net/freerdp2 missing build dependency on python27 via gnome-doc-utils/py-xslt

[Bodie <bodie%bodie.cz@localhost>]

Hi all,

$ uname -a
NetBSD hostname 9.99.75 NetBSD 9.99.75 (GENERIC) #0: Fri Nov 20 20:01:16 
UTC 2020  
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
$

$ pkg_info | grep -i python
python37-3.7.9nb2   Interpreted, interactive, object-oriented 
programming language
glib2-tools-2.66.0  GLib2/gobject python-dependent tools
py37-expat-3.7.9    Python interface to expat
py37-setuptools-50.3.2 New Python packaging system
py37-libxml2-2.9.10nb2 Python wrapper for libxml2
$

$ pwd
/usr/pkgsrc/net/freerdp2
$

$ make
.
.
.
.
.
=> Returning to build of gnome-doc-utils-0.20.10nb6
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency perl>=5.0: found perl-5.32.0nb1
=> Tool dependency pkgconf-[0-9]*: found pkgconf-1.7.3
=> Build dependency libxml2>=2.9.10nb3: found libxml2-2.9.10nb3
=> Build dependency libxslt>=1.1.34nb4: found libxslt-1.1.34nb4
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency py27-libxml2>=2.6.16: NOT found
=> Verifying reinstall for ../../textproc/py-libxml2
=> Bootstrap dependency digest>=20010302: found digest-20190127
===> 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'.
WARNING: Package version py37-libxml2-2.9.10nb2 in 
/usr/pkgsrc/textproc/py-libxml2/work
WARNING: Current version py27-libxml2-2.9.10nb2 in textproc/py-libxml2
WARNING: Cleaning and rebuilding py27-libxml2-2.9.10nb2...
===> Cleaning for py27-libxml2-2.9.10nb2
===> 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'.

===> Overriding tools for py27-libxml2-2.9.10nb2
===> Extracting for py27-libxml2-2.9.10nb2
===> Patching for py27-libxml2-2.9.10nb2
=> Applying pkgsrc patches for py27-libxml2-2.9.10nb2
===> Creating toolchain wrappers for py27-libxml2-2.9.10nb2
ERROR: python27>=2.7 python27>=2.7 is not installed; can't buildlink 
files.
*** Error code 1

Stop.
make[8]: stopped in /usr/pkgsrc/textproc/py-libxml2
*** Error code 1

Shouldn't be gnome-doc-utils to be using python37 already? Other 
projects
switched already and seems to be running fine.

anyway tried these changes......

/usr/pkgsrc/textproc/gnome-doc-utils
PYTHON_VERSIONS_ACCEPTED=       37 # py-libxslt

then py-libxslt fail with:


=> Full dependency py37-libxml2>=2.6.16: found py37-libxml2-2.9.10nb2
=> Full dependency py37-libxslt>=1.1.12: NOT found
=> Verifying reinstall for ../../textproc/py-libxslt
ERROR: This package has set PKG_FAIL_REASON:
ERROR: No valid Python version
*** Error code 1

so changed
/usr/pkgsrc/textproc/py-libxslt
PYTHON_VERSIONS_ACCEPTED=       37

howere rerun make after cleanup ends with:

failed to generate stubs for libxslt, aborting...
Traceback (most recent call last):
  File "setup.py", line 68, in <module>
    import generator
  File 
"/usr/pkgsrc/textproc/py-libxslt/work/libxslt-1.1.34/python/generator.py", 
line 42
    print "close"
                ^
SyntaxError: Missing parentheses in call to 'print'. Did you mean 
print("close")?

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "setup.py", line 71, in <module>
    print(sys.exc_type, sys.exc_value)
AttributeError: module 'sys' has no attribute 'exc_type'

the I found about /usr/pkgsrc/lang/python/pyversion.mk so reverted back
and went to pkgsrc guide :-)

There I found 
https://www.netbsd.org/docs/pkgsrc/creating.html#creating.python-module
and so set:

PYTHON_VERSIONS_INCOMPATIBLE=       37

in /usr/pkgsrc/textproc/py-xslt/Makefile

and now is all fine and freerdp2 build properly. I know it is quick and 
dirty change
so can't tell if this can be accepted as a change in pkgsrc

$ xfreerdp2 /version
This is FreeRDP version 2.1.2 (2.1.2)
$