[RFC 02/21] maint: Check libclang and its python3 binding

Shi Lei shi_lei at massclouds.com
Tue Jun 30 16:06:51 UTC 2020


>On Wed, Jun 10, 2020 at 09:20:30AM +0800, Shi Lei wrote:
>> Make sure libclang and its python3 binding have been installed.
>>
>> Signed-off-by: Shi Lei <shi_lei at massclouds.com>
>> ---
>>  configure.ac | 12 ++++++++++++
>>  1 file changed, 12 insertions(+)
>>
>> diff --git a/configure.ac b/configure.ac
>> index 6c8ac2f..747e52a 100644
>> --- a/configure.ac
>> +++ b/configure.ac
>> @@ -707,6 +707,18 @@ if test -z "$FLAKE8"; then
>>      AC_MSG_WARN(['flake8' binary is required to check python code style])
>>  fi
>> 
>> +dnl Need libclang and its python3 binding to generate some functions
>> +LIBCLANG_LINE=`ldconfig -p | grep libclang`
>
>As with previous patch, this ends up matching libclang-cpp.so for my
>host and thus fails.
>
>IMHO, we shouldn't be trying to get the path at all - just let the
>python library use its default.... 

As I mentioned in previous patch, I suggest we should reconsider its necessity.

>
>> +LIBCLANG_PATH=`expr "$LIBCLANG_LINE" : '.* => \(.*\)$'`
>> +if test -z "$LIBCLANG_PATH"; then
>> +    AC_MSG_ERROR([libclang is required by libvirt])
>> +fi
>
>So all this can go.
>
>> +HAVE_PY3_CLANG=`python3 -c 'import clang.cindex;print("ok")' 2>/dev/null`
>> +if test -z "$HAVE_PY3_CLANG"; then
>> +    AC_MSG_ERROR(['python3-clang' is required. Execute 'pip3 install clang'.])
>> +fi
>
>but this is needed to check for the require python lib. 

Okay.

Regards,
Shi Lei

>
>> +AC_SUBST(LIBCLANG_PATH)
>> +
>>  dnl Python3 < 3.7 treats the C locale as 7-bit only.
>>  dnl We must force env vars so it treats it as UTF-8
>>  dnl regardless of the user's locale.
>> --
>> 2.17.1
>>
>>
>
>Regards,
>Daniel
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