[Bug 1496924] Re: squid3 FTBFS due to bad libecap3 dependency and logical-not-parentheses warning

[Amos Jeffries]

FYI: The libecap older than 1.0.0 and Squid older than 3.5 are in a
lock-step dependency due to the libecap API and ABI being unstable in
those versions. Even if you can get it to build the call sequence to the
API is wrong at run-time. You get to pick libecap2 (0.2) + squid (3.3,
3.4) or libecap3 (1.0.1) + squid (3.5), but not a mix.

At this stage of Wily I suggest reverting to libecap2.

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Title:
  squid3 FTBFS due to bad libecap3 dependency and logical-not-
  parentheses warning

Status in squid3 package in Ubuntu:
  Triaged

Bug description:
  Currently squid3 FTBFS due to:

  1. libecap3-dev dependency, should be libecap2-dev [1]
  2. error due to a "logical-not-parentheses" warning

  
  ===== Build error #1
  checking for EXT_LIBECAP... no
  configure: error: Package requirements (libecap >= 0.2.0 libecap < 0.3) were not met:

  Requested 'libecap < 0.3' but version of eCAP is 1.0.1
  You may find new versions of eCAP at http://www.e-cap.org/
  =====

  ===== Build error #2
  ++ -DHAVE_CONFIG_H  -I../.. -I../../include -I../../lib -I../../src -I../../include  -isystem /usr
  /include/mit-krb5 -isystem /usr/include/mit-krb5  -I.  -I/usr/include/libxml2 -D_FORTIFY_SOURCE=2 -
  isystem /usr/include/mit-krb5 -isystem /usr/include/mit-krb5 -I/usr/include/libxml2 -Wall -Wpointer
  -arith -Wwrite-strings -Wcomments -Werror -pipe -D_REENTRANT -m64 -g -O2 -fPIE -fstack-protector-st
  rong -Wformat -Werror=format-security -std=c++0x -c -o lru/store_repl_lru.o lru/store_repl_lru.cc
  heap/store_repl_heap.cc: In function 'StoreEntry* heap_purgeNext(RemovalPurgeWalker*)':
  heap/store_repl_heap.cc:224:36: error: logical not is only applied to the left hand side of comparison [-Werror=logical-not-parentheses]
       if (!heap_nodes(heap->theHeap) > 0)
                                      ^
  ======

  
  [1] https://launchpad.net/ubuntu/+source/squid3/3.3.8-1ubuntu15/+build/7870177

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