usbredir @0.9.0: error: ‘TCP_KEEPINTVL’ undeclared

[barracuda156]

This is a separate issue from #64940. When restricted to ppc32, usbredir still fails on Leopard and Snow Leopard Rosetta due to undeclared TCP_KEEPINTVL and TCP_KEEPCNT.

This is on 10.5.8:

Making all in usbredirserver
make[2]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0/usbredirserver'
/usr/bin/gcc-4.2 -std=gnu99 -DHAVE_CONFIG_H -I. -I..   -I/opt/local/include -I/opt/local/include/libusb-1.0 -I../usbredirhost -I../usbredirparser -pipe -Os -arch ppc -Wall -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -MT usbredirserver-usbredirserver.o -MD -MP -MF .deps/usbredirserver-usbredirserver.Tpo -c -o usbredirserver-usbredirserver.o `test -f 'usbredirserver.c' || echo './'`usbredirserver.c
usbredirserver.c: In function ‘main’:
usbredirserver.c:390: error: ‘TCP_KEEPINTVL’ undeclared (first use in this function)
usbredirserver.c:390: error: (Each undeclared identifier is reported only once
usbredirserver.c:390: error: for each function it appears in.)
usbredirserver.c:397: error: ‘TCP_KEEPCNT’ undeclared (first use in this function)
make[2]: *** [usbredirserver-usbredirserver.o] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0/usbredirserver'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0'
make: *** [all] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0" && /usr/bin/make -j4 -w all 
Exit code: 2
Error: Failed to build usbredir: command execution failed

And on 10.6.8 with gcc10:

Making all in usbredirserver
make[2]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0/usbredirserver'
/opt/local/bin/gcc-mp-10 -DHAVE_CONFIG_H -I. -I..   -I/opt/local/include -I/opt/local/include/libusb-1.0 -I../usbredirhost -I../usbredirparser -pipe -Os -arch ppc -Wall -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -MT usbredirserver-usbredirserver.o -MD -MP -MF .deps/usbredirserver-usbredirserver.Tpo -c -o usbredirserver-usbredirserver.o `test -f 'usbredirserver.c' || echo './'`usbredirserver.c
usbredirserver.c: In function 'main':
usbredirserver.c:390:48: error: 'TCP_KEEPINTVL' undeclared (first use in this function); did you mean 'TCP_KEEPALIVE'?
  390 |             if (setsockopt(client_fd, SOL_TCP, TCP_KEEPINTVL, &optval, optlen) == -1) {
      |                                                ^~~~~~~~~~~~~
      |                                                TCP_KEEPALIVE
usbredirserver.c:390:48: note: each undeclared identifier is reported only once for each function it appears in
usbredirserver.c:397:48: error: 'TCP_KEEPCNT' undeclared (first use in this function); did you mean 'TCP_KEEPIDLE'?
  397 |             if (setsockopt(client_fd, SOL_TCP, TCP_KEEPCNT, &optval, optlen) == -1) {
      |                                                ^~~~~~~~~~~
      |                                                TCP_KEEPIDLE
make[2]: *** [usbredirserver-usbredirserver.o] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0/usbredirserver'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0'
make: *** [all] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_usbredir/usbredir/work/usbredir-0.9.0" && /usr/bin/make -j4 -w all 
Exit code: 2
Error: Failed to build usbredir: command execution failed

[ryandesign (Ryan Carsten Schmidt)]

Yes, this problem affects Mountain Lion and earlier. I guess TCP_KEEPINTVL and TCP_KEEPCNT aren't declared by the system headers on those OS versions. I haven't investigated whether upstream has already fixed this (we are not using the latest version yet because that would require switching to the meson build system and I didn't feel like dealing with that yet) or, if not, what the solution would be.

[barracuda156]

Replying to ryandesign:

Yes, this problem affects Mountain Lion and earlier. I guess TCP_KEEPINTVL and TCP_KEEPCNT aren't declared by the system headers on those OS versions. I haven't investigated whether upstream has already fixed this (we are not using the latest version yet because that would require switching to the meson build system and I didn't feel like dealing with that yet) or, if not, what the solution would be.

Yeah, these appear from 10.9 onwards:

#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
…
#define	TCP_KEEPINTVL		0x101	/* interval between keepalives */
#define	TCP_KEEPCNT		0x102	/* number of keepalives before close */

UPD: Well, just adding these two lines to usbredirserver.c solved the problem:

36-109% port -v installed usbredir
The following ports are currently installed:
  usbredir @0.9.0_0 (active) requested_variants='' platform='darwin 10' archs='ppc' date='2022-04-06T08:39:45+0800'

[ryandesign (Ryan Carsten Schmidt)]

While that may compile, just defining those values may not do anything useful. The program will be passing those constants to the OS, or comparing those values against something returned by the OS. If the OS didn't define those constants, likely the OS is not prepared to accept or return those values.

The error is occurring in usbredirserver.c; upstream has ​removed usbredirserver in the latest not-yet-released version. Maybe we can instruct the port not to build that component.