build: adjust order for Kafka dependencies and AWS defs

Signed-off-by: Eduardo Silva <[email protected]>

Author: edsiper

CMakeLists.txt

@@ -754,6 +754,38 @@ if(FLB_WASM)
   endif ()
 endif()
 
+# Kafka support (library in general)
+if(FLB_KAFKA)
+  if(FLB_IN_KAFKA OR FLB_OUT_KAFKA)
+    if(FLB_PREFER_SYSTEM_LIB_KAFKA)
+      find_package(PkgConfig)
+      pkg_check_modules(KAFKA rdkafka>=2.3.0)
+    endif()
+    if(KAFKA_FOUND)
+      include_directories(${KAFKA_INCLUDE_DIRS})
+      link_directories(${KAFKA_LIBRARY_DIRS})
+    else()
+      include(cmake/kafka.cmake)
+    endif()
+  endif()
+endif()
+
+# AWS MSK IAM detection (must come after Kafka section)
+if(FLB_AWS AND FLB_KAFKA)
+  # Check if Kafka SASL support was detected
+  if(DEFINED FLB_SASL_ENABLED AND FLB_SASL_ENABLED)
+    set(FLB_HAVE_AWS_MSK_IAM ON)  # Set CMake variable
+    FLB_DEFINITION(FLB_HAVE_AWS_MSK_IAM)  # Set preprocessor definition
+    message(STATUS "AWS MSK IAM authentication: ENABLED")
+  else()
+    message(STATUS "AWS MSK IAM authentication: DISABLED (requires Kafka with libsasl2)")
+  endif()
+else()
+  if(FLB_AWS AND NOT FLB_KAFKA)
+    message(STATUS "AWS MSK IAM authentication: DISABLED (requires FLB_KAFKA=ON)")
+  endif()
+endif()
+
 # AWS
 if (FLB_AWS)
   FLB_DEFINITION(FLB_HAVE_AWS)
@@ -1137,22 +1169,6 @@ if(FLB_BACKTRACE)
   FLB_DEFINITION(FLB_HAVE_LIBBACKTRACE)
 endif()
 
-# Kafka support (library in general)
-if(FLB_KAFKA)
-  if(FLB_IN_KAFKA OR FLB_OUT_KAFKA)
-    if(FLB_PREFER_SYSTEM_LIB_KAFKA)
-      find_package(PkgConfig)
-      pkg_check_modules(KAFKA rdkafka>=2.3.0)
-    endif()
-    if(KAFKA_FOUND)
-      include_directories(${KAFKA_INCLUDE_DIRS})
-      link_directories(${KAFKA_LIBRARY_DIRS})
-    else()
-      include(cmake/kafka.cmake)
-    endif()
-  endif()
-endif()
-
 # Onigmo (Regex Engine) options
 # =====================
 if(FLB_REGEX)