1 files changed, 4 insertions, 0 deletions
diff --git a/Source/cmFileCommand.h b/Source/cmFileCommand.h
index 60e25e8..5d00acf 100644
--- a/Source/cmFileCommand.h
+++ b/Source/cmFileCommand.h
@@ -81,6 +81,10 @@ public:
       "if it does not exists.\n"
       "APPEND will write a message into a file same as WRITE, except "
       "it will append it to the end of the file\n"
+      "NOTE: When using FILE WRITE and FILE APPEND, the produced file "
+      "cannot be used as an input to CMake (CONFIGURE_FILE, source file ...) "
+      "because it will lead to infinite loop. Use CONFIGURE_FILE if you "
+      "want to generate input files to CMake.\n"
       "READ will read the content of a file and store it into the "
       "variable.\n"
       "GLOB will generate a list of all files that match the globbing "