[MacPorts] #72421: gcc12 does not build on MacOS 15.4.1 with updated macports 2.10.5 on Apple M1 Pro

[MacPorts]

#72421: gcc12 does not build on MacOS 15.4.1 with updated macports 2.10.5 on Apple
M1 Pro
--------------------------+--------------------
 Reporter:  markblackman  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:                |       Port:  gcc12
--------------------------+--------------------
 error seen in log is


 {{{
 configure:3792: checking for suffix of object files
 configure:3814:
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc12/gcc12/work/build/./gcc/xgcc
 -B/opt/local/var/macports/build/_opt_local_var_macpo
 rts_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc12/gcc12/work/build/./gcc/
 -B/opt/local/aarch64-apple-darwin24/bin/ -B/opt/local/aarch64-apple-
 darwin24/lib/ -isystem /opt/local/aarch64-apple-darwin
 24/include -isystem /opt/local/aarch64-apple-darwin24/sys-include   -fno-
 checking -c -g -O2 -pipe -Os
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk  conftest.c
 >&5
 clang: error: no input files
 configure:3818: $? = 2
 configure: failed program was:
 | /* confdefs.h */
 | #define PACKAGE_NAME "GNU C Runtime Library"
 | #define PACKAGE_TARNAME "libgcc"
 | #define PACKAGE_VERSION "1.0"
 | #define PACKAGE_STRING "GNU C Runtime Library 1.0"
 | #define PACKAGE_BUGREPORT ""
 | #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"
 | /* end confdefs.h.  */
 |
 | int
 | main ()
 | {
 |
 |   ;
 |   return 0;
 | }
 configure:3832: error: in
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc12/gcc12/work/build/aarch64
 -apple-darwin24/libgcc':
 configure:3834: error: cannot compute suffix of object files: cannot
 compile

 }}}

 This looks like the problem seen in gcc14 and fixed in gcc14 here
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116809 and referenced here
 https://trac.macports.org/ticket/70866

 Does this imply we have to wait for a gcc12 update from the gcc
 maintainers?

-- 
Ticket URL: <https://trac.macports.org/ticket/72421>
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