Fix lvm2 for musl libc

Fix lvm2 for musl libc

[cat]

Hi! These patches fix lvm2 for musl.

freopen is used in place of the assignment operator since the standard streams are const in musl. https://www.gnu.org/software/libc/manual/html_node/Standard-Streams.html (it says on this page that the standard streams may not be modifiable on other systems).

The mallinfo patch is just copied from Alpine Linux and it makes _allocate_memory not do anything if glibc isn't used. I don't know if that is fine, and if not I'd probably need some help properly making the function posix compliant, thanks. 

-- 
 Sent with Tutanota, enjoy secure & ad-free emails. 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lvm2-2.03.14-freopen_n2.patch
Type: text/x-patch
Size: 575 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/lvm-devel/attachments/20220621/3594a4a7/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lvm2-2.03.14-r1-fopen-to-freopen.patch
Type: text/x-patch
Size: 1306 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/lvm-devel/attachments/20220621/3594a4a7/attachment-0001.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lvm2-2.03.14-r1-mallinfo.patch
Type: text/x-patch
Size: 665 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/lvm-devel/attachments/20220621/3594a4a7/attachment-0002.bin>

Fix lvm2 for musl libc

[Zdenek Kabelac]

Dne 21. 06. 22 v 21:21 cat at catcream.org napsal(a):
> Hi! These patches fix lvm2 for musl.
>
> freopen is used in place of the assignment operator since the standard streams are const in musl. https://www.gnu.org/software/libc/manual/html_node/Standard-Streams.html (it says on this page that the standard streams may not be modifiable on other systems).
>
> The mallinfo patch is just copied from Alpine Linux and it makes _allocate_memory not do anything if glibc isn't used. I don't know if that is fine, and if not I'd probably need some help properly making the function posix compliant, thanks.
>

Hi


Patch for malinfo seems fine, however those? 'freopen()' patches need ome more 
thinking.

We are doing these actions to limit allocation of memory for internal glibc? 
stream buffers.

I'll see what can be done for muslC side - maybe just some ifdef,...


Regards


Zdenek