[Bug libstdc++/35597] New: libstdc++ -ffunction-sections -fdata-sections disabled on AIX

[dje at gcc dot gnu dot org]

"-g" was added to CXXFLAGS in the GLIBCXX_CHECK_COMPILER_FEATURES configure
test in libstdc++.  This option causes G++ to warn: "-ffunction-sections may
affect debugging on some targets".  CXXFLAGS also includes "-Werror" causing
the warning to become an error.  This results in -ffunction-sections
-fdata-sections being disabled.

"-ffunction-sections -fdata-sections" works fine on AIX and should be used
because it generates functions as intended and improves performance by allowing
the AIX linker to reorder functions.


-- 
           Summary: libstdc++ -ffunction-sections -fdata-sections disabled
                    on AIX
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: major
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dje at gcc dot gnu dot org
 GCC build triplet: powerpc-ibm-aix5.3.0.0
  GCC host triplet: powerpc-ibm.aix5.3.0.0
GCC target triplet: powerpc-ibm-aix5.3.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35597