Github user jablko commented on the issue:
https://github.com/apache/trafficserver/pull/1392
Would this latest change work? How does traffic_layout --features get used?
```Diff
print_feature("BUILD_PERSON", BUILD_PERSON, json);
print_feature("BUILD_GROUP", BUILD_GROUP, json);
print_feature("BUILD_NUMBER", BUILD_NUMBER, json);
- print_feature("TS_HAS_LIBZ", TS_HAS_LIBZ, json);
- print_feature("TS_HAS_LZMA", TS_HAS_LZMA, json);
+#ifdef HAVE_ZLIB_H
+ print_feature("HAVE_ZLIB_H", HAVE_ZLIB_H, json);
+#endif
+#ifdef HAVE_LZMA_H
+ print_feature("HAVE_LZMA_H", HAVE_LZMA_H, json);
+#endif
print_feature("TS_HAS_JEMALLOC", TS_HAS_JEMALLOC, json);
print_feature("TS_HAS_TCMALLOC", TS_HAS_TCMALLOC, json);
print_feature("TS_HAS_IN6_IS_ADDR_UNSPECIFIED",
TS_HAS_IN6_IS_ADDR_UNSPECIFIE
D, json);
```
Fixing zlibh and lzmah would be very easy! I'd just sooner get rid of them
... What irritates me is that they reimplement something that already works
automatically and more standardly: HAVE_ZLIB_H and HAVE_LZMA_H.
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