On Monday, June 10, 2013 12:55:16 PM UTC+2, Bram Moolenaar wrote:
> On my work system I ran into problems when trying to build with both
>
> Python 2 and 3.
>
>
>
> The first error is:
>
>
>
> vim/src/if_python3.c:87: warning: "PyString_Check" redefined [enabled by
> default]
>
> 926 /usr/include/python2.7/stringobject.h:58: note: this is the location of
> the previous definition
>
>
>
> I didn't see this error on my home system. I wonder if there is
>
> something wrong with the configure stuff. config.log:
>
>
>
> configure:5221: checking --enable-pythoninterp argument
>
> configure:5230: result: yes
>
> configure:5237: checking for python2
>
> configure:5255: found /usr/bin/python2
>
> configure:5267: result: /usr/bin/python2
>
> configure:5280: checking Python version
>
> configure:5289: result: 2.7
>
> configure:5292: checking Python is 2.2 or better
>
> configure:5297: result: yep
>
> configure:5300: checking Python's install prefix
>
> configure:5309: result: /usr
>
> configure:5312: checking Python's execution prefix
>
> configure:5321: result: /usr
>
> configure:5343: checking Python's configuration directory
>
> configure:5365: result: /usr/lib/python2.7/config
>
> configure:5424: checking if -pthread should be used
>
> configure:5451: gcc -o conftest -O2 -fno-strength-reduce -Wall -pthread
>
> -I/usr/local/include -L/usr/local/lib conftest.c >&5
>
> configure:5451: $? = 0
>
> configure:5452: result: yes
>
> configure:5467: checking if compile and link flags for Python are sane
>
> configure:5484: gcc -o conftest -O2 -fno-strength-reduce -Wall
>
> -I/usr/include/python2.7 -DPYTHON_HOME=\"/usr\" -pthread
>
> -I/usr/local/include -L/usr/local/lib conftest.c
>
> -L/usr/lib/python2.7/config -lpython2.7 -lpthread -ldl -lutil -lm
>
> -Xlinker -export-dynamic -Wl,-O1 -Wl,-Bsymbolic-functions >&5
>
> <command-line>:0:14: warning: missing terminating " character [enabled
>
> by default]
>
> configure:5484: $? = 0
>
> configure:5485: result: yes
>
> configure:5526: checking --enable-python3interp argument
>
> configure:5535: result: yes
>
> configure:5542: checking for python3
>
> configure:5575: result: no
>
> configure:5542: checking for python
>
> configure:5560: found /usr/bin/python
>
> configure:5572: result: /usr/bin/python
>
> configure:5585: checking Python version
>
> configure:5594: result: 2.7
>
> configure:5597: checking Python's abiflags
>
> configure:5611: result:
>
> configure:5614: checking Python's install prefix
>
> configure:5623: result: /usr
>
> configure:5626: checking Python's execution prefix
>
> configure:5635: result: /usr
>
> configure:5657: checking Python's configuration directory
>
> configure:5683: result: /usr/lib/python2.7/config
>
> configure:5729: checking if -pthread should be used
>
> configure:5756: gcc -o conftest -O2 -fno-strength-reduce -Wall -pthread
>
> -I/usr/local/include -L/usr/local/lib conftest.c >&5
>
> configure:5756: $? = 0
>
> configure:5757: result: yes
>
> configure:5772: checking if compile and link flags for Python 3 are sane
>
>
>
> Looks like Python 2.7 was not rejected when looking for Python 3.
>
> Can we think of a proper check that the found Python actually is Python
>
> 3?
We could do it the same way it is done with Python 2. Please, see the patch
(vim 7.3.1163).
Also, though unrelated to this problem, older GCC compilers (version < 4) do
not accept "-pthread" on Solaris, so to add support for multithreading using
the POSIX threads library we need to use "-pthreads".
I added a fix for this as well.
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--- ../vim-orig/src/configure.in Tue Jun 10 23:20:19 2013
+++ src/configure.in Tue Jun 10 23:03:21 2013
@@ -986,6 +986,9 @@
threadsafe_flag="-D_THREAD_SAFE"
thread_lib="-pthread"
fi
+ if test "`(uname) 2>/dev/null`" = SunOS; then
+ threadsafe_flag="-pthreads"
+ fi
fi
libs_save_old=$LIBS
if test -n "$threadsafe_flag"; then
@@ -1058,6 +1061,13 @@
${vi_cv_path_python3} -c 'import sys; print(sys.version[:3])'`
]])
+ dnl -- it must be at least version 3
+ AC_MSG_CHECKING(Python is 3.0 or better)
+ if ${vi_cv_path_python3} -c \
+ "import sys; sys.exit(${vi_cv_var_python3_version} < 3.0)"
+ then
+ AC_MSG_RESULT(yep)
+
dnl -- get abiflags for python 3.2 or higher (PEP 3149)
AC_CACHE_CHECK(Python's abiflags,vi_cv_var_python3_abiflags,
[
@@ -1176,6 +1186,9 @@
threadsafe_flag="-D_THREAD_SAFE"
thread_lib="-pthread"
fi
+ if test "`(uname) 2>/dev/null`" = SunOS; then
+ threadsafe_flag="-pthreads"
+ fi
fi
libs_save_old=$LIBS
if test -n "$threadsafe_flag"; then
@@ -1213,6 +1226,9 @@
PYTHON3_CFLAGS=
fi
fi
+ else
+ AC_MSG_RESULT(too old; need Python version 3.0 or later)
+ fi
fi
fi
