Build failure for devel/at-spi2-atk

[Paul Goyette <paul%whooppee.com@localhost>]

With
* pkgsrc updated just a few hours ago
* building on a NetBSD amd64 9.99.15 host
* building into a completely empty chroot sandbox

Getting the following error building (this is the entire log, only
about 70-80 lines long):

===> Cleaning for at-spi2-atk-2.33.2
=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for at-spi2-atk-2.33.2.tar.xz
=> Checksum RMD160 OK for at-spi2-atk-2.33.2.tar.xz
=> Checksum SHA512 OK for at-spi2-atk-2.33.2.tar.xz
===> Installing dependencies for at-spi2-atk-2.33.2
==========================================================================
The following variables will affect the build process of this package,
at-spi2-atk-2.33.2.  Their current value is shown below:

        * PYTHON_VERSION_DEFAULT = 37

Based on these variables, the following variables have been set:

        * PYPACKAGE = python37

You may want to abort the process now with CTRL-C and change their value
before continuing.  Be sure to run `/usr/bin/make clean' after
the changes.
==========================================================================
=> Tool dependency glib2-tools-[0-9]*: found glib2-tools-2.60.6
=> Tool dependency pkgconf-[0-9]*: found pkgconf-1.6.0
=> Build dependency meson-[0-9]*: found meson-0.52.0
=> Build dependency x11-links>=1.30: found x11-links-1.30
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency atk>=2.33.3: found atk-2.33.3
=> Full dependency glib2>=2.34.0: found glib2-2.60.6
=> Full dependency at-spi2-core>=2.33.2: found at-spi2-core-2.33.2nb1
=> Full dependency dbus>=1.5: found dbus-1.12.16
=> Full dependency python37>=3.7.0: found python37-3.7.5
===> Overriding tools for at-spi2-atk-2.33.2
===> Extracting for at-spi2-atk-2.33.2
===> Patching for at-spi2-atk-2.33.2
=> Applying pkgsrc patches for at-spi2-atk-2.33.2
===> Creating toolchain wrappers for at-spi2-atk-2.33.2
===> Configuring for at-spi2-atk-2.33.2
=> Generating pkg-config file for builtin expat package.
cd /tmp/pkgs/devel/at-spi2-atk/work.x86_64/at-spi2-atk-2.33.2 && cd . && /usr/bin/env USETOOLS=no PTHREAD_CFLAGS=\ -pthread\  PTHREAD_LDFLAGS=\ -pthread PTHREAD_LIBS= PTHREADBASE=/usr DL_CFLAGS=\ -pthread\  DL_LDFLAGS=\ -pthread DL_LIBS= PYTHON=/usr/pkg/bin/python3.7 CC=gcc CFLAGS=-O2\ -D_FORTIFY_SOURCE=2\ -I/usr/pkg/include\ -I/usr/include\ -I/usr/pkg/include/glib-2.0\ -I/usr/pkg/include/gio-unix-2.0\ -I/usr/pkg/lib/glib-2.0/include\ -I/usr/X11R7/include\ -I/usr/pkg/include/python3.7 CPPFLAGS=-I/usr/pkg/include\ -I/usr/include\ -I/usr/pkg/include/glib-2.0\ -I/usr/pkg/include/gio-unix-2.0\ -I/usr/pkg/lib/glib-2.0/include\ -I/usr/X11R7/include\ -I/usr/pkg/include/python3.7 CXX=c++ CXXFLAGS=-O2\ -D_FORTIFY_SOURCE=2\ -I/usr/pkg/include\ -I/usr/include\ -I/usr/pkg/include/glib-2.0\ -I/usr/pkg/include/gio-unix-2.0\ -I/usr/pkg/lib/glib-2.0/include\ -I/usr/X11R7/include\ -I/usr/pkg/include/python3.7 COMPILER_RPATH_FLAG=-Wl,-R F77=gfortran FC=gfortran FFLAGS=-O LANG=C LC_ALL=C LC_COLLATE=C LC_CTYPE=C LC_MESSAGES=C LC_MONETARY=C LC_NUMERIC=C LC_TIME=C LDFLAGS=-L/usr/pkg/lib\ -Wl,-R/usr/pkg/lib\ -L/usr/lib\ -Wl,-R/usr/lib\ -L/usr/X11R7/lib\ -Wl,-R/usr/X11R7/lib LINKER_RPATH_FLAG=-R PATH=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.cwrapper/bin:/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.buildlink/bin:/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.gcc/bin:/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.tools/bin:/usr/pkg/bin:/home/paul/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R7/bin:/usr/X11R6/bin:/usr/pkg/bin:/usr/pkg/sbin:/usr/games:/usr/local/bin:/usr/local/sbin:/usr/pkg/bin:/usr/X11R7/bin PREFIX=/usr/pkg MAKELEVEL=0 CONFIG_SITE= PKG_SYSCONFDIR=/usr/pkg/etc CXXCPP=cpp HOME=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.home CWRAPPERS_CONFIG_DIR=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.cwrapper/config CPP=cpp LOCALBASE=/usr/pkg X11BASE=/usr/X11R7 PKGMANDIR=man PKGINFODIR=info PKGGNUDIR=gnu/ MAKECONF=/dev/null OBJECT_FMT=ELF USETOOLS=no BSD_INSTALL_PROGRAM=/usr/bin/install\ -c\ -s\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_SCRIPT=/usr/bin/install\ -c\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_LIB=/usr/bin/install\ -c\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_DATA=/usr/bin/install\ -c\ -o\ root\ -g\ wheel\ -m\ 644 BSD_INSTALL_MAN=/usr/bin/install\ -c\ -o\ root\ -g\ wheel\ -m\ 644 BSD_INSTALL=/usr/bin/install BSD_INSTALL_PROGRAM_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_SCRIPT_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_LIB_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_DATA_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_MAN_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 755 BSD_INSTALL_GAME=/usr/bin/install\ -c\ -s\ -o\ root\ -g\ wheel\ -m\ 2555 BSD_INSTALL_GAME_DATA=/usr/bin/install\ -c\ -o\ root\ -g\ wheel\ -m\ 664 BSD_INSTALL_GAME_DIR=/usr/bin/install\ -d\ -o\ root\ -g\ wheel\ -m\ 775 INSTALL_INFO= MAKEINFO=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.tools/bin/makeinfo FLEX= BISON= PKG_CONFIG=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.tools/bin/pkg-config PKG_CONFIG_LIBDIR=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.buildlink/lib/pkgconfig:/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.buildlink/share/pkgconfig PKG_CONFIG_LOG=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.pkg-config.log PKG_CONFIG_PATH= CWRAPPERS_CONFIG_DIR=/tmp/pkgs/devel/at-spi2-atk/work.x86_64/.cwrapper/config meson  --prefix /usr/pkg --libdir lib --mandir man  --sysconfdir /usr/pkg/etc --buildtype=plain  . output
The Meson build system
Version: 0.52.0
Source dir: /tmp/pkgs/devel/at-spi2-atk/work.x86_64/at-spi2-atk-2.33.2
Build dir: /tmp/pkgs/devel/at-spi2-atk/work.x86_64/at-spi2-atk-2.33.2/output
Build type: native build
Project name: at-spi2-atk
Project version: 2.33.2
Appending CFLAGS from environment: '-O2 -D_FORTIFY_SOURCE=2 -I/usr/pkg/include -I/usr/include -I/usr/pkg/include/glib-2.0 -I/usr/pkg/include/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include -I/usr/X11R7/include -I/usr/pkg/include/python3.7'
Appending LDFLAGS from environment: ['-L/usr/pkg/lib', '-Wl,-R/usr/pkg/lib', '-L/usr/lib', '-Wl,-R/usr/lib', '-L/usr/X11R7/lib', '-Wl,-R/usr/X11R7/lib']
Appending CPPFLAGS from environment: '-I/usr/pkg/include -I/usr/include -I/usr/pkg/include/glib-2.0 -I/usr/pkg/include/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include -I/usr/X11R7/include -I/usr/pkg/include/python3.7'
Appending CFLAGS from environment: '-O2 -D_FORTIFY_SOURCE=2 -I/usr/pkg/include -I/usr/include -I/usr/pkg/include/glib-2.0 -I/usr/pkg/include/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include -I/usr/X11R7/include -I/usr/pkg/include/python3.7'
Appending LDFLAGS from environment: ['-L/usr/pkg/lib', '-Wl,-R/usr/pkg/lib', '-L/usr/lib', '-Wl,-R/usr/lib', '-L/usr/X11R7/lib', '-Wl,-R/usr/X11R7/lib']
Appending CPPFLAGS from environment: '-I/usr/pkg/include -I/usr/include -I/usr/pkg/include/glib-2.0 -I/usr/pkg/include/gio-unix-2.0 -I/usr/pkg/lib/glib-2.0/include -I/usr/X11R7/include -I/usr/pkg/include/python3.7'
C compiler for the host machine: gcc (gcc 7.4.0 "gcc (nb3 20190319) 7.4.0")
C linker for the host machine: GNU ld.bfd 2.31.1
Host machine cpu family: x86_64
Host machine cpu: x86_64
Configuring config.h using configuration
Found pkg-config: /tmp/pkgs/devel/at-spi2-atk/work.x86_64/.tools/bin/pkg-config (1.6.0)
Run-time dependency dbus-1 found: YES 1.12.16
Run-time dependency glib-2.0 found: YES 2.60.6
Run-time dependency gobject-2.0 found: YES 2.60.6
Run-time dependency gmodule-2.0 found: YES 2.60.6
Run-time dependency atk found: YES 2.33.3
Run-time dependency atspi-2 found: YES 2.33.2
Found CMake: /usr/pkg/bin/cmake (3.15.4)

meson.build:51:0: ERROR: Unknown compiler(s): [['c++']]

A full log can be found at /tmp/pkgs/devel/at-spi2-atk/work.x86_64/at-spi2-atk-2.33.2/output/meson-logs/meson-log.txt
*** Error code 1

Stop.
make[1]: stopped in /build/pkgsrc/devel/at-spi2-atk
WARNING: *** Please consider adding c++ to USE_LANGUAGES in the package Makefile.
*** Error code 1

Stop.
make: stopped in /build/pkgsrc/devel/at-spi2-atk

+--------------------+--------------------------+-----------------------+
| Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:     |
| (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost     |
| Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost   |
+--------------------+--------------------------+-----------------------+