postpone creation of self data dir, until compiler is checked first

releng/auto_cxx

@@ -25,22 +25,22 @@ fi
 SAMPLE_CODE_DIR=codesamples
 CC=g++
 
+# check compiler
+if ! which "${CC}" >/dev/null 2>&1; then
+    printf "\n${SELF}: Not found: ${CC}. Install ${CC}.\n"
+    cleanup
+    exit 5
+fi
+
 # check data dir
 if [ -d "${GEN_DATA_DIR}" ]; then
  printf "\n${SELF}: directory %s exists!" ${GEN_DATA_DIR}
  printf "\n${SELF}: use '${SELF} -c' to remove.\n"
- exit 5
+ exit 6
 else
  mkdir "${GEN_DATA_DIR}"
 fi
 
-# check compiler
-if ! which "${CC}" >/dev/null 2>&1; then
-    printf "\n${SELF}: Not found: ${CC}. Install ${CC}.\n"
-    cleanup
-    exit 6
-fi
-
 # process sample code tests
 # if test -f "${SAMPLE_CODE_DIR}"/*.cpp; then
  for SMPL in `ls "${SAMPLE_CODE_DIR}"/*.cpp`; do