Merge pull request #3932 from martin-frbg/issue3931

Handle unrecognized ASM compiler (from Arm Compiler 22.1) in CMAKE builds

Author: martin-frbg

cmake/prebuild.cmake

@@ -1322,13 +1322,22 @@ else(NOT CMAKE_CROSSCOMPILING)
   file(MAKE_DIRECTORY ${GETARCH_DIR})
   configure_file(${TARGET_CONF_TEMP} ${GETARCH_DIR}/${TARGET_CONF} COPYONLY)
   if (NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "WindowsStore")
-    try_compile(GETARCH_RESULT ${GETARCH_DIR}
-      SOURCES ${GETARCH_SRC}
-    COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} -I"${GETARCH_DIR}" -I"${PROJECT_SOURCE_DIR}" -I"${PROJECT_BINARY_DIR}"
-      OUTPUT_VARIABLE GETARCH_LOG
-      COPY_FILE ${PROJECT_BINARY_DIR}/${GETARCH_BIN}
-    )
-
+    if (CMAKE_ASM_COMPILER_ID STREQUAL "")
+      try_compile(GETARCH_RESULT ${GETARCH_DIR}
+        SOURCES ${GETARCH_SRC}
+        CMAKE_FLAGS "-DCMAKE_ASM_COMPILER=${CMAKE_C_COMPILER}"
+        COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} -I"${GETARCH_DIR}" -I"${PROJECT_SOURCE_DIR}" -I"${PROJECT_BINARY_DIR}"
+        OUTPUT_VARIABLE GETARCH_LOG
+        COPY_FILE ${PROJECT_BINARY_DIR}/${GETARCH_BIN}
+      )
+    else()
+      try_compile(GETARCH_RESULT ${GETARCH_DIR}
+        SOURCES ${GETARCH_SRC}
+        COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} -I"${GETARCH_DIR}" -I"${PROJECT_SOURCE_DIR}" -I"${PROJECT_BINARY_DIR}"
+        OUTPUT_VARIABLE GETARCH_LOG
+        COPY_FILE ${PROJECT_BINARY_DIR}/${GETARCH_BIN}
+      )
+    endif()
     if (NOT ${GETARCH_RESULT})
       MESSAGE(FATAL_ERROR "Compiling getarch failed ${GETARCH_LOG}")
     endif ()