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Compilation Error: looking for <err.h> #48

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arnoldvillasanta opened this issue Oct 8, 2017 · 4 comments
Open

Compilation Error: looking for <err.h> #48

arnoldvillasanta opened this issue Oct 8, 2017 · 4 comments

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@arnoldvillasanta
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/Arduino/libraries/heatshrink-master/heatshrink.c:32:17:
fatal error: err.h: No such file or directory
#include <err.h>

Where can I download err.h?
@silentbicycle
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What OS are you compiling on?

@arnoldvillasanta
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MacOS

@Doom4535
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Was a solution to this ever found?

@silentbicycle
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You should already have err.h as /usr/include/err.h, but the build failure may have more to do with building in an Arduino context -- the Arduino platform is based on C++, not C, which impacts the build setup in many ways.

Are you building with the included makefile? heatshrink.c is the main source for the command line tool, which really doesn't make sense to build for an Arduino, but has built without issue on macOS. I haven't tried since Yosemite, though.

If that's not enough to get you unstuck, I need more details about how you're trying to build.

silentbicycle added a commit that referenced this issue Jul 4, 2021
@silentbicycle
Add comment about heatshrink.c builds breaking due to err.h or getopt.h.
3d89d60 
A couple people have opened issues because they can't get this file
to build for Arduinos, etc., but it isn't supposed to be. Add a comment
comment explaining why right next to those header includes to clarify.

Closes #48, #61.
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3 participants
@silentbicycle @Doom4535 @arnoldvillasanta