upgrade cmake minimum version to 3.16

dbarker · dbarker · commit c80255da06db · 2025-08-21T16:42:51.000-06:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-24.04
     env:
       CXX_STANDARD: '17'
-      CMAKE_VERSION: '3.14.0'
+      CMAKE_VERSION: '3.16.0'
       BUILD_TYPE: 'Debug'
     steps:
     - name: Harden the runner (Audit all outbound calls)
diff --git a/.github/workflows/cmake_install.yml b/.github/workflows/cmake_install.yml
@@ -153,7 +153,7 @@ jobs:
     env:
       INSTALL_TEST_DIR: '/home/runner/install_test'
       # Set to the current minimum version of cmake
-      CMAKE_VERSION: '3.14.0'
+      CMAKE_VERSION: '3.16.0'
       # cxx14 is the default for Ubuntu 22.04
       CXX_STANDARD: '14'
       BUILD_TYPE: 'Debug'
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 # See https://cmake.org/cmake/help/latest/policy/CMP0074.html required by
 # certain version of zlib which CURL depends on.
diff --git a/install/cmake/CMakeLists.txt b/install/cmake/CMakeLists.txt
@@ -22,7 +22,7 @@
 # CMAKE_CXX_STANDARD: The C++ standard to use for all third-party packages.
 # Defaults to 14 if not set.
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-thirdparty-install LANGUAGES CXX)
 
 # Added in CMake 3.16. ExternalProject_Add() with GIT_SUBMODULES "" initializes
diff --git a/install/test/cmake/CMakeLists.txt b/install/test/cmake/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-component-install-tests LANGUAGES CXX)
 
 if(NOT INSTALL_TEST_CMAKE_OPTIONS)
diff --git a/install/test/cmake/component_tests/api/CMakeLists.txt b/install/test/cmake/component_tests/api/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-api-install-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/component_tests/exporters_elasticsearch/CMakeLists.txt b/install/test/cmake/component_tests/exporters_elasticsearch/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-elasticsearch-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_elasticsearch)
diff --git a/install/test/cmake/component_tests/exporters_etw/CMakeLists.txt b/install/test/cmake/component_tests/exporters_etw/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters_etw-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_etw)
diff --git a/install/test/cmake/component_tests/exporters_in_memory/CMakeLists.txt b/install/test/cmake/component_tests/exporters_in_memory/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-in-memory-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_in_memory)
diff --git a/install/test/cmake/component_tests/exporters_ostream/CMakeLists.txt b/install/test/cmake/component_tests/exporters_ostream/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-ostream-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_ostream)
diff --git a/install/test/cmake/component_tests/exporters_otlp_common/CMakeLists.txt b/install/test/cmake/component_tests/exporters_otlp_common/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-otlp-common-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_otlp_common)
diff --git a/install/test/cmake/component_tests/exporters_otlp_file/CMakeLists.txt b/install/test/cmake/component_tests/exporters_otlp_file/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-otlp-file-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_otlp_file)
diff --git a/install/test/cmake/component_tests/exporters_otlp_grpc/CMakeLists.txt b/install/test/cmake/component_tests/exporters_otlp_grpc/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-otlp-grpc-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_otlp_grpc)
diff --git a/install/test/cmake/component_tests/exporters_otlp_http/CMakeLists.txt b/install/test/cmake/component_tests/exporters_otlp_http/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-otlp-http-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_otlp_http)
diff --git a/install/test/cmake/component_tests/exporters_prometheus/CMakeLists.txt b/install/test/cmake/component_tests/exporters_prometheus/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-prometheus-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_prometheus)
diff --git a/install/test/cmake/component_tests/exporters_zipkin/CMakeLists.txt b/install/test/cmake/component_tests/exporters_zipkin/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-exporters-zipkin-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS exporters_zipkin)
diff --git a/install/test/cmake/component_tests/ext_common/CMakeLists.txt b/install/test/cmake/component_tests/ext_common/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-ext_common-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS ext_common)
diff --git a/install/test/cmake/component_tests/ext_dll/CMakeLists.txt b/install/test/cmake/component_tests/ext_dll/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-ext_dll-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS ext_dll exporters_ostream)
diff --git a/install/test/cmake/component_tests/ext_http_curl/CMakeLists.txt b/install/test/cmake/component_tests/ext_http_curl/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-ext_http_curl-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS ext_http_curl)
diff --git a/install/test/cmake/component_tests/sdk/CMakeLists.txt b/install/test/cmake/component_tests/sdk/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-sdk-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS sdk)
diff --git a/install/test/cmake/component_tests/shims_opentracing/CMakeLists.txt b/install/test/cmake/component_tests/shims_opentracing/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 project(opentelemetry-cpp-shims_opentracing-install-test LANGUAGES CXX)
 
 find_package(opentelemetry-cpp REQUIRED COMPONENTS shims_opentracing)
diff --git a/install/test/cmake/examples_test/CMakeLists.txt b/install/test/cmake/examples_test/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-examples-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/fetch_content_test/CMakeLists.txt b/install/test/cmake/fetch_content_test/CMakeLists.txt
@@ -4,7 +4,7 @@
 # This test uses CMake's FetchContent module to build opentelemetry-cpp from src
 # and make its targets available within an external project.
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-fetch-content-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/package_test/CMakeLists.txt b/install/test/cmake/package_test/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-full-package-install-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/usage_tests/missing_components/CMakeLists.txt b/install/test/cmake/usage_tests/missing_components/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-unsorted-components-install-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/usage_tests/no_components/CMakeLists.txt b/install/test/cmake/usage_tests/no_components/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-unsorted-components-install-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/usage_tests/unsorted_components/CMakeLists.txt b/install/test/cmake/usage_tests/unsorted_components/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-unsorted-components-install-test LANGUAGES CXX)
 
diff --git a/install/test/cmake/usage_tests/unsupported_components/CMakeLists.txt b/install/test/cmake/usage_tests/unsupported_components/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.16)
 
 project(opentelemetry-cpp-unsupported-components-install-test LANGUAGES CXX)
 
