ports/186642: [patch] clang has USE_PYTHON_BUILD=yes, but requires python2

[Gereon Kaiping]

>Number:         186642
>Category:       ports
>Synopsis:       [patch] clang has USE_PYTHON_BUILD=3DYES but requires pytho=
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 11 01:40:02 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Gereon Kaiping
>Release:        FreeBSD 10.0-BETA3 amd64
>Organization:
>Environment:
System: FreeBSD parhippus 10.0-BETA3 FreeBSD 10.0-BETA3 #0 r258657:
Tue Nov 26 20:13:28 UTC 2013
root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64

Running python 3.3.3 as python default version, python2.7 installed

>Description:

lang/clang33's configure file (generated with autoconf) tests
explicitly for the python version, requesting major version =3D=3D 2 and
minor version >=3D 5, and therefore fails with the cryptic message that
the python version (parsed from the empty string) is not =E2=80=9C>=3D 2.5=
=E2=80=9D when
pytho
n3 is the default.

>How-To-Repeat:

# cd /usr/ports/lang/clang33
# make -V PYTHON_VERSION
python3.3
# make configure
[=E2=80=A6snip=E2=80=A6]
checking optional compiler flags... -Wno-variadic-macros
-Wno-missing-field-initializers -Wcovered-switch-default
-Wno-uninitialized
checking for python... user defined:
checking for python >=3D 2.5...   File "<string>", line 1
    import sys; print sys.version.split()[0]
                        ^
SyntaxError: invalid syntax
test: : bad number
not found
configure: error: found python  (/usr/local/bin/python3.3); required >=3D 2=
.5
See `config.log' for more details.
=3D=3D=3D>  Script "configure" failed unexpectedly.
Please report the problem to brooks at FreeBSD.org [maintainer] and attach the
"/usr/ports/lang/clang33/work/llvm-3.3.src/config.log" including the output
of the failure of your make command. Also, it might be a good idea to provi=
de
an overview of all packages installed on your system (e.g. a
/usr/local/sbin/pkg-static info -g -Ea).
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/lang/clang33
*** Error code 1

Stop.
make: stopped in /usr/ports/lang/clang33

>Fix:

patch lang/clang's Makefile as follows:

--- Makefile.orig       2014-02-11 00:54:52.000000000 +0000
+++ Makefile    2014-02-11 00:55:03.000000000 +0000
@@ -34,7 +34,7 @@
 GNU_CONFIGURE_PREFIX=3D  ${LLVM_PREFIX}
 USES=3D          gmake perl5
 USE_LDCONFIG=3D  yes
-USE_PYTHON_BUILD=3D      yes
+USE_PYTHON_BUILD=3D      -2.9

 MAKE_ARGS=3D     CLANG_TBLGEN=3D${WRKSRC}/${RELTYPE}/bin/clang-tblgen \
                LLVMIncDir=3D${LLVM_PREFIX}/include \
>Release-Note:
>Audit-Trail:
>Unformatted:
 n2