You are receiving this mail as a port that you maintain
is failing to build on the FreeBSD package build server.
Please investigate the failure and submit a PR to fix
build.

Maintainer:     [email protected]
Log URL:        
https://pkg-status.freebsd.org/beefy24/data/main-amd64-default/p40859a0a15a6_s16e5abf415b/logs/build2-0.18.1.log
Build URL:      
https://pkg-status.freebsd.org/beefy24/build.html?mastername=main-amd64-default&build=p40859a0a15a6_s16e5abf415b
Log:

=>> Building devel/build2
build started at Sat Jun  6 01:13:29 UTC 2026
port directory: /usr/ports/devel/build2
package name: build2-0.18.1
building for: FreeBSD main-amd64-default-job-02 16.0-CURRENT FreeBSD 
16.0-CURRENT 1600018 amd64
maintained by: [email protected]
Makefile datestamp: -rw-r--r--  1 root wheel 2305 Apr 19 01:01 
/usr/ports/devel/build2/Makefile
Ports top last git commit: 40859a0a15a65e85786f8767564230e1c9da22c1
Ports top unclean checkout: no
Port dir last git commit: 7a3a2218364ac26ec0a6e49c4fab1f31c745f7bc
Port dir unclean checkout: no
Poudriere version: poudriere-git-3.4.8
Host OSVERSION: 1600018
Jail OSVERSION: 1600018
Job Id: 02

---Begin Environment---
SHELL=/bin/sh
OSVERSION=1600018
UNAME_v=FreeBSD 16.0-CURRENT 1600018
UNAME_r=16.0-CURRENT
BLOCKSIZE=K
MAIL=/var/mail/root
MM_CHARSET=UTF-8
LANG=C.UTF-8
STATUS=1
HOME=/root
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
MAKE_OBJDIR_CHECK_WRITABLE=0
LOCALBASE=/usr/local
USER=root
POUDRIERE_NAME=poudriere-git
LIBEXECPREFIX=/usr/local/libexec/poudriere
POUDRIERE_VERSION=3.4.8
MASTERMNT=/usr/local/poudriere/data/.m/main-amd64-default/ref
LC_COLLATE=C
POUDRIERE_BUILD_TYPE=bulk
PACKAGE_BUILDING=yes
SAVED_TERM=
OUTPUT_REDIRECTED_STDERR=4
OUTPUT_REDIRECTED=1
PWD=/usr/local/poudriere/data/.m/main-amd64-default/02/.p
OUTPUT_REDIRECTED_STDOUT=3
P_PORTS_FEATURES=FLAVORS SUBPACKAGES SELECTED_OPTIONS
MASTERNAME=main-amd64-default
SCRIPTPREFIX=/usr/local/share/poudriere
SCRIPTNAME=bulk.sh
OLDPWD=/usr/local/poudriere/data/.m/main-amd64-default/ref/.p/pool
POUDRIERE_PKGNAME=poudriere-git-3.4.8
SCRIPTPATH=/usr/local/share/poudriere/bulk.sh
POUDRIEREPATH=/usr/local/bin/poudriere
---End Environment---

---Begin Poudriere Port Flags/Env---
PORT_FLAGS=
PKGENV=
FLAVOR=
MAKE_ARGS=
---End Poudriere Port Flags/Env---

---Begin OPTIONS List---
===> The following configuration options are available for build2-0.18.1:
     DOCS=on: Build and/or install documentation
===> Use 'make config' to modify these settings
---End OPTIONS List---

--MAINTAINER--
[email protected]
--End MAINTAINER--

--CONFIGURE_ARGS--

--End CONFIGURE_ARGS--

--CONFIGURE_ENV--
MAKE=/usr/local/bin/gmake PKG_CONFIG=pkgconf 
XDG_DATA_HOME=/wrkdirs/usr/ports/devel/build2/work  
XDG_CONFIG_HOME=/wrkdirs/usr/ports/devel/build2/work  
XDG_CACHE_HOME=/wrkdirs/usr/ports/devel/build2/work/.cache  
HOME=/wrkdirs/usr/ports/devel/build2/work TMPDIR="/tmp" 
PATH=/wrkdirs/usr/ports/devel/build2/work/.bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
 
PKG_CONFIG_LIBDIR=/wrkdirs/usr/ports/devel/build2/work/.pkgconfig:/usr/local/libdata/pkgconfig:/usr/local/share/pkgconfig:/usr/libdata/pkgconfig
 SHELL=/bin/sh CONFIG_SHELL=/bin/sh
--End CONFIGURE_ENV--

