[MacPorts] #61868: libusb @1.0.24: cannot parse USB.h with mainline gcc versions due to variant pragma handling not accepted by gcc

[MacPorts]

#61868: libusb @1.0.24: cannot parse USB.h with mainline gcc versions due to
variant pragma handling not accepted by gcc
-----------------------------------+-----------------------
  Reporter:  dgonyier              |      Owner:  michaelld
      Type:  defect                |     Status:  reopened
  Priority:  Normal                |  Milestone:
 Component:  ports                 |    Version:  2.6.4
Resolution:                        |   Keywords:
      Port:  libusb, libusb-devel  |
-----------------------------------+-----------------------

Comment (by ballapete):

 For me on PPC Leopard `configure` runs fine with `GCC7`, but later this
 happens:

 {{{
         /bin/sh ../libtool  --tag=CC   --mode=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 $depbase.Tpo -c -o os/darwin_usb.lo
 os/darwin_usb.c &&\
         mv -f $depbase.Tpo $depbase.Plo
 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
 In file included from
 /System/Library/Frameworks/IOKit.framework/Headers/usb/IOUSBLib.h:27:0,
                  from os/darwin_usb.h:30,
                  from os/darwin_usb.c:49:
 /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:594:9: error:
 too many #pragma options align=reset
  #pragma options align=reset
          ^~~~~~~
 /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:612:9: error:
 too many #pragma options align=reset
  #pragma options align=reset
          ^~~~~~~
 /System/Library/Frameworks/IOKit.framework/Headers/usb/USB.h:632:9: error:
 too many #pragma options align=reset
  #pragma options align=reset
          ^~~~~~~
 In file included from os/darwin_usb.h:26:0,
                  from os/darwin_usb.c:49:
 os/darwin_usb.c: In function 'darwin_get_cached_device':
 os/darwin_usb.c:1011:16: warning: format '%x' expects argument of type
 'unsigned int', but argument 6 has type 'UInt32 {aka long unsigned int}'
 [-Wformat=]
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
                 ^
 ./libusbi.h:287:67: note: in definition of macro '_usbi_log'
  #define _usbi_log(ctx, level, ...) usbi_log(ctx, level, __func__,
 __VA_ARGS__)
 ^~~~~~~~~~~
 os/darwin_usb.c:1011:7: note: in expansion of macro 'usbi_dbg'
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
        ^~~~~~~~
 os/darwin_usb.c:1011:64: note: format string is defined here
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
                                                                ~^
                                                                %lx
 In file included from os/darwin_usb.h:26:0,
                  from os/darwin_usb.c:49:
 os/darwin_usb.c:1011:16: warning: format '%x' expects argument of type
 'unsigned int', but argument 8 has type 'UInt32 {aka long unsigned int}'
 [-Wformat=]
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
                 ^
                 sessionID, locationID, new_device->session,
 new_device->location);
                                                             ~~~~~~~~~~~~~
 ./libusbi.h:287:67: note: in definition of macro '_usbi_log'
  #define _usbi_log(ctx, level, ...) usbi_log(ctx, level, __func__,
 __VA_ARGS__)
 ^~~~~~~~~~~
 os/darwin_usb.c:1011:7: note: in expansion of macro 'usbi_dbg'
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
        ^~~~~~~~
 os/darwin_usb.c:1011:131: note: format string is defined here
        usbi_dbg("matching sessionID/locationID 0x%" PRIx64 "/0x%x against
 cached device with sessionID/locationID 0x%" PRIx64 "/0x%x",
 ~^
 %lx
 make[2]: *** [os/darwin_usb.lo] Error 1
 make[2]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_nue.de.rsync.macports.org_macports_release_tarballs_ports_devel_libusb/libusb/work
 /libusb-libusb-c6a35c5/libusb'
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61868#comment:27>
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