libusb @1.0.24_0: error: too many #pragma options align=reset

[udbraumann]

While upgrading libusb from 1.0.23_0 to 1.0.24_0 building stops with three occurrences of the error too many #pragma options align=reset inside /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h

...
:info:build libtool: compile:  /opt/local/bin/gcc-mp-7 -DHAVE_CONFIG_H -I. -I.. -I/opt/local/include -std=gnu11 -Wall -Wextra -Wshadow -Wunused -Wwrite-strings -Werror=format-security -Werror=implicit-function-declaration -Werror=implicit-int -Werror=init-self -Werror=missing-prototypes -Werror=strict-prototypes -Werror=undef -Werror=uninitialized -fvisibility=hidden -pthread -pipe -Os -arch ppc -MT os/darwin_usb.lo -MD -MP -MF os/.deps/darwin_usb.Tpo -c os/darwin_usb.c  -fno-common -DPIC -o os/.libs/darwin_usb.o
:info:build In file included from /System/Library/Frameworks/IOKit.framework/Headers/usb/IOUSBLib.h:27:0,
:info:build                  from os/darwin_usb.h:30,
:info:build                  from os/darwin_usb.c:49:
:info:build /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:594:9: error: too many #pragma options align=reset
:info:build  #pragma options align=reset
:info:build          ^~~~~~~
:info:build /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:612:9: error: too many #pragma options align=reset
:info:build  #pragma options align=reset
:info:build          ^~~~~~~
:info:build /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:632:9: error: too many #pragma options align=reset
:info:build  #pragma options align=reset
:info:build          ^~~~~~~
...

How could this get fixed?

[ryandesign (Ryan Carsten Schmidt)]

​https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50909

[evanmiller (Evan Miller)]

Try installing legacy-support-devel and libusb-devel. For a full discussion see ​https://trac.macports.org/ticket/61868

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #64544.

[barracuda156]

Since v. 1.0.23 builds on ppc with no issues, maybe we can default it for ppc systems, until pragma bug is fixed? A number of ports report themselves as incompatible with ppc arch simply due to libusb now. Once earlier version of libusb is installed, they build with no complains.

For the reference of others, I talk about this version: ​https://github.com/macports/macports-ports/tree/15d61f029417bbc8b37f31a2f4833ee6d57f0359/devel/libusb

[kencu (Ken)]

I presume you tried ​https://trac.macports.org/ticket/64408#comment:2 and it didn’t work for you?

[barracuda156]

Replying to kencu:

I presume you tried ​https://trac.macports.org/ticket/64408#comment:2 and it didn’t work for you?

I used a patch copied from elsewhere - and turned out I made a silly error while copying it. Thanks to your comment I reran compilation and reviewed what patch was doing, and realized what's wrong. I never noticed that because it applied successfully. Thank you. I did not need devel versions, it compiled now:

36-47:~ svacchanda$ port -v installed libusb
The following ports are currently installed:
  libusb @1.0.23_0+universal requested_variants='+universal' platform='darwin 9' archs='ppc ppc64' date='2022-02-13T13:28:21+0800'
  libusb @1.0.25_0 (active) requested_variants='' platform='darwin 9' archs='ppc' date='2022-02-13T17:25:45+0800'

[kencu (Ken)]

thanks.

[kencu (Ken)]

whoops, sorry, I missed that this was an older ticket there for a sec