--MAKE_ENV--
XDG_DATA_HOME=/wrkdirs/usr/ports/devel/build2/work  
XDG_CONFIG_HOME=/wrkdirs/usr/ports/devel/build2/work  
XDG_CACHE_HOME=/wrkdirs/usr/ports/devel/build2/work/.cache  
HOME=/wrkdirs/usr/ports/devel/build2/work TMPDIR="/tmp" 
PATH=/wrkdirs/usr/ports/devel/build2/work/.bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
 
PKG_CONFIG_LIBDIR=/wrkdirs/usr/ports/devel/build2/work/.pkgconfig:/usr/local/libdata/pkgconfig:/usr/local/share/pkgconfig:/usr/libdata/pkgconfig
 MK_DEBUG_FILES=no MK_KERNEL_SYMBOLS=no SHELL=/bin/sh NO_LINT=YES 
PREFIX=/usr/local  LOCALBASE=/usr/local  CC="cc" CFLAGS="-O2 -pipe  
-fstack-protector-strong -fno-strict-aliasing "  CPP="cpp" CPPFLAGS=""  
LDFLAGS=" " LIBS=""  CXX="c++" CXXFLAGS="-Wno-unqualified-std-cast-call " 
BSD_INSTALL_PROGRAM="install  -s -m 555"  BSD_INSTALL_LIB="install  -s -m 0644" 
 BSD_INSTALL_SCRIPT="install  -m 555"  BSD_INSTALL_DATA="install  -m 0644"  
BSD_INSTALL_MAN="install  -m 444"
--End MAKE_ENV--

--PLIST_SUB--
SOVERSION=0.18 PORTDOCS="" OSREL=16.0 PREFIX=%D LOCALBASE=/usr/local  
RESETPREFIX=/usr/local LIB32DIR=lib DOCSDIR="share/doc/build2"  
EXAMPLESDIR="share/examples/build2"  DATADIR="share/build2"  
WWWDIR="www/build2"  ETCDIR="etc/build2"
--End PLIST_SUB--

--SUB_LIST--
 PREFIX=/usr/local LOCALBASE=/usr/local  DATADIR=/usr/local/share/build2 
DOCSDIR=/usr/local/share/doc/build2 
EXAMPLESDIR=/usr/local/share/examples/build2  WWWDIR=/usr/local/www/build2 
ETCDIR=/usr/local/etc/build2
--End SUB_LIST--

