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51 lines
1.4 KiB
Diff
51 lines
1.4 KiB
Diff
https://bugs.gentoo.org/881841
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https://github.com/garrigue/labltk/pull/17
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From e1e850972c4190686a040574b91d61948cc559b5 Mon Sep 17 00:00:00 2001
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From: Sam James <sam@gentoo.org>
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Date: Sat, 19 Nov 2022 01:14:25 +0000
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Subject: [PATCH] config: Fix -Wimplicit-int, -Wstrict-prototypes (Clang 16)
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Followup to be8c977d320ed40cacb322658d4ceba5e583b3a6.
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Clang 16 makes -Wimplicit-int error by default.
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Unfortunately, this can lead to misconfiguration or miscompilation of software as configure
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tests may then return the wrong result.
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We also fix -Wstrict-prototypes while here as it's easy to do and it prepares
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us for C23.
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For more information, see LWN.net [0] or LLVM's Discourse [1], the Gentoo wiki [2],
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or the (new) c-std-porting mailing list [3].
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[0] https://lwn.net/Articles/913505/
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[1] https://discourse.llvm.org/t/configure-script-breakage-with-the-new-werror-implicit-function-declaration/65213
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[2] https://wiki.gentoo.org/wiki/Modern_C_porting
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[3] hosted at lists.linux.dev.
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Signed-off-by: Sam James <sam@gentoo.org>
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--- a/config/auto-aux/hasgot
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+++ b/config/auto-aux/hasgot
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@@ -31,7 +31,7 @@ while : ; do
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done
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(for f in $*; do echo "int $f();"; done
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- echo "int main() {"
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+ echo "int main(void) {"
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for f in $*; do echo " $f();"; done
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echo "}") >> hasgot.c
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--- a/config/auto-aux/tclversion.c
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+++ b/config/auto-aux/tclversion.c
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@@ -18,7 +18,7 @@
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#include <tcl.h>
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#include <tk.h>
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-main ()
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+int main (void)
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{
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puts(TCL_VERSION);
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}
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