As shipped, the "make check" rule is the only way to build and run
tests; the extra build noise at the start of the output makes our
COMPONENT_TEST_COMPARE machinery sad.

Rather than always running the tests twice, add a build target that
builds tests without running them.

--- gnucash-5.11/CMakeLists.txt.~2~	Fri May  2 09:40:36 2025
+++ gnucash-5.11/CMakeLists.txt	Fri May  2 10:00:56 2025
@@ -693,6 +693,7 @@
 gnc_gtest_configure()
 
 # There are targets that need to build before tests will run
+add_custom_target(testbuild)
 add_custom_target(check
   COMMAND ${CMAKE_CTEST_COMMAND}
 )
--- gnucash-5.11/common/cmake_modules/GncAddTest.cmake.~2~	Fri May  2 09:40:36 2025
+++ gnucash-5.11/common/cmake_modules/GncAddTest.cmake	Fri May  2 10:02:57 2025
@@ -104,6 +104,7 @@
   target_link_libraries(${_TARGET} PRIVATE ${TEST_LIBS})
   target_include_directories(${_TARGET} PRIVATE ${TEST_INCLUDE_DIRS})
   set_tests_properties(${_TARGET} PROPERTIES ENVIRONMENT "${ENVVARS}$<$<CONFIG:Asan>:;ASAN_OPTIONS=${ASAN_TEST_OPTIONS}>")
+  add_dependencies(testbuild ${_TARGET})
   add_dependencies(check ${_TARGET})
 endfunction()