---Begin make.conf---
USE_PACKAGE_DEPENDS=yes
BATCH=yes
WRKDIRPREFIX=/wrkdirs
PORTSDIR=/usr/ports
PACKAGES=/packages
DISTDIR=/distfiles
PACKAGE_BUILDING=yes
PACKAGE_BUILDING_FLAVORS=yes
####  ####
# XXX: We really need this but cannot use it while 'make checksum' does not
# try the next mirror on checksum failure.  It currently retries the same
# failed mirror and then fails rather then trying another.  It *does*
# try the next if the size is mismatched though.
#MASTER_SITE_FREEBSD=yes
# Build ALLOW_MAKE_JOBS_PACKAGES with 3 jobs
MAKE_JOBS_NUMBER=3
#### Misc Poudriere ####
.include "/etc/make.conf.ports_env"
GID=0
UID=0
---End make.conf---
--Resource limits--
cpu time               (seconds, -t)  unlimited
file size           (512-blocks, -f)  unlimited
data seg size           (kbytes, -d)  33554432
stack size              (kbytes, -s)  524288
core file size      (512-blocks, -c)  unlimited
max memory size         (kbytes, -m)  unlimited
locked memory           (kbytes, -l)  unlimited
max user processes              (-u)  89999
open files                      (-n)  8192
virtual mem size        (kbytes, -v)  unlimited
swap limit              (kbytes, -w)  unlimited
socket buffer size       (bytes, -b)  unlimited
pseudo-terminals                (-p)  unlimited
kqueues                         (-k)  unlimited
umtx shared locks               (-o)  unlimited
pipebuf                 (kbytes, -y)  unlimited
virtual machines                (-V)  unlimited
--End resource limits--
=======================<phase: check-sanity   >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>  License BSD2CLAUSE BSD3CLAUSE MIT accepted by the user
===========================================================================
=======================<phase: pkg-depends    >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===>   build2-0.18.1 depends on file: /usr/local/sbin/pkg - not found
===>   Installing existing package /packages/All/pkg-2.7.5.pkg
[main-amd64-default-job-02] Installing pkg-2.7.5...
[main-amd64-default-job-02] Extracting pkg-2.7.5: .......... done
===>   build2-0.18.1 depends on file: /usr/local/sbin/pkg - found
===>   Returning to build of build2-0.18.1
===========================================================================
=======================<phase: fetch-depends  >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===========================================================================
=======================<phase: fetch          >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>  License BSD2CLAUSE BSD3CLAUSE MIT accepted by the user
===> Fetching all distfiles required by build2-0.18.1 for building
===========================================================================
=======================<phase: checksum       >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>  License BSD2CLAUSE BSD3CLAUSE MIT accepted by the user
===> Fetching all distfiles required by build2-0.18.1 for building
=> SHA256 Checksum OK for build2-toolchain-0.18.1.tar.xz.
===========================================================================
=======================<phase: extract-depends>============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===========================================================================
=======================<phase: extract        >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>  License BSD2CLAUSE BSD3CLAUSE MIT accepted by the user
===> Fetching all distfiles required by build2-0.18.1 for building
===>  Extracting for build2-0.18.1
=> SHA256 Checksum OK for build2-toolchain-0.18.1.tar.xz.
===========================================================================
=======================<phase: patch-depends  >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===========================================================================
=======================<phase: patch          >============================
===== env: NO_DEPENDS=yes USER=root UID=0 GID=0
===>  Patching for build2-0.18.1
===========================================================================
=======================<phase: build-depends  >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===>   build2-0.18.1 depends on package: gmake>=4.4.1 - not found
===>   Installing existing package /packages/All/gmake-4.4.1.pkg
[main-amd64-default-job-02] Installing gmake-4.4.1...
[main-amd64-default-job-02] `-- Installing gettext-runtime-1.0_1...
[main-amd64-default-job-02] |   `-- Installing indexinfo-0.3.1_1...
[main-amd64-default-job-02] |   `-- Extracting indexinfo-0.3.1_1: .... done
[main-amd64-default-job-02] `-- Extracting gettext-runtime-1.0_1: .......... 
done
[main-amd64-default-job-02] Extracting gmake-4.4.1: .......... done
===>   build2-0.18.1 depends on package: gmake>=4.4.1 - found
===>   Returning to build of build2-0.18.1
===>   build2-0.18.1 depends on package: pkgconf>=1.3.0_1 - not found
===>   Installing existing package /packages/All/pkgconf-2.4.3_1,1.pkg
[main-amd64-default-job-02] Installing pkgconf-2.4.3_1,1...
[main-amd64-default-job-02] Extracting pkgconf-2.4.3_1,1: .......... done
===>   build2-0.18.1 depends on package: pkgconf>=1.3.0_1 - found
===>   Returning to build of build2-0.18.1
===========================================================================
=======================<phase: lib-depends    >============================
===== env: USE_PACKAGE_DEPENDS_ONLY=1 USER=root UID=0 GID=0
===>   build2-0.18.1 depends on shared library: libsqlite3.so - not found
===>   Installing existing package /packages/All/sqlite3-3.53.1,1.pkg
[main-amd64-default-job-02] Installing sqlite3-3.53.1,1...
<snip>
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:187:51:
 error: no viable conversion from 'optional<path_pattern_term>' to 'bool'
  187 |     path_pattern_iterator& operator++ () {assert (t_); next (); return 
*this;}
      |                                                   ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/token.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/token.hxx:7:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/types.hxx:60:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/process.hxx:20:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/fdstream.hxx:17:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:189:44:
 error: no viable conversion from 'const optional<path_pattern_term>' to 'bool'
  189 |     reference operator*  () const {assert (t_); return *t_;}
      |                                            ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/token.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/token.hxx:7:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/types.hxx:60:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/process.hxx:20:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/fdstream.hxx:17:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:190:44:
 error: no viable conversion from 'const optional<path_pattern_term>' to 'bool'
  190 |     pointer   operator-> () const {assert (t_); return &*t_;}
      |                                            ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
3 errors generated.
error: process c++ exited with code 1
