diff --git a/openmp/libomptarget/plugins/amdgpu/CMakeLists.txt b/openmp/libomptarget/plugins/amdgpu/CMakeLists.txt
--- a/openmp/libomptarget/plugins/amdgpu/CMakeLists.txt
+++ b/openmp/libomptarget/plugins/amdgpu/CMakeLists.txt
@@ -12,6 +12,12 @@
 ##===----------------------------------------------------------------------===##
 
 ################################################################################
+set(LIBOMPTARGET_BUILD_AMDGPU_PLUGIN TRUE CACHE BOOL
+  "Whether to build AMDGPU plugin")
+if (NOT LIBOMPTARGET_BUILD_AMDGPU_PLUGIN)
+  libomptarget_say("Not building AMDGPU offloading plugin: LIBOMPTARGET_BUILD_AMDGPU_PLUGIN is false")
+  return()
+endif()
 
 # as of rocm-3.7, hsa is installed with cmake packages and kmt is found via hsa
 find_package(hsa-runtime64 QUIET 1.2.0 HINTS ${CMAKE_INSTALL_PREFIX} PATHS /opt/rocm)
diff --git a/openmp/libomptarget/plugins/cuda/CMakeLists.txt b/openmp/libomptarget/plugins/cuda/CMakeLists.txt
--- a/openmp/libomptarget/plugins/cuda/CMakeLists.txt
+++ b/openmp/libomptarget/plugins/cuda/CMakeLists.txt
@@ -9,6 +9,13 @@
 # Build a plugin for a CUDA machine if available.
 #
 ##===----------------------------------------------------------------------===##
+set(LIBOMPTARGET_BUILD_CUDA_PLUGIN TRUE CACHE BOOL
+  "Whether to build CUDA plugin")
+if (NOT LIBOMPTARGET_BUILD_CUDA_PLUGIN)
+  libomptarget_say("Not building CUDA offloading plugin: LIBOMPTARGET_BUILD_CUDA_PLUGIN is false")
+  return()
+endif()
+
 if (NOT(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(ppc64le)|(aarch64)$" AND CMAKE_SYSTEM_NAME MATCHES "Linux"))
   libomptarget_say("Not building CUDA offloading plugin: only support CUDA in Linux x86_64, ppc64le, or aarch64 hosts.")
   return()