Enforce compiler warnings in CI build only.

.github/workflows/nginx-otel-module-check.yml

@@ -24,7 +24,8 @@ jobs:
       - name: Build module
         working-directory: build
         run: |
-          cmake -DNGX_OTEL_NGINX_BUILD_DIR=${PWD}/../nginx/objs ..
+          cmake -DNGX_OTEL_NGINX_BUILD_DIR=${PWD}/../nginx/objs \
+                -DNGX_OTEL_DEV=ON ..
           make -j 4
           strip ngx_otel_module.so
       - name: Archive module

CMakeLists.txt

@@ -8,6 +8,7 @@ set(NGX_OTEL_NGINX_DIR "${NGX_OTEL_NGINX_BUILD_DIR}/.."
 
 set(NGX_OTEL_FETCH_DEPS ON  CACHE BOOL "Download dependencies")
 set(NGX_OTEL_PROTO_DIR  ""  CACHE PATH "OTel proto files root")
+set(NGX_OTEL_DEV        OFF CACHE BOOL "Enforce compiler warnings")
 
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE RelWithDebInfo)
@@ -99,7 +100,9 @@ add_custom_command(
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
-add_compile_options(-Wall -Wtype-limits -Werror)
+if (NGX_OTEL_DEV)
+    add_compile_options(-Wall -Wtype-limits -Werror)
+endif()
 
 add_library(ngx_otel_module MODULE
     src/http_module.cpp