libgcc6 @6.5.0 does not build on PPC Mac OS X 10.4.11, Tiger, with G4 (7447A) because of "Bootstrap comparison failure!"

[ballapete (Peter "Pete" Dyballa)]

This failure is similar to #56922:

/usr/bin/make "DESTDIR=" "RPATH_ENVVAR=DYLD_LIBRARY_PATH" "TARGET_SUBDIR=ppc-apple-darwin8" "bindir=/opt/local/bin" "datadir=/opt/local/share/gcc-6" "exec_prefix=/opt/local" "includedir=/opt/local/include/gcc6" "datarootdir=/opt/local/share/gcc-6" "docdir=/opt/local/share/gcc-6/doc/" "infodir=/opt/local/share/info" "pdfdir=/opt/local/share/gcc-6/doc/" "htmldir=/opt/local/share/gcc-6/doc/" "libdir=/opt/local/lib/libgcc" "libexecdir=/opt/local/libexec" "lispdir=" "localstatedir=/opt/local/var" "mandir=/opt/local/share/man" "oldincludedir=/usr/include" "prefix=/opt/local" "sbindir=/opt/local/sbin" "sharedstatedir=/opt/local/com" "sysconfdir=/opt/local/etc" "tooldir=/opt/local/ppc-apple-darwin8" "build_tooldir=/opt/local/ppc-apple-darwin8" "target_alias=ppc-apple-darwin8" "AWK=gawk" "BISON=bison" "CC_FOR_BUILD=/opt/local/bin/gcc-apple-4.2 -arch ppc" "CFLAGS_FOR_BUILD=-pipe -Os" "CXX_FOR_BUILD=/opt/local/bin/g++-apple-4.2 -arch ppc -std=gnu++98" "EXPECT=expect" "FLEX=flex" "INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/install -c" "LDFLAGS_FOR_BUILD=-L/opt/local/lib -Wl,-headerpad_max_install_names" "LEX=flex" "M4=gm4" "MAKE=/usr/bin/make" "RUNTEST=runtest" "RUNTESTFLAGS=" "SED=/opt/local/bin/gsed" "SHELL=/bin/sh" "YACC=bison -y" "`echo 'ADAFLAGS=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "ADA_CFLAGS=" "AR_FLAGS=rc" "`echo 'BOOT_ADAFLAGS=-gnatpg' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "BOOT_CFLAGS=-g -O2 -mdynamic-no-pic" "BOOT_LDFLAGS=" "CFLAGS=-pipe -Os" "CXXFLAGS=-pipe -Os" "LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names" "LIBCFLAGS=-pipe -Os" "LIBCXXFLAGS=-pipe -Os -fno-implicit-templates" "STAGE1_CHECKING=--enable-checking=yes" "STAGE1_LANGUAGES=c,c++,lto" "GNATBIND=no" "GNATMAKE=no" "AR_FOR_TARGET=/opt/local/bin/ar" "AS_FOR_TARGET=/opt/local/bin/as" "CC_FOR_TARGET=/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build/./gcc/" "CFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "CPPFLAGS_FOR_TARGET=" "CXXFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "DLLTOOL_FOR_TARGET=dlltool" "FLAGS_FOR_TARGET=-B/opt/local/ppc-apple-darwin8/bin/ -B/opt/local/ppc-apple-darwin8/lib/ -isystem /opt/local/ppc-apple-darwin8/include -isystem /opt/local/ppc-apple-darwin8/sys-include" "GCJ_FOR_TARGET=" "GFORTRAN_FOR_TARGET=/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build/./gcc/gfortran -B/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build/./gcc/" "GOC_FOR_TARGET=" "GOCFLAGS_FOR_TARGET=-O2 -g" "LD_FOR_TARGET=/opt/local/bin/ld" "LIPO_FOR_TARGET=lipo" "LDFLAGS_FOR_TARGET=" "LIBCFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "LIBCXXFLAGS_FOR_TARGET=-g -O2 -pipe -Os -fno-implicit-templates" "NM_FOR_TARGET=/opt/local/bin/nm" "OBJDUMP_FOR_TARGET=/opt/local/bin/objdump" "OBJCOPY_FOR_TARGET=" "RANLIB_FOR_TARGET=/opt/local/bin/ranlib" "READELF_FOR_TARGET=readelf" "STRIP_FOR_TARGET=/opt/local/bin/strip" "WINDRES_FOR_TARGET=windres" "WINDMC_FOR_TARGET=windmc" "BUILD_CONFIG=bootstrap-debug" "`echo 'LANGUAGES=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "LEAN=:" "STAGE1_CFLAGS=-g -mdynamic-no-pic" "STAGE1_CXXFLAGS=-g -mdynamic-no-pic" "STAGE1_TFLAGS=" "STAGE2_CFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle" "STAGE2_CXXFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle" "STAGE2_TFLAGS=" "STAGE3_CFLAGS=-g -O2 -mdynamic-no-pic " "STAGE3_CXXFLAGS=-g -O2 -mdynamic-no-pic " "STAGE3_TFLAGS=" "STAGE4_CFLAGS=-g -O2 -mdynamic-no-pic " "STAGE4_CXXFLAGS=-g -O2 -mdynamic-no-pic " "STAGE4_TFLAGS=" "STAGEprofile_CFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle -fprofile-generate" "STAGEprofile_CXXFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle -fprofile-generate" "STAGEprofile_TFLAGS=" "STAGEfeedback_CFLAGS=-g -O2 -mdynamic-no-pic  -fprofile-use" "STAGEfeedback_CXXFLAGS=-g -O2 -mdynamic-no-pic  -fprofile-use" "STAGEfeedback_TFLAGS=" "CXX_FOR_TARGET= $r/./gcc/xg++ -B$r/./gcc/ -nostdinc++ `if test -f $r/ppc-apple-darwin8/libstdc++-v3/scripts/testsuite_flags; then /bin/sh $r/ppc-apple-darwin8/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$r/ppc-apple-darwin8/libstdc++-v3/src -L$r/ppc-apple-darwin8/libstdc++-v3/src/.libs -L$r/ppc-apple-darwin8/libstdc++-v3/libsupc++/.libs" "TFLAGS=" "CONFIG_SHELL=/bin/sh" "MAKEINFO=makeinfo --split-size=5000000 --split-size=5000000"  compare
make[2]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
make[3]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
rm -f stage_current
make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/host-darwin.o differs
make[2]: *** [compare] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
make: *** [bootstrap-lean] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/work/build" && /usr/bin/make -w bootstrap-lean 
Exit code: 2
Error: Failed to build libgcc6: command execution failed
DEBUG: Error code: CHILDSTATUS 288 2
DEBUG: Backtrace: command execution failed
    while executing
"system {*}$notty {*}$nice $fullcmdstring"
    invoked from within
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"$procedure $targetname"
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc6/main.log for details.
DEBUG: could not read "/opt/local/lib/libstdc++.6.dylib": no such file or directory
    while executing
"::file type $file"

