Add more coverage and use the ARGS option of try_run

Tests/TryCompile/CMakeLists.txt

@@ -142,6 +142,17 @@ IF(NOT "${TRY_OUT}" MATCHES "hello world")
   MESSAGE(SEND_ERROR " TRY_OUT didn't contain \"hello world\": \"${TRY_OUT}\"")
 ENDIF(NOT "${TRY_OUT}" MATCHES "hello world")
 
+TRY_RUN(ARG_TEST_RUN ARG_TEST_COMPILE
+    ${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp  
+    ${TryCompile_SOURCE_DIR}/expect_arg.c
+    OUTPUT_VARIABLE TRY_OUT
+    ARGS arg1 arg2)
+IF(NOT ARG_TEST_COMPILE)
+  MESSAGE(SEND_ERROR "expect_arg failed compiling: ${TRY_OUT}")
+ENDIF(NOT ARG_TEST_COMPILE)
+IF(NOT "${ARG_TEST_RUN}" STREQUAL "0")
+  MESSAGE(SEND_ERROR "expect_arg failed running with exit code ${ARG_TEST_RUN} ${TRY_OUT}")
+ENDIF(NOT "${ARG_TEST_RUN}" STREQUAL "0")
 
 # try to run a file that should compile and run, but return an error
 TRY_RUN(SHOULD_EXIT_WITH_ERROR SHOULD_COMPILE

Tests/TryCompile/expect_arg.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <string.h>
+int main(int ac, char*av[])
+{
+  int i;
+  printf("ac = [%d]\n", ac);
+  for(i =0; i < ac; i++)
+    {
+    printf("arg[%d] = %s\n", i, av[i]);
+    }
+  if(ac == 3)
+    {
+    if(strcmp(av[1], "arg1") ==0 
+       && strcmp(av[2], "arg2") ==0)
+      {
+      printf("arg1 and arg2 present and accounted for!\n");
+      return 0;
+      }
+    }
+  printf("arg1 and arg2 missing!\n");
+  return -1;
+}