try patching musl

Author: tgross35

ci/install-musl.sh

@@ -30,6 +30,16 @@ musl="musl-${musl_version}"
 # first. See https://github.com/rust-lang/ci-mirrors/blob/main/files/libc.toml.
 curl --retry 5 "https://ci-mirrors.rust-lang.org/libc/${musl}.tar.gz" | tar xzf -
 
+if [ "$musl_version" = "$old_musl" ]; then
+    patch_dir="$(realpath ci/musl-patches-1.1.x)"
+    cd "$musl"
+    for patchfile in "$patch_dir"/*; do
+        pwd
+        cat "$patchfile" | patch -p1
+    done
+    cd ..
+fi
+
 # Configure, build, and install musl:
 cd "$musl"
 case ${1} in

ci/musl-patches-1.1.x/0001-remove-non-prototype-basename.patch

@@ -0,0 +1,44 @@
+From 725e17ed6dff4d0cd22487bb64470881e86a92e7 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Mon, 6 Nov 2023 08:26:19 -0500
+Subject: [PATCH] remove non-prototype declaration of basename from string.h
+
+commit 37bb3cce4598c19288628e675eaf1cda6e96958f suppressed the
+declaration for C++, where it is wrongly interpreted as declaring the
+function as taking no arguments. with C23 removing non-prototype
+declarations, that problem is now also relevant to C.
+
+the non-prototype declaration for basename originates with commit
+06aec8d7152dfb8360cb7ed9b3d7215ca0b0b500, where it was designed to
+avoid conflicts with programs which declare basename with the GNU
+signature taking const char *. that change was probably misguided, as
+it represents not only misaligned expectations with the caller, but
+also undefined behavior (calling a function that's been declared with
+the wrong type).
+
+we could opt to fix the declaration, but since glibc, with the
+gratuitously incompatible GNU-basename function, seems to be the only
+implementation that declares it in string.h, it seems better to just
+remove the declaration. this provides some warning if applications are
+being built expecting the GNU behavior but not getting it. if we
+declared it here, it would only produce a warning if the caller also
+declares it themselves (rare) or if the caller attempts to pass a
+const-qualified pointer.
+---
+ include/string.h | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/include/string.h b/include/string.h
+index db73d2a92..83e2b9464 100644
+--- a/include/string.h
++++ b/include/string.h
+@@ -95,9 +95,6 @@ char *strchrnul(const char *, int);
+ char *strcasestr(const char *, const char *);
+ void *memrchr(const void *, int, size_t);
+ void *mempcpy(void *, const void *, size_t);
+-#ifndef __cplusplus
+-char *basename();
+-#endif
+ #endif
+
+ #ifdef __cplusplus