Hi,

I am compiling python from source code with clang compiler.

as follows result:

==5284==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 11776 byte(s) in 8 object(s) allocated from:
    #0 0x49ccbe (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x49ccbe)
    #1 0x4c86ca (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x4c86ca)

Indirect leak of 2000 byte(s) in 3 object(s) allocated from:
    #0 0x49ccbe (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x49ccbe)
    #1 0x4c86ca (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x4c86ca)

Indirect leak of 898 byte(s) in 86 object(s) allocated from:
    #0 0x49c9cb (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x49c9cb)
    #1 0x2ad0d5405679 (/lib/x86_64-linux-gnu/libc.so.6+0x89679)

Indirect leak of 520 byte(s) in 1 object(s) allocated from:
    #0 0x49c9cb (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x49c9cb)
    #1 0x4cb549 (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x4cb549)

Indirect leak of 178 byte(s) in 33 object(s) allocated from:
    #0 0x49c9cb (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x49c9cb)
    #1 0x4c14d4 (/home/y/Downloads/Python-3.5.2/Parser/pgen+0x4c14d4)

SUMMARY: AddressSanitizer: 15372 byte(s) leaked in 131 allocation(s).

Python version 3.5.2
Operating System: Linux y 3.13.0-24-generic  14.04 ubuntu
gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)