diff --git a/.ci/unix-build.sh b/.ci/unix-build.sh
new file mode 100755
index 0000000..914befa
--- /dev/null
+++ b/.ci/unix-build.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+mkdir build && cd build
+cmake -DCMAKE_BUILD_TYPE=Release ..
+cmake --build .
diff --git a/.ci/unix-test.sh b/.ci/unix-test.sh
new file mode 100755
index 0000000..3d6c865
--- /dev/null
+++ b/.ci/unix-test.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+cd build
+ctest -E Windows
+if [ -f "test/std_filesystem_test" ]; then
+  test/std_filesystem_test || true
+fi
diff --git a/.cirrus.yml b/.cirrus.yml
new file mode 100644
index 0000000..6e4cd62
--- /dev/null
+++ b/.cirrus.yml
@@ -0,0 +1,13 @@
+freebsd_instance:
+  image_family: freebsd-12-1
+
+task:
+  install_script: |
+    pkg install -y cmake
+    pw groupadd testgrp
+    pw useradd testuser -g testgrp -w none -m
+    chown -R testuser:testgrp .
+  build_script: |
+    sudo -u testuser .ci/unix-build.sh
+  test_script: |
+    sudo -u testuser .ci/unix-test.sh
diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..da967a4
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,43 @@
+kind: pipeline
+name: arm
+
+platform:
+  os: linux
+  arch: arm
+
+steps:
+- name: build
+  image: alpine
+  failure: ignore
+  commands:
+  - apk update
+  - apk add --no-cache build-base cmake sudo
+  - addgroup testgrp
+  - adduser --disabled-password testuser testgrp
+  - passwd testuser -u -d
+  - chown -R testuser:testgrp .
+  - sudo -u testuser .ci/unix-build.sh
+  - sudo -u testuser .ci/unix-test.sh
+
+---
+
+kind: pipeline
+name: arm64
+
+platform:
+  os: linux
+  arch: arm64
+
+steps:
+- name: build
+  image: alpine
+  failure: ignore
+  commands:
+  - apk update
+  - apk add --no-cache build-base cmake
+  - addgroup testgrp
+  - adduser --disabled-password testuser testgrp
+  - passwd testuser -u -d
+  - chown -R testuser:testgrp .
+  - su -c "./.ci/unix-build.sh" testuser
+  - su -c "./.ci/unix-test.sh" testuser
diff --git a/include/ghc/filesystem.hpp b/include/ghc/filesystem.hpp
index a8cfb30..244647a 100644
--- a/include/ghc/filesystem.hpp
+++ b/include/ghc/filesystem.hpp
@@ -2951,7 +2951,8 @@ template <class charT, class traits>
 inline std::basic_istream<charT, traits>& operator>>(std::basic_istream<charT, traits>& is, path& p)
 {
     std::basic_string<charT, traits> tmp;
-    auto c = is.get();
+    charT c;
+    is >> c;
     if (c == '"') {
         auto sf = is.flags();
         is >> std::noskipws;
@@ -3961,8 +3962,8 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
     struct ::timespec times[2];
     times[0].tv_sec = 0;
     times[0].tv_nsec = UTIME_OMIT;
-    times[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count();
-    times[1].tv_nsec = std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000;
+    times[1].tv_sec = static_cast<decltype(times[1].tv_sec)>(std::chrono::duration_cast<std::chrono::seconds>(d).count());
+    times[1].tv_nsec = static_cast<decltype(times[1].tv_nsec)>(std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000);
     if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) {
         ec = detail::make_system_error();
     }