=> Bootstrap dependency digest>=20010302: found digest-20180917
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
=> Checksum SHA1 OK for u-boot-2019.01-rc2.tar.bz2
=> Checksum RMD160 OK for u-boot-2019.01-rc2.tar.bz2
=> Checksum SHA512 OK for u-boot-2019.01-rc2.tar.bz2
===> Installing dependencies for u-boot-bananapi-r2-2019.01-rc2
==========================================================================
The following variables will affect the build process of this package,
u-boot-bananapi-r2-2019.01-rc2.  Their current value is shown below:

        * PYTHON_VERSION_DEFAULT = 27

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

        * PYPACKAGE = python27

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 dtc>=1.4.2: found dtc-1.4.7
=> Tool dependency swig>=1.3: found swig-1.3.38nb1
=> Tool dependency bison>=1.0: found bison-3.0.5
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency gsed>=3.0.2: found gsed-4.6
=> Tool dependency pkgconf-[0-9]*: found pkgconf-1.4.1nb1
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency cross-arm-none-eabi-gcc-[0-9]*: found cross-arm-none-eabi-gcc-8.2.0nb1
=> Build dependency python27>=2.7.1nb2: found python27-2.7.15nb1
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
===> Overriding tools for u-boot-bananapi-r2-2019.01-rc2
===> Extracting for u-boot-bananapi-r2-2019.01-rc2
tar: Global extended headers posix ustar archive. Extracting as plain files. Following files might be in the wrong directory or have wrong attributes.
===> Patching for u-boot-bananapi-r2-2019.01-rc2
===> Creating toolchain wrappers for u-boot-bananapi-r2-2019.01-rc2
===> Configuring for u-boot-bananapi-r2-2019.01-rc2
=> Replacing python2 interpreter in scripts/fill_scrapyard.py tools/binman/binman.py tools/genboardscfg.py tools/moveconfig.py.
=> Checking for portability problems in extracted files
ERROR: [check-portability.awk] => Found test ... == ...:
ERROR: [check-portability.awk] tools/imx_cntr_image.sh: 	if [ $f == "u-boot-dtb.bin" ]; then

Explanation:
===========================================================================
The "test" command, as well as the "[" command, are not required to know
the "==" operator. Only a few implementations like bash and some
versions of ksh support it.

When you run "test foo == foo" on a platform that does not support the
"==" operator, the result will be "false" instead of "true". This can
lead to unexpected behavior.

There are two ways to fix this error message. If the file that contains
the "test ==" is needed for building the package, you should create a
patch for it, replacing the "==" operator with "=". If the file is not
needed, add its name to the CHECK_PORTABILITY_SKIP variable in the
package Makefile.
===========================================================================

*** Error code 1

Stop.
make[1]: stopped in /data/pkgsrc/sysutils/u-boot-bananapi-r2
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/sysutils/u-boot-bananapi-r2