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CONFIGURE: Some OpenBSD tweaks + let the endianness check build if there's no __attribute__ #3925

merged 3 commits into from Jun 12, 2022


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@dwatteau dwatteau commented May 30, 2022

The commits are unrelated but they're small changes to the same file.


Contrary to FreeBSD, OpenBSD completely removed its /dev/sequencer support back in 2013, since sndio is its replacement (for which we already have a MIDI backend):

So the first commit moves OpenBSD to its own section and always disables SEQ MIDI there, as was recently done for macOS in commit 1aabe90.

The other OpenBSD commit just disables -pedantic there, because some system headers make the build noisy, otherwise. (It builds fine with -std=c++11, though.)

(Basically, this is a backport of what the official OpenBSD port has been doing for some years; I'm trying to reduce the number of patches which are applied in the ports tree.)


The other commit is related to the endianness test in configure: it has some __attribute((used)) lines coming from Fedora since they use LTO by default (well, the check itself could maybe be rewritten so that it will never trigger any dead-code elimination, and remove EBCDIC support ;) but __attribute__ is used unconditionally so it could fail compiling with some non-GCC-compatible compilers. In practice, configure implicitly targets GCC-compatible compilers I believe, but…

OpenBSD removed its /dev/sequencer support in 2013, and uses the sndio
API instead.
configure Outdated Show resolved Hide resolved
dwatteau added 2 commits May 30, 2022
…_ support

__attribute__((used)) here comes from Fedora which uses LTO by default
but this is a GCC-ism, so let this code compile if the compiler is not
OpenBSD is fine with std_variant=c++ with C++11, but -pedantic is still
noisy for some system header files.
@dwatteau dwatteau force-pushed the fix/configure-openbsd-no-seq-midi branch from a168ced to 7780a1b Compare May 30, 2022
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@sev- sev- commented Jun 12, 2022

Thank you!

@sev- sev- merged commit a7922fc into scummvm:master Jun 12, 2022
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@dwatteau dwatteau deleted the fix/configure-openbsd-no-seq-midi branch Jun 14, 2022
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