[MacPorts] #58443: :error:build gcc6 cannot be built whilst libunwind-headers is installed.

[MacPorts]

#58443: :error:build gcc6 cannot be built whilst libunwind-headers is installed.
--------------------+----------------------------
 Reporter:  dbl001  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:  MacPorts 2.6.0
Component:  ports   |    Version:  2.5.4
 Keywords:  gcc6    |       Port:
--------------------+----------------------------
 {{{
 $ sudo port upgrade outdated
 Password:
 --->  Computing dependencies for isl
 --->  Fetching archive for isl
 --->  Attempting to fetch isl-0.21_0.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/isl
 --->  Attempting to fetch isl-0.21_0.darwin_15.x86_64.tbz2.rmd160 from
 https://packages.macports.org/isl
 --->  Installing isl @0.21_0
 --->  Cleaning isl
 --->  Computing dependencies for isl
 --->  Deactivating isl @0.20_0
 --->  Cleaning isl
 --->  Activating isl @0.21_0
 --->  Cleaning isl
 --->  Computing dependencies for cloog
 --->  Fetching archive for cloog
 --->  Attempting to fetch cloog-0.18.4_3.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/cloog
 --->  Attempting to fetch cloog-0.18.4_3.darwin_15.x86_64.tbz2.rmd160 from
 https://packages.macports.org/cloog
 --->  Installing cloog @0.18.4_3
 --->  Cleaning cloog
 --->  Computing dependencies for cloog
 --->  Deactivating cloog @0.18.4_2
 --->  Cleaning cloog
 --->  Activating cloog @0.18.4_3
 --->  Cleaning cloog
 --->  Computing dependencies for libgcc9
 --->  Fetching archive for libgcc9
 --->  Attempting to fetch libgcc9-9.1.0_1.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/libgcc9
 --->  Attempting to fetch libgcc9-9.1.0_1.darwin_15.x86_64.tbz2.rmd160
 from https://packages.macports.org/libgcc9
 --->  Installing libgcc9 @9.1.0_1
 --->  Deactivating libgcc8 @8.3.0_0
 --->  Activating libgcc9 @9.1.0_1
 --->  Cleaning libgcc9
 --->  Computing dependencies for libgcc8
 --->  Fetching archive for libgcc8
 --->  Attempting to fetch libgcc8-8.3.0_4.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/libgcc8
 --->  Attempting to fetch libgcc8-8.3.0_4.darwin_15.x86_64.tbz2.rmd160
 from https://packages.macports.org/libgcc8
 --->  Installing libgcc8 @8.3.0_4
 --->  Cleaning libgcc8
 --->  Computing dependencies for libgcc8
 --->  Activating libgcc8 @8.3.0_4
 --->  Cleaning libgcc8
 --->  Computing dependencies for libgcc7
 --->  Fetching archive for libgcc7
 --->  Attempting to fetch libgcc7-7.4.0_3.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/libgcc7
 --->  Attempting to fetch libgcc7-7.4.0_3.darwin_15.x86_64.tbz2.rmd160
 from https://packages.macports.org/libgcc7
 --->  Installing libgcc7 @7.4.0_3
 --->  Cleaning libgcc7
 --->  Computing dependencies for libgcc7
 --->  Deactivating libgcc7 @7.4.0_0
 --->  Cleaning libgcc7
 --->  Activating libgcc7 @7.4.0_3
 --->  Cleaning libgcc7
 --->  Computing dependencies for libgcc6
 --->  Fetching archive for libgcc6
 --->  Attempting to fetch libgcc6-6.5.0_4.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/libgcc6
 --->  Attempting to fetch libgcc6-6.5.0_4.darwin_15.x86_64.tbz2.rmd160
 from https://packages.macports.org/libgcc6
 --->  Installing libgcc6 @6.5.0_4
 --->  Cleaning libgcc6
 --->  Computing dependencies for libgcc6
 --->  Deactivating libgcc6 @6.5.0_1
 --->  Cleaning libgcc6
 --->  Activating libgcc6 @6.5.0_4
 --->  Cleaning libgcc6
 --->  Computing dependencies for gcc6
 --->  Fetching archive for gcc6
 --->  Attempting to fetch gcc6-6.5.0_4.darwin_15.x86_64.tbz2 from
 https://packages.macports.org/gcc6
 --->  Attempting to fetch gcc6-6.5.0_4.darwin_15.x86_64.tbz2 from
 http://sea.us.packages.macports.org/macports/packages/gcc6
 --->  Attempting to fetch gcc6-6.5.0_4.darwin_15.x86_64.tbz2 from
 http://aus.us.packages.macports.org/macports/packages/gcc6
 --->  Fetching distfiles for gcc6
 --->  Verifying checksums for gcc6
 --->  Extracting gcc6
 --->  Applying patches to gcc6
 --->  Configuring gcc6
 --->  Building gcc6
 Error: gcc6 cannot be built whilst libunwind-headers is installed.
 Error: Failed to build gcc6: build error
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 MacBook-Pro:diagram davidlaxer$ vi
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/main.log
 MacBook-Pro:diagram davidlaxer$ cp !$ ~
 cp
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/main.log
 ~
 MacBook-Pro:diagram davidlaxer$

 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/58443>
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