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From:
Thomas Dreibholz <dreibh@simula.no>
Subject:
devel/boost: boost/iostreams zstd linker error
To:
ports@openbsd.org, Brad Smith <brad@comstyle.com>
Date:
Mon, 15 Jun 2026 12:42:48 +0200

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Thread 
 >Synopsis:    boost library does not link libzstd properly => missing 
symbols
 >Category:    devel/boost
 >Environment:
     System      : OpenBSD 7.9
     Details     : OpenBSD 7.9 (GENERIC.MP) #449: Wed May  6 13:17:25 
MDT 2026
deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP

     Architecture: OpenBSD.amd64
     Machine     : amd64
 >Description:

I am trying to build HiPerConTracer 
(https://www.nntb.no/~dreibh/hipercontracer/) under OpenBSD. This fails 
with linker error for BOOST iostreams and zstd filter. I tracked down 
the issue to the following simple test program:

#include <fcntl.h>
#include <sys/stat.h>
#include <boost/iostreams/device/file_descriptor.hpp>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/filter/bzip2.hpp>
#include <boost/iostreams/filter/gzip.hpp>
#include <boost/iostreams/filter/lzma.hpp>
#include <boost/iostreams/filter/zstd.hpp>

int main(int argc, char** argv)
{
   int handle = ::open("test.txt.zst", O_CREAT|O_TRUNC|O_WRONLY, 
S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
   if(handle < 0) {
      perror("open()");
      return 1;
   }

boost::iostreams::filtering_ostream os;
boost::iostreams::file_descriptor_sink sink(handle, 
boost::iostreams::file_descriptor_flags::close_handle);
   os.push(boost::iostreams::zstd_compressor());
   os.push(sink);

   os << "This is a test!\n";
   os.flush();
   os.strict_sync();
   return 0;
}

Build of this test program works fine under FreeBSD, NetBSD, and Ubuntu 
Linux (should work with other Linux variants as well):

clang t1.cc -o t1 -I /usr/local/include/ -I /usr/pkg/include/ -L 
/usr/local/lib -L /usr/pkg/lib -lboost_iostreams -lstdc++

However, under OpenBSD 7.9:

ld: error: undefined symbol: boost::iostreams::zstd::default_compression
 >>> referenced by t1.cc
 >>>               /tmp/t1-a0cbad.o:(main)

ld: error: undefined symbol: 
boost::iostreams::detail::zstd_base::zstd_base()
 >>> referenced by t1.cc
 >>> 
               /tmp/t1-a0cbad.o:(boost::iostreams::detail::zstd_compressor_impl<std::__1::allocator<char>>::zstd_compressor_impl(boost::iostreams::zstd_params 
const&))

ld: error: undefined symbol: 
boost::iostreams::detail::zstd_base::~zstd_base()
 >>> referenced by t1.cc
 >>> 
               /tmp/t1-a0cbad.o:(boost::iostreams::detail::zstd_compressor_impl<std::__1::allocator<char>>::zstd_compressor_impl(boost::iostreams::zstd_params 
const&))
 >>> referenced by t1.cc
 >>> 
               /tmp/t1-a0cbad.o:(boost::iostreams::detail::zstd_compressor_impl<std::__1::allocator<char>>::~zstd_compressor_impl())


FreeBSD has such a BOOST issue, probably the same, some time ago as 
well: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286403 . This 
was fixed.

 >How-To-Repeat:

Just try to compile the test program.

 >Fix:

Possibly the same as in 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286403 for FreeBSD.

SENDBUG: Run sendbug as root if this is an ACPI report!
SENDBUG: dmesg and usbdevs are attached.
SENDBUG: Feel free to delete or use the -D flag if they contain 
sensitive information.

