[MacPorts] #28512: atlas wont compile

[MacPorts]

#28512: atlas wont compile
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 Reporter:  macports@…              |       Owner:  jameskyle@…           
     Type:  defect                  |      Status:  new                   
 Priority:  Normal                  |   Milestone:                        
Component:  ports                   |     Version:  1.9.99                
 Keywords:                          |        Port:  atlas                 
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Comment(by ryandesign@…):

 Replying to [comment:58 vince@…]:
 > You appear to have CFLAGS and CXXFLAGS set for G4 (ppc) not G5 (ppc64).
 > Please check your CFLAGS, CXXFLAGS and F90FLAGS.

 CFLAGS, CXXFLAGS, F90FLAGS, etc. are not environment variables that the
 user has direct influence over in MacPorts. Certainly, if the user has set
 these in their shell environment, MacPorts will ignore them.

 Is your concern the fact that the string "-m32" is appearing in these
 flags? If so, I believe that is the result of "build_arch" being set to
 "ppc" in macports.conf. "ppc" is in fact the default value of "build_arch"
 on all PowerPC systems. PowerPC G5 users could certainly change
 "build_arch" to "ppc64" if they want 64-bit builds, but since that is not
 the default on any Mac, that configuration is not well-tested.

 I see occurrences of "-m64" in the build log as well, and that mix of
 32-bit and 64-bit is probably the cause of the relevant error message from
 the log:

 {{{
 :info:build ld warning: in ATL_dmvnk_b0.o, file is not of required
 architecture
 :info:build ld warning: in ATL_dmvnk_b1.o, file is not of required
 architecture
 :info:build Undefined symbols:
 :info:build   "_ATL_UGEMVNK", referenced from:
 :info:build       _ATL_UGEMVNK$non_lazy_ptr in ATL_dgemvN.o
 :info:build   "_ATL_UGEMVNK_b0", referenced from:
 :info:build       _ATL_dgemvN in ATL_dgemvN.o
 :info:build       _ATL_UGEMVNK_b0$non_lazy_ptr in ATL_dgemvN.o
 :info:build ld: symbol(s) not found
 }}}

 Atlas should not be trying to build itself 64-bit on PowerPC G5 systems
 unless "build_arch" is "ppc64" in macports.conf. Atlas apparently decided
 on its own that it wanted to build 64-bit, which is a bug that should be
 fixed.

 Finally, this ticket is enormous, and it is troubling that people keep
 adding new and unrelated issues to this ticket. First there was the
 "Undefined symbols: _ATL_DecAtomicCount" error which all users
 experienced, which was resolved. Then there was the build error on all
 PowerPC systems, which was resolved. Now there is a new issue only
 affecting 64-bit PowerPC systems. These should have been three separate
 tickets.

-- 
Ticket URL: <https://trac.macports.org/ticket/28512#comment:61>
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