Compiled Libraries

[MichaelPNolan]

This was an issue but I closed it - I have one installation of Arduino IDE where this is happening. I've already had to strip back in the past but i can find precious little explanation of this issue:

`Library ML_SynthTools has been declared precompiled:
Using precompiled library in /home/owner/Arduino/libraries/ML_SynthTools/src/esp32
The plaform does not support 'compiler.libraries.ldflags' for precompiled libraries.
sketch/ml_synth_organ_example.ino.cpp.o:(.literal._Z13Organ_SetCtrlhh[Organ_SetCtrl(unsigned char, unsigned char)]+0x0): undefined reference to `Organ_SetLeslCtrl(unsigned char)'
sketch/ml_synth_organ_example.ino.cpp.o:(.literal._Z17Organ_PercSetMidihh[Organ_PercSetMidi(unsigned char, unsigned char)]+0x0): undefined reference to `Organ_PercussionSet(unsigned char)'
sketch/ml_synth_organ_example.ino.cpp.o:(.literal._Z19Organ_SetDrawbarInvhh[Organ_SetDrawbarInv(unsigned char, unsigned char)]+0x0): undefined reference to `Organ_SetDrawbar(unsigned char, unsigned char)'
sketch/ml_synth_organ_example.ino.cpp.o:(.literal._Z5setupv+0x54): undefined reference to `Organ_Setup(Stream*, float)'
sketch/ ...`

At first I thought I solved it by bringing all the source up to date but then came back to my main Ubuntu computer and I get this compiling issue. I saw another person on Arduino forum trying to ask for help and getting "wrong topic" forum trolled and ignored.

[marcel-licence]

I added some information in https://github.com/marcel-licence/ML_SynthTools#readme
I can imagine that it can be caused by different versions of the board library.
I found also other libraries on GitHub using the same mechanism recently.

[MichaelPNolan]

Ok - i'm trying your advice from the readme - cool. Superb to have a track, some days i'm a bit slow in the brain. Other days I work it out ... this related platforms.txt, on linux is in ~/.arduino15/packages/hardware/esp32/1.04 and there is mention of overriding in platform.local.txt - and I tried making that (after success with the initial recommended change) and putting it various locations but it didn't work like changing the platforms.txt did. So I changed this one file, first attempt, then compiled it seems successfully. Great, I can bring the project downstairs to the daytime computer. Voila ``` Library ML_SynthTools has been declared precompiled: Using precompiled library in /home/owner/Arduino/libraries/ML_SynthTools/src/esp32 Sketch uses 681174 bytes (51%) of program storage space. Maximum is 1310720 bytes. Global variables use 66560 bytes (20%) of dynamic memory, leaving 261120 bytes for local variables. Maximum is 327680 bytes. ``` Regards Michael

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On Wed, Jan 19, 2022 at 12:44 AM Marcel ***@***.***> wrote: I added some information in https://github.com/marcel-licence/ML_SynthTools#readme I can imagine that it can be caused by different versions of the board library. I found also other libraries on GitHub using the same mechanism recently. — Reply to this email directly, view it on GitHub <#6 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALTDOQYWUKBMHW7JYGECMZTUWWRGZANCNFSM5MGFDV6Q> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you authored the thread.Message ID: ***@***.*** com>

[marcel-licence]

Hi, perfect! Thanks for your feedback. I have only experience on windows. I also tried to put the platform.locals.txt into the project folder with no success. It may be related to the different board variants in the subfolders of ../esp32/1.04/...
I've read somewhere that it also was a recent new feature to allow additional linking.