dmesg:
OpenBSD 7.9 (GENERIC.MP) #449: Wed May  6 13:17:25 MDT 2026
deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4239011840 (4042MB)
avail mem = 4083007488 (3893MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xde9fd020 (10 entries)
bios0: vendor innotek GmbH version "VirtualBox" date 12/01/2006
bios0: innotek GmbH VirtualBox
efi0 at bios0: UEFI 2.7
efi0: EDK II rev 0x10000
acpi0 at bios0: ACPI 4.0
acpi0: sleep states S0 S5
acpi0: tables DSDT FACP APIC SSDT BGRT
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Xeon(R) W-2135 CPU @ 3.70GHz, 3696.22 MHz, 06-55-04, 
patch 02007006
cpu0: cpuid 1 
edx=178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT> 
ecx=76da3203<SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND>
cpu0: cpuid 6 eax=4<ARAT>
cpu0: cpuid 7.0 
ebx=8c2569<FSGSBASE,BMI1,AVX2,BMI2,INVPCID,RDSEED,ADX,CLFLUSHOPT> 
edx=30000400<MD_CLEAR,L1DF>
cpu0: cpuid 80000001 edx=28100800<NXE,RDTSCP,LONG> ecx=121<LAHF,ABM,3DNOWP>
cpu0: cpuid 80000007 edx=100<ITSC>
cpu0: msr 10a=4<RSBA>
cpu0: MELTDOWN
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 1MB 
64b/line 16-way L2 cache, 8MB 64b/line 11-way L3 cache
cpu0: smt 0, core 0, package 0, type P
mtrr: Pentium Pro MTRR support, 16 var ranges, 88 fixed ranges
cpu0: apic clock running at 1000MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Xeon(R) W-2135 CPU @ 3.70GHz, 3696.55 MHz, 06-55-04, 
patch 02007006
cpu1: smt 0, core 1, package 0, type P
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Xeon(R) W-2135 CPU @ 3.70GHz, 3696.43 MHz, 06-55-04, 
patch 02007006
cpu2: smt 0, core 2, package 0, type P
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Xeon(R) W-2135 CPU @ 3.70GHz, 3697.08 MHz, 06-55-04, 
patch 02007006
cpu3: smt 0, core 3, package 0, type P
ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 20, 24 pins, remapped
acpiprt0 at acpi0: bus 0 (PCI0)
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
"PNP0303" at acpi0 not configured
"PNP0F03" at acpi0 not configured
acpiac0 at acpi0: AC unit online
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
acpicpu2 at acpi0: C1(@1 halt!)
acpicpu3 at acpi0: C1(@1 halt!)
acpivideo0 at acpi0: GFX0
cpu0: using VERW MDS workaround (except on vmm entry)
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371AB IDE" rev 0x01: DMA, 
channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <VBOX HARDDISK>
wd0: 128-sector PIO, LBA, 32768MB, 67108864 sectors
atapiscsi0 at pciide0 channel 0 drive 1
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <VBOX, CD-ROM, 1.0> removable
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
cd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2
atapiscsi1 at pciide0 channel 1 drive 0
scsibus2 at atapiscsi1: 2 targets
cd1 at scsibus2 targ 0 lun 0: <VBOX, CD-ROM, 1.0> removable
cd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
"VMware SVGA II" rev 0x00 at pci0 dev 2 function 0 not configured
em0 at pci0 dev 3 function 0 "Intel 82540EM" rev 0x02: apic 4 int 19, 
address 08:00:27:c1:bc:cc
"InnoTek Guest Service" rev 0x00 at pci0 dev 4 function 0 not configured
auich0 at pci0 dev 5 function 0 "Intel 82801AA AC97" rev 0x01: apic 4 
int 21, ICH
ac97: codec id 0x83847600 (SigmaTel STAC9700)
audio0 at auich0
ohci0 at pci0 dev 6 function 0 "Apple Intrepid USB" rev 0x00: apic 4 int 
22, version 1.0
piixpm0 at pci0 dev 7 function 0 "Intel 82371AB Power" rev 0x08: apic 4 
int 23
iic0 at piixpm0
ehci0 at pci0 dev 11 function 0 "Intel 82801FB USB" rev 0x00: apic 4 int 19
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 
2.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
usb1 at ohci0: USB revision 1.0
uhub1 at usb1 configuration 1 interface 0 "Apple OHCI root hub" rev 
1.00/1.00 addr 1
efifb0 at mainbus0: 2560x1600, 32bpp
wsdisplay0 at efifb0 mux 1: console (std, vt100 emulation), using wskbd0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on wd0a (f8587cc9b53868eb.a) swap on wd0b dump on wd0b
WARNING: clock gained 2 days
WARNING: CHECK AND RESET THE DATE!

usbdevs:
Controller /dev/usb0:
addr 01: 8086:0000 Intel, EHCI root hub
      high speed, self powered, config 1, rev 1.00
      driver: uhub0
Controller /dev/usb1:
addr 01: 106b:0000 Apple, OHCI root hub
      full speed, self powered, config 1, rev 1.00
      driver: uhub1

-- 
Best regards / Mit freundlichen Grüßen / Med vennlig hilsen

=======================================================================
  Thomas Dreibholz

  Simula Metropolitan Centre for Digital Engineering
  Centre for Resilient Networks and Applications
  Stensberggata 27
  0170 Oslo, Norway
-----------------------------------------------------------------------
  E-Mail:dreibh@simula.no
  Homepage:http://simula.no/people/dreibh
=======================================================================