The last failure report about "/opt/local/lib/libstdc++.6.dylib" does not seem to be true:

pete 239 /\ l -i /opt/local/lib/libstdc++*
53830503 lrwxrwxrwx 1 root admin      24  2. Nov 22:47 /opt/local/lib/libstdc++.6.dylib -> libgcc/libstdc++.6.dylib
pete 240 /\ l -Li /opt/local/lib/libstdc++
53830502 -rwxr-xr-x 1 root admin 1218356 13. Okt 00:42 /opt/local/lib/libstdc++.6.dylib

The symlink /opt/local/lib/libstdc++ was obviously created or updated at the begin of installing libgcc7. So it must have been present at time of building libgcc6.

[ballapete (Peter "Pete" Dyballa)]

Main.log from build on PowerPC 7447A

[kencu (Ken)]

Well -- as you know -- it built find on my G5 Tiger builder.

After several months of digging, I am still not quite sure what is wrong with your setup there, but I'm not too surprised this gcc6 build failed in exactly the same way as the previous gcc6 build. 56922.

Obviously something is causing your Bootstrap comparison failure!... I just have no idea at present what it is.

If you get too frustrated with this, you can feel free to download the gcc6 binary and move on.

[ballapete (Peter "Pete" Dyballa)]

Main.log from build of version 6.5.0_1 on PowerPC 7447A

[ballapete (Peter "Pete" Dyballa)]

Version 6.5.0_1 fails as well with:

/usr/bin/make "DESTDIR=" "RPATH_ENVVAR=DYLD_LIBRARY_PATH" "TARGET_SUBDIR=ppc-apple-darwin8" "bindir=/opt/local/bin" "datadir=/opt/local/share/gcc-6" "exec_prefix=/opt/local" "includedir=/opt/local/include/gcc6" "datarootdir=/opt/local/share/gcc-6" "docdir=/opt/local/share/gcc-6/doc/" "infodir=/opt/local/share/info" "pdfdir=/opt/local/share/gcc-6/doc/" "htmldir=/opt/local/share/gcc-6/doc/" "libdir=/opt/local/lib/gcc6" "libexecdir=/opt/local/libexec" "lispdir=" "localstatedir=/opt/local/var" "mandir=/opt/local/share/man" "oldincludedir=/usr/include" "prefix=/opt/local" "sbindir=/opt/local/sbin" "sharedstatedir=/opt/local/com" "sysconfdir=/opt/local/etc" "tooldir=/opt/local/ppc-apple-darwin8" "build_tooldir=/opt/local/ppc-apple-darwin8" "target_alias=ppc-apple-darwin8" "AWK=gawk" "BISON=bison" "CC_FOR_BUILD=/opt/local/bin/gcc-apple-4.2 -arch ppc" "CFLAGS_FOR_BUILD=-pipe -Os" "CXX_FOR_BUILD=/opt/local/bin/g++-apple-4.2 -arch ppc -std=gnu++98" "EXPECT=expect" "FLEX=flex" "INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/install -c" "LDFLAGS_FOR_BUILD=-L/opt/local/lib -Wl,-headerpad_max_install_names" "LEX=flex" "M4=gm4" "MAKE=/usr/bin/make" "RUNTEST=runtest" "RUNTESTFLAGS=" "SED=/opt/local/bin/gsed" "SHELL=/bin/sh" "YACC=bison -y" "`echo 'ADAFLAGS=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "ADA_CFLAGS=" "AR_FLAGS=rc" "`echo 'BOOT_ADAFLAGS=-gnatpg' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "BOOT_CFLAGS=-g -O2 -mdynamic-no-pic" "BOOT_LDFