MAKE_DLL causes gibberish output upon IDL exit

[steinhh]

I know, this is not the right place but in case you're listening (@znorman-harris or someone else), and have an easier way to report than me going through sysadmins here, then... etc... , I'd like to point out a bug in IDL itself. When using MAKE_DLL, IDL will output related gibberish upon exit:

IDL> make_dll,'fmedian','IDL_Load',input_directory="."
IDL> exit
cmd here ==> sh "/Users/steinhh/.idl/idl/compile_dir-118-idl_9_1-darwin-arm64-m64-f64/fmedian_30623_newton.sh"(py312) [eduroam-193-157-242-69:gen_idl_dlm/sources/fmedian] steinhh%

That last, non-LF-terminated string shouldn't be there.

This could potentially be a problem for programs that look for, e.g., a status message as the last output line of an IDL process. And it's darn irritating.

I've seen it happen on Mac Sequoia 15.5 (both x86_64 and ARM):

IDL> help,!version
** Structure !VERSION, 8 tags, length=104, data length=100:
   ARCH            STRING    'arm64'
   OS              STRING    'darwin'
   OS_FAMILY       STRING    'unix'
   OS_NAME         STRING    'Mac OS X'
   RELEASE         STRING    '9.1.0'
   BUILD_DATE      STRING    'Sep 19 2024 (473820)'
   MEMORY_BITS     INT             64
   FILE_OFFSET_BITS
                   INT             64

and Red Hat Linux 8.10 and 9.6

IDL> help,!version
** Structure !VERSION, 8 tags, length=104, data length=100:
   ARCH            STRING    'x86_64'
   OS              STRING    'linux'
   OS_FAMILY       STRING    'unix'
   OS_NAME         STRING    'linux'
   RELEASE         STRING    '9.1.0'
   BUILD_DATE      STRING    'Sep 19 2024 (473820)'
   MEMORY_BITS     INT             64
   FILE_OFFSET_BITS
                   INT             64

Here are the source files:

fmedian.zip

Unzip in an empty directory of your choice, start IDL there and do

MAKE_DLL,'fmedian','IDL_Load',input_dir="."
EXIT

[chris-torrence]

Yep, I see the problem - it looks like someone left in a debug printf statement. I've checked in a fix and will try to get it into IDL 9.2. Thanks for reporting it!