Update libc crate to 0.2.57

This change updates the libc crate to version 0.2.57.

Import subrepo libc/:libc at cdc48ea36d8d2890dba38e8f779001e6855339a2

1 files changed, 3 insertions, 22 deletions

diff --git a/libc/ci/docker/i686-unknown-linux-musl/Dockerfile b/libc/ci/docker/i686-unknown-linux-musl/Dockerfile
index c085c10..ac76a32 100644
--- a/libc/ci/docker/i686-unknown-linux-musl/Dockerfile
+++ b/libc/ci/docker/i686-unknown-linux-musl/Dockerfile
@@ -4,28 +4,9 @@ RUN dpkg --add-architecture i386
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc-multilib make libc6-dev git curl ca-certificates libc6:i386
-# Below we're cross-compiling musl for i686 using the system compiler on an
-# x86_64 system. This is an awkward thing to be doing and so we have to jump
-# through a couple hoops to get musl to be happy. In particular:
-#
-# * We specifically pass -m32 in CFLAGS and override CC when running ./configure,
-#   since otherwise the script will fail to find a compiler.
-# * We manually unset CROSS_COMPILE when running make; otherwise the makefile
-#   will call the non-existent binary 'i686-ar'.
-RUN curl --retry 5 https://www.musl-libc.org/releases/musl-1.1.19.tar.gz | \
-    tar xzf - && \
-    cd musl-1.1.19 && \
-    CC=gcc CFLAGS=-m32 ./configure --prefix=/musl-i686 --disable-shared --target=i686 && \
-    make CROSS_COMPILE= install -j4 && \
-    cd .. && \
-    rm -rf musl-1.1.19
-# Install linux kernel headers sanitized for use with musl
-RUN curl --retry 5 -L https://github.com/sabotage-linux/kernel-headers/archive/v3.12.6-6.tar.gz | \
-    tar xzf - && \
-    cd kernel-headers-3.12.6-6 && \
-    make ARCH=i386 prefix=/musl-i686 install -j4 && \
-    cd .. && \
-    rm -rf kernel-headers-3.12.6-6
+
+COPY install-musl.sh /
+RUN sh /install-musl.sh i686
 
 ENV PATH=$PATH:/musl-i686/bin:/rust/bin \
     CC_i686_unknown_linux_musl=musl-gcc