diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 5fab1030..f71a4720 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -10,7 +10,7 @@ jobs:
   build_linux_autotools_default_args:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y texlive texinfo texi2html doxygen
     - name: create configure
@@ -27,7 +27,7 @@ jobs:
   build_linux_autotools_other_args:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y texlive texinfo texi2html doxygen
     - name: create configure
@@ -44,7 +44,7 @@ jobs:
   build_linux_autotools_gcc:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: create configure 
       run: autoreconf -i
     - name: configure gcc
@@ -57,7 +57,7 @@ jobs:
   build_linux_autotools_clang:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: create configure
       run: autoreconf -i
     - name: configure clang
@@ -68,7 +68,7 @@ jobs:
   build_linux_autotools_crosscompile_mingw32:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y gcc-mingw-w64
     - name: create configure
@@ -82,7 +82,7 @@ jobs:
   build_linux_autotools_prereleasecheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y texlive texinfo texi2html doxygen
     - name: create configure
@@ -95,7 +95,7 @@ jobs:
   build_linux_autotools_docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y texlive texinfo texi2html doxygen
     - name: create configure
@@ -110,7 +110,7 @@ jobs:
   build_linux_autotools_example:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install doc packages
       run: sudo apt-get install -y texlive texinfo texi2html doxygen
     - name: create configure
@@ -137,7 +137,7 @@ jobs:
   build_linux_cmake:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: cmake cversion
       run: cmake --version
     - name: create configs
@@ -152,7 +152,7 @@ jobs:
   build_linux_scanbuild:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: Install scan-build packages
       run: sudo apt-get install -y clang-tools
     - name: create configure
@@ -172,7 +172,7 @@ jobs:
   build_linux_cmake_project_usage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v7
       - name: run test
         run: |
           cmake --version || exit 1
diff --git a/.github/workflows/osx.yml b/.github/workflows/osx.yml
index 5fbc801a..a1100097 100644
--- a/.github/workflows/osx.yml
+++ b/.github/workflows/osx.yml
@@ -10,16 +10,16 @@ jobs:
   build_osx_autotools_default_args:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     # Brew may not have permission to install its packages
     - name: change brew install folder permissions
       run: sudo chmod -R a+rwx /usr/local/share/ || mkdir -p /usr/local/share/ -m a+rwx
-    - name: install maxtex
-      run: brew install --cask mactex
     - name: install doc programs
-      run: brew install texi2html doxygen
+      run: brew install texlive texi2html doxygen texinfo
     - name: install automake
       run: brew install automake
+    - name: install libtool
+      run: brew install libtool
     - name: install pkg-config
       run: brew install pkgconfig
     - name: create configure
@@ -36,16 +36,16 @@ jobs:
   build_osx_autotools_other_args:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     # Brew may not have permission to install its packages
     - name: change brew install folder permissions
       run: sudo chmod -R a+rwx /usr/local/share/ || mkdir -p /usr/local/share/ -m a+rwx
-    - name: install maxtex
-      run: brew install --cask mactex
     - name: install doc programs
-      run: brew install texi2html doxygen
+      run: brew install texlive texi2html doxygen texinfo
     - name: install automake
       run: brew install automake
+    - name: install libtool
+      run: brew install libtool
     - name: install pkg-config
       run: brew install pkgconfig
     - name: create configure
@@ -62,12 +62,14 @@ jobs:
   build_osx_autotools_gcc:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     # Brew may not have permission to install its packages
     - name: change brew install folder permissions
       run: sudo chmod -R a+rwx /usr/local/share/ || mkdir -p /usr/local/share/ -m a+rwx
     - name: install automake
       run: brew install automake
+    - name: install libtool
+      run: brew install libtool
     - name: install pkg-config
       run: brew install pkgconfig
     - name: create configure 
@@ -82,12 +84,14 @@ jobs:
   build_osx_autotools_clang:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     # Brew may not have permission to install its packages
     - name: change brew install folder permissions
       run: sudo chmod -R a+rwx /usr/local/share/ || mkdir -p /usr/local/share/ -m a+rwx
     - name: install automake
       run: brew install automake
+    - name: install libtool
+      run: brew install libtool
     - name: install pkg-config
       run: brew install pkgconfig
     - name: create configure
@@ -102,16 +106,16 @@ jobs:
   build_osx_autotools_example:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     # Brew may not have permission to install its packages
     - name: change brew install folder permissions
       run: sudo chmod -R a+rwx /usr/local/share/ || mkdir -p /usr/local/share/ -m a+rwx
-    - name: install maxtex
-      run: brew install --cask mactex
     - name: install doc programs
-      run: brew install texi2html doxygen
+      run: brew install texlive texi2html doxygen texinfo
     - name: install automake
       run: brew install automake
+    - name: install libtool
+      run: brew install libtool
     - name: install pkg-config
       run: brew install pkgconfig
     - name: create configure
@@ -138,7 +142,7 @@ jobs:
   build_osx_cmake:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
     - name: cmake cversion
       run: cmake --version
     - name: create configs
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ff4336b9..be54b579 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -182,6 +182,7 @@ check_function_exists(mkstemp HAVE_MKSTEMP)
 check_function_exists(realloc HAVE_REALLOC)
 check_function_exists(setenv HAVE_DECL_SETENV)
 check_function_exists(sigaction HAVE_SIGACTION)
+check_function_exists(setitimer HAVE_SETITIMER)
 check_function_exists(strdup HAVE_DECL_STRDUP)
 check_function_exists(strsignal HAVE_DECL_STRSIGNAL)
 check_function_exists(_getpid HAVE__GETPID)
diff --git a/cmake/config.h.in b/cmake/config.h.in
index cea2f3b3..9ef7b560 100644
--- a/cmake/config.h.in
+++ b/cmake/config.h.in
@@ -270,6 +270,9 @@ typedef uint64_t uintmax_t;
 /* Define to 1 if you have the 'sigaction' function. */
 #cmakedefine HAVE_SIGACTION 1
 
+/* Define to 1 if you have the 'setitimer' function. */
+#cmakedefine HAVE_SETITIMER 1
+
 /* Define to 1 if you have the <stdarg.h> header file. */
 #cmakedefine HAVE_STDARG_H 1
 
diff --git a/lib/timer_delete.c b/lib/timer_delete.c
index 4b0af79f..5ac4fd52 100644
--- a/lib/timer_delete.c
+++ b/lib/timer_delete.c
@@ -57,5 +57,6 @@ int timer_delete(timer_t timerid CK_ATTRIBUTE_UNUSED)
    * There is no support for alternative timers, so there is nothing
    * to delete or reset.
   */
+  return 0;
 #endif
 }
diff --git a/lib/timer_settime.c b/lib/timer_settime.c
index 4e194df1..e03012e2 100644
--- a/lib/timer_settime.c
+++ b/lib/timer_settime.c
@@ -61,5 +61,6 @@ int timer_settime(timer_t timerid CK_ATTRIBUTE_UNUSED,
   /*
    * There is no support for timers on the platform.
    */
+  return 0;
 #endif
 }