[MacPorts] #37795: nzbget: configure fails with clang: error: "libpar2 library not found" (was: nzbget still requires gcc)

[MacPorts]

#37795: nzbget: configure fails with clang: error: "libpar2 library not found"
-------------------------+--------------------------
  Reporter:  dinge345@…  |      Owner:  ryandesign@…
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.1.2
Resolution:              |   Keywords:
      Port:  nzbget      |
-------------------------+--------------------------
Changes (by ryandesign@…):

 * status:  new => assigned
 * owner:  macports-tickets@… => ryandesign@…
 * cc: cal@… (added)


Comment:

 Note that llvm-gcc is not gcc.

 The log says:
 {{{
 checking libpar2/libpar2.h usability... no
 checking libpar2/libpar2.h presence... yes
 configure: WARNING: libpar2/libpar2.h: present but cannot be compiled
 configure: WARNING: libpar2/libpar2.h:     check for missing prerequisite
 headers?
 configure: WARNING: libpar2/libpar2.h: see the Autoconf documentation
 configure: WARNING: libpar2/libpar2.h:     section "Present But Cannot Be
 Compiled"
 configure: WARNING: libpar2/libpar2.h: proceeding with the preprocessor's
 result
 configure: WARNING: libpar2/libpar2.h: in the future, the compiler will
 take precedence
 configure: WARNING:     ## ------------------------------------------- ##
 configure: WARNING:     ## Report this to hugbug at users.sourceforge.net ##
 configure: WARNING:     ## ------------------------------------------- ##
 checking for libpar2/libpar2.h... yes
 checking for library containing _ZN12Par2RepairerC1Ev... -lpar2
 checking for libpar2 linking... no
 configure: error: "libpar2 library not found"
 }}}

 The config.log shows why this is:
 {{{
 /opt/local/include/libpar2/par2fileformat.h:87:25: error: flexible array
 member 'entries' of non-POD element type 'FILEVERIFICATIONENTRY []'
   FILEVERIFICATIONENTRY entries[];
                         ^
 }}}

 So this is #31667, a bug in libpar2.

 nzbget had been blacklist clang for this reason since r86546. This was
 inexplicably removed in r97802. Since I still get the same problem as you
 do, I've put it back in r102073.

-- 
Ticket URL: <https://trac.macports.org/ticket/37795#comment:1>
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