Bug#986539: libre-dev depends on zlib1g-dev

[Nicholas Brown]

Package: libre-dev
Version: 1.1.0-1
Severity: important
Tags: patch

Specifically re_crc32.h includes zlib.h

Discovered while trying to build https://github.com/alfredh/repcpd

```
[   68s] make[1]: Entering directory '/usr/src/packages/BUILD'
[   68s]   CC [M]  build-x86_64/modules/announce/announce.o
[   68s] In file included from /usr/include/re/re.h:27,
[   68s]                  from modules/announce/announce.c:7:
[   68s] /usr/include/re/re_crc32.h:9:10: fatal error: zlib.h: No such file
or directory
[   68s]     9 | #include <zlib.h>
[   68s]       |          ^~~~~~~~
[   68s] compilation terminated.
```

I opened a merge request to fix this, but appears it was removed as merge
requests were later disabled on the repo. I was notified of this removal. (
https://salsa.debian.org/pkg-voip-team/libre/-/merge_requests/1)

My proposed fix is:
https://salsa.debian.org/nickbroon/libre/-/commit/438b34da2f2147b4db6b2521d580598e226cd29e

diff --git a/debian/control b/debian/control
index 6c0f773..1b02b64 100644
--- a/debian/control
+++ b/debian/control
@@ -55,6 +55,7 @@ Multi-Arch: same
 Section: libdevel
 Depends:
  libre0 (= ${binary:Version}),
+ zlib1g-dev,
  ${misc:Depends},
  ${shlibs:Depends},
 Description: generic library for real-time communications (development
files)
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