>Submitter-Id:  current-users
>Originator:    Marcus von Appen
>Organization:
>Confidential:  no 
>Synopsis:      Python version propagation breaks USE_PYTHON= usage for 
>dependency builds
>Severity:      non-critical
>Priority:      high
>Category:      ports
>Class:         sw-bug
>Release:       FreeBSD 8.3-PRERELEASE amd64
>Environment:
System: FreeBSD medusa.sysfault.org 8.3-PRERELEASE FreeBSD 8.3-PRERELEASE #8: 
Tue Apr 10 19:38:00 CEST 2012 
r...@medusa.sysfault.org:/usr/obj/usr/src/sys/MEDUSA amd64


        
>Description:

        Given that port A defines PYTHON_VERSION=3.2, dependencies,
        which might define PYTHON_VERSION <> 3.2, will fail to build,
        since the version propagation to .MAKEFLAGS and DEPENDS_ARGS will
        cause a IGNORE to be triggered.

        bsd.python.mk Line 342:
        DEPENDS_ARGS+=     PYTHON_VERSION=${PYTHON_VERSION}

        bsd.python.mk Line 357f.
        # Propagate the chosen python version to submakes.
        .MAKEFLAGS: PYTHON_VERSION=python${_PYTHON_VERSION}

        Both will cause PYTHON_VERSION to be appended to the
        command-line arguments/.MAKEFLAGS for the dependencies, causing
        the error described above.

>How-To-Repeat:
        Create two directories /usr/ports/devel/fake1 and
        /usr/ports/devel/fake2. Add the Makefiles to each from the diffs
        below.

diff -Nur /nonexistent/Makefile devel/fake1/Makefile
--- /nonexistent/Makefile       1970-01-01 01:00:00.000000000 +0100
+++ devel/fake1/Makefile        2012-04-27 20:19:53.000000000 +0200
@@ -0,0 +1,9 @@
+PORTNAME=      fake1
+PORTVERSION=   1
+CATEGORIES=    devel
+
+LIB_DEPENDS=   fake2.0:${PORTSDIR}/devel/fake2
+
+USE_PYTHON=    3.2
+
+.include <bsd.port.mk>




diff -Nur /nonexistent/Makefile devel/fake2/Makefile
--- /nonexistent/Makefile       1970-01-01 01:00:00.000000000 +0100
+++ devel/fake2/Makefile        2012-04-27 20:21:28.000000000 +0200
@@ -0,0 +1,7 @@
+PORTNAME=      fake2
+PORTVERSION=   1
+CATEGORIES=    devel
+
+USE_PYTHON=    2.5-3.1
+
+.include <bsd.port.mk>



        Afterwards run "make depends" in /usr/ports/devel/fake1:

/usr/ports/devel/fake1 # make depends
===>   fake1-1 depends on shared library: fake2.0 - not found
===>    Verifying install for fake2.0 in /usr/ports/devel/fake2
===>  fake2-1 needs Python 3.1 at most. But you specified 3.2.
*** Error code 1

Stop in /usr/ports/devel/fake2.
*** Error code 1

Stop in /usr/ports/devel/fake1.

        This approach currently break ports such as the enhancement PR
        for graphics/blender (ports/167061), in which blender pulls in
        devel/boost-python-libs as indirect dependency of
        graphics/openimageio.

>Fix:

        The easiest would be to remove the both offending
        lines. However, those seem to be used to specify a Python
        version to (maybe) keep the installation count of different
        Python versions low. If there is no specific purpose for the
        both offending lines except from that, they should be
        removed.
_______________________________________________
freebsd-python@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-python
To unsubscribe, send any mail to "freebsd-python-unsubscr...@freebsd.org"

Reply via email to