CMake: move symbol prefixing check to the run_tests stage.

Bug: 543471701
Change-Id: Ib36d1ee3549b8bc832b221e44694124e6a6a6964
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/100552
Presubmit-BoringSSL-Verified: boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Xiangfei Ding <xfding@google.com>
Commit-Queue: Rudolf Polzer <rpolzer@google.com>

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87e554c..31b4cc6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -845,12 +845,33 @@
           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
           DEPENDS run_unit_tests bssl_shim handshaker
           USES_TERMINAL)
+      if(BORINGSSL_PREFIX)
+        add_custom_target(
+          check_prefixed_symbols
+          COMMENT "Checking symbol prefixing"
+          COMMAND ${GO_EXECUTABLE}
+                  run ${CMAKE_CURRENT_SOURCE_DIR}/util/audit_symbols.go
+                  -ignore-symbols-with ${BORINGSSL_PREFIX}
+                  $<TARGET_FILE:crypto>
+          USES_TERMINAL
+        )
+        add_dependencies(run_tests check_prefixed_symbols)
+      else()
+        add_custom_target(
+            check_prefixed_symbols
+            COMMAND ${CMAKE_COMMAND} -E echo "Symbol prefixing not enabled"
+            COMMAND ${CMAKE_COMMAND} -E false)
+      endif()
     else()
       add_custom_target(
           run_unit_tests
           COMMAND ${CMAKE_COMMAND} -E echo "Running tests requires Go"
           COMMAND ${CMAKE_COMMAND} -E false)
       add_custom_target(
+          check_prefixed_symbols
+          COMMAND ${CMAKE_COMMAND} -E echo "Running tests requires Go"
+          COMMAND ${CMAKE_COMMAND} -E false)
+      add_custom_target(
           run_tests
           COMMAND ${CMAKE_COMMAND} -E echo "Running tests requires Go"
           COMMAND ${CMAKE_COMMAND} -E false)
@@ -858,20 +879,6 @@
   endif()
 endif()
 
-if(BORINGSSL_PREFIX)
-  require_go()
-  add_custom_target(
-    verify_boringssl_prefix ALL
-    COMMENT "Verifying symbol prefixing"
-    COMMAND ${GO_EXECUTABLE}
-            run ${CMAKE_CURRENT_SOURCE_DIR}/util/audit_symbols.go
-            -ignore-symbols-with ${BORINGSSL_PREFIX}
-            $<TARGET_FILE:crypto>
-    DEPENDS crypto
-    USES_TERMINAL
-  )
-endif()
-
 if(INSTALL_ENABLED)
   install(TARGETS crypto ssl EXPORT OpenSSLTargets)
   install(TARGETS bssl)