019-01-17 1:29 ` [PATCH v2 4/5] travis-ci: switch to Xcode 10.1 macOS image SZEDER Gábor
2019-01-17 1:29 ` [PATCH v2 5/5] travis-ci: build with the right compiler SZEDER Gábor
2019-01-17 13:44 ` Johannes Schindelin
2019-01-17 14:56 ` SZEDER Gábor
2019-01-18 8:40 ` Johannes Schindelin
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