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/obja{token...a.o}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/libua{build2...a.u.a}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/liba{build2.a}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/b/exe{b.}
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:9:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/types.hxx:60:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/process.hxx:20:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/fdstream.hxx:17:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:187:51:
 error: no viable conversion from 'optional<path_pattern_term>' to 'bool'
  187 |     path_pattern_iterator& operator++ () {assert (t_); next (); return 
*this;}
      |                                                   ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:9:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/types.hxx:60:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/process.hxx:20:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/fdstream.hxx:17:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:189:44:
 error: no viable conversion from 'const optional<path_pattern_term>' to 'bool'
  189 |     reference operator*  () const {assert (t_); return *t_;}
      |                                            ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:9:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/types.hxx:60:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/process.hxx:20:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/fdstream.hxx:17:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/filesystem.hxx:33:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/libbutl/libbutl/path-pattern.hxx:190:44:
 error: no viable conversion from 'const optional<path_pattern_term>' to 'bool'
  190 |     pointer   operator-> () const {assert (t_); return &*t_;}
      |                                            ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/file.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/scope.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/module.hxx:12:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/variable.hxx:2301:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/variable.ixx:213:13:
 error: no viable conversion from 'const value' to 'bool'
  213 |     assert (v);
      |             ^
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/variable.hxx:354:14:
 note: explicit conversion function is not a candidate
  354 |     explicit operator bool () const {return !null;}
      |              ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/file.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/scope.hxx:11:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/module.hxx:54:30:
 error: no viable conversion from 'shared_ptr<build2::module>' to 'bool'
   54 |     T& module_as () {assert (module); return static_cast<T&> (*module);}
      |                              ^~~~~~
/usr/include/c++/v1/__memory/shared_ptr.h:646:34: note: explicit conversion 
function is not a candidate
  646 |   _LIBCPP_HIDE_FROM_ABI explicit operator bool() const _NOEXCEPT { 
return get() != nullptr; }
      |                                  ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/file.hxx:12:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/target.hxx:2779:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/target.txx:35:15:
 error: no viable conversion from 'optional<string>' (aka 
'optional<basic_string<char>>') to 'bool'
   35 |       assert (e);
      |               ^
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:11:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/file.hxx:12:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/target.hxx:2779:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/target.txx:100:15:
 error: no viable conversion from 'optional<string>' (aka 
'optional<basic_string<char>>') to 'bool'
  100 |       assert (e);
      |               ^
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:58:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   58 |         case token_type::in_l:    assert (l);   return *l;
      |                                           ^
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:59:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   59 |         case token_type::in_ll:   assert (ll);  return *ll;
      |                                           ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:60:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   60 |         case token_type::in_lll:  assert (lll); return *lll;
      |                                           ^~~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:61:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   61 |         case token_type::out_g:   assert (g);   return *g;
      |                                           ^
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:62:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   62 |         case token_type::out_gg:  assert (gg);  return *gg;
      |                                           ^~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:4:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.hxx:15:
In file included from 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/parser.hxx:15:
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/script/lexer.hxx:63:43:
 error: no viable conversion from 'const optional<token_type>' to 'bool'
   63 |         case token_type::out_ggg: assert (ggg); return *ggg;
      |                                           ^~~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/parser.cxx:1151:21:
 error: no viable conversion from 'optional<line>' to 'bool'
 1151 |             assert (ts->if_cond_); // Note: also present for the `else` 
line.
      |                     ^~~~~~~~~~~~
/usr/include/assert.h:81:40: note: expanded from macro 'assert'
   81 | #define assert(...)     (__assert_sanitize(__VA_ARGS__),       \
      |                                            ^~~~~~~~~~~
/usr/include/assert.h:76:64: note: expanded from macro '__assert_sanitize'
   76 | #define __assert_sanitize(...)  
(void)sizeof(((bool(*)(bool))0)(__VA_ARGS__))
      |                                                                 
^~~~~~~~~~~
/usr/include/c++/v1/optional:825:44: note: explicit conversion function is not 
a candidate
  825 |   _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const 
noexcept { return has_value(); }
      |                                            ^
14 errors generated.
error: process c++ exited with code 1
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/test/script/obja{parser...a.o}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/libua{build2...a.u.a}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/libbuild2/liba{build2.a}
  info: while updating 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/b/exe{b.}
info: failed to update 
/wrkdirs/usr/ports/devel/build2/work/build2-toolchain-0.18.1/build2/b/exe{b.}
*** Error code 1

Stop.
make: stopped making "build" in /usr/ports/devel/build2

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