diff --git a/libarchive/.signature b/libarchive/.signature
index 1417d215..1271ab52 100644
--- a/libarchive/.signature
+++ b/libarchive/.signature
@@ -1,5 +1,6 @@
 untrusted comment: verify with /etc/ports/core.pub
-RWRJc1FUaeVeqpUoqDHBO4S9qLSIogDEX0QYwCUcGmUNLX9aEJ9THPiLvttAaWPSl/2GMek3+QucC90TUf6wf8djD80T6+M/EAE=
-SHA256 (Pkgfile) = 4cdd1cf60e4a9503f3a90145a876fce26226a5bbcf96fe7eff3f141c1d7f3fd3
+RWRJc1FUaeVeqrG9uutGWP6Pevs2GjvVrFAjzplIdI/O/FdPmyN3FZd283Iu1MPyKwpOZOaWUVK3Yc46mpWNKibQHFJ8kcIPzQ0=
+SHA256 (Pkgfile) = f0a9ed1e345c630ae26637a350cbdf0df292d3db29dce6c4cb595fcc1b0e09af
 SHA256 (.footprint) = d29a69eb36c351c70aecd8daa017736c3849dad5a2445fe682a50540a787c042
 SHA256 (libarchive-3.7.2.tar.xz) = 04357661e6717b6941682cde02ad741ae4819c67a260593dfb2431861b251acb
+SHA256 (lzma_stream.patch) = 0ef35ac67530d5ae3e4e39d968c4ba72a7a9806e4d98aa16aa8b608c76eb32c8
diff --git a/libarchive/Pkgfile b/libarchive/Pkgfile
index f1b40a75..f89f6f3e 100644
--- a/libarchive/Pkgfile
+++ b/libarchive/Pkgfile
@@ -5,20 +5,27 @@
 
 name=libarchive
 version=3.7.2
-release=1
-source=(https://github.com/libarchive/libarchive/releases/download/v$version/$name-$version.tar.xz)
+release=2
+source=(https://github.com/libarchive/libarchive/releases/download/v$version/$name-$version.tar.xz
+	lzma_stream.patch)
 
 build() {
+	patch -Np1 -d $name-$version -i $SRC/lzma_stream.patch
+
 	cmake -S $name-$version -B build -G Ninja \
 		-D CMAKE_INSTALL_PREFIX=/usr \
 		-D CMAKE_BUILD_TYPE=Release \
-		-D CMAKE_C_FLAGS_RELEASE="$CFLAGS -DHAVE_LZMA_STREAM_ENCODER_MT=1" \
+		-D CMAKE_C_FLAGS_RELEASE="$CFLAGS" \
 		-D ENABLE_TAR_SHARED=ON \
+		-D ENABLE_ICONV=OFF \
 		-D ENABLE_LIBB2=OFF \
 		-D ENABLE_LIBXML2=OFF \
 		-D ENABLE_NETTLE=OFF \
+		-D ENABLE_TEST=OFF \
+		-D BUILD_TESTING=OFF \
 		-Wno-dev
 	cmake --build build -j ${JOBS:-1}
 	DESTDIR=$PKG cmake --install build
+
 	ln -s $name.so.20 $PKG/usr/lib/$name.so.19
 }
diff --git a/libarchive/lzma_stream.patch b/libarchive/lzma_stream.patch
new file mode 100644
index 00000000..53a48ca4
--- /dev/null
+++ b/libarchive/lzma_stream.patch
@@ -0,0 +1,39 @@
+From 2ba3d92706384be14cd376734f3f7ebe5648591e Mon Sep 17 00:00:00 2001
+From: alice <alice@ayaya.dev>
+Date: Sat, 23 Sep 2023 01:57:55 +0200
+Subject: [PATCH] fix detection of lzma_stream_encoder_mt with Werror (#1965)
+
+the function is marked as warn-unused-result, so by default in a Debug
+build with cmake, when Werror is set, this fails to detect. do the same
+for autotools.
+---
+ CMakeLists.txt | 2 +-
+ configure.ac   | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index dc1fcc72a..6211fd8ac 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -523,7 +523,7 @@ IF(LIBLZMA_FOUND)
+     "#include <lzma.h>\nint main() {return (int)lzma_version_number(); }"
+     "WITHOUT_LZMA_API_STATIC;LZMA_API_STATIC")
+   CHECK_C_SOURCE_COMPILES(
+-    "#include <lzma.h>\n#if LZMA_VERSION < 50020000\n#error unsupported\n#endif\nint main(void){lzma_stream_encoder_mt(0, 0); return 0;}"
++    "#include <lzma.h>\n#if LZMA_VERSION < 50020000\n#error unsupported\n#endif\nint main(void){int ignored __attribute__((unused)); ignored = lzma_stream_encoder_mt(0, 0); return 0;}"
+     HAVE_LZMA_STREAM_ENCODER_MT)
+   IF(NOT WITHOUT_LZMA_API_STATIC AND LZMA_API_STATIC)
+     ADD_DEFINITIONS(-DLZMA_API_STATIC)
+diff --git a/configure.ac b/configure.ac
+index 67235c5d9..79a13b53d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -482,7 +482,7 @@ if test "x$with_lzma" != "xno"; then
+                        [#if LZMA_VERSION < 50020000]
+                        [#error unsupported]
+                        [#endif]],
+-                      [[lzma_stream_encoder_mt(0, 0);]])],
++                      [[int ignored __attribute__((unused)); ignored = lzma_stream_encoder_mt(0, 0);]])],
+       [ac_cv_lzma_has_mt=yes], [ac_cv_lzma_has_mt=no])])
+   if test "x$ac_cv_lzma_has_mt" != xno; then
+ 	  AC_DEFINE([HAVE_LZMA_STREAM_ENCODER_MT], [1], [Define to 1 if you have the `lzma_stream_encoder_mt' function.])