[MacPorts] #60740: perl5.28: fails on Tiger Intel : ld: library not found for -lssp_nonshared

[MacPorts]

#60740: perl5.28: fails on Tiger Intel : ld: library not found for -lssp_nonshared
--------------------------------+----------------------
  Reporter:  kencu              |      Owner:  mojca
      Type:  defect             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:
Resolution:                     |   Keywords:  Tiger
      Port:  perl5.28 perl5.30  |
--------------------------------+----------------------

Comment (by kencu):

 No, I built apple-gcc4.2 with apple-gcc4.2+bootstrap.

 I think I figured this out. On Intel systems only, {{{perl}}} tests to see
 if the compiler accepts the {{{-fstack-protector}}} flag during configure:
 {{{
         # on x86_64 (at least) we require an extra library (libssp) in the
         # link command line. This library is not named, so I infer that it
 is
         # an implementation detail that may change. Hence the safest
 approach
         # is to add the flag to the flags passed to the compiler at link
 time,
         # as that way the compiler can do the right implementation
 dependant
         # thing. (NWC)
         case "$osname" in
         amigaos) ;; # -fstack-protector builds but doesn't work
         *)      case "$gccversion" in
                 ?*)     set stack-protector-strong -fstack-protector-
 strong
                         eval $checkccflag
                         case "$dflt" in
                         *-fstack-protector-strong*) ;; # It got added.
                         *) # Try the plain/older -fstack-protector.
                            set stack-protector -fstack-protector
                            eval $checkccflag
                            ;;
                         esac
                         ;;
                 esac
                 ;;
         esac
 }}}

 apple-gcc4.2 happily accepts that flag without error:
 {{{
 /opt/local/bin/gcc-apple-4.2 -c -fstack-protector hello.c
 }}}

 but if you actually try to link something, it fails.
 {{{
 $ /opt/local/bin/gcc-apple-4.2 -fstack-protector hello.c
 ld: library not found for -lssp_nonshared
 collect2: ld returned 1 exit status
 }}}

 if somehow there is a reference to -L/opt/local/lib thrown in there, which
 there often is, and if there happens to be a {{{libssp_nonshared}}} in
 /opt/local/lib courtesy of some other libgcc, then it will work, by
 accident.

 So -- apple-gcc4.2 should reject the flag, but it doesn't.

 We're like the {{{amigaos}}} case in {{{perl}}}'s configure script.

 What we should do is strip {{{-fstack-protector-*}}} out of the configure
 script, at least systems where MacPorts defaults to a gcc < 4.9, like this
 patch you found. <https://patchwork.openembedded.org/patch/134607/>

-- 
Ticket URL: <https://trac.macports.org/ticket/60740#comment:8>
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