When I compile perl (on FreeBSD-12) in my customary manner (threaded) using either clang10 or clang12 as the C-compiler, the following warning is generated:
clang10 -c -DPERL_CORE -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -std=c99 -O2 -Wall -Werror=pointer-arith -Werror=vla -Wextra -Wno-long-long -Wno-declaration-after-statement -Wc++-compat -Wwrite-strings locale.c
locale.c:1232:1: warning: unused function 'S_setlocale_failure_panic_i' [-Wunused-function]
S_setlocale_failure_panic_i(pTHX_
^
1 warning generated.
The relevant part of the source code:
1231 STATIC void
1232 S_setlocale_failure_panic_i(pTHX_
1233 const unsigned int cat_index,
1234 const char * current,
1235 const char * failed,
1236 const line_t caller_0_line,
1237 const line_t caller_1_line)
1238 {
...
1261 }
The above was added to the source code in this commit:
commit 94202fb81e1987cdd3326f647d94de8af15c63ad
Author: Karl Williamson <khw@cpan.org>
AuthorDate: Thu Feb 11 06:16:53 2021 -0700
Commit: Karl Williamson <khw@cpan.org>
CommitDate: Sun Jun 19 13:29:35 2022 -0600
locale.c: Add panic check/message
This panic is done when a setlocale unexpectedly fails.
@khwilliamson, can you take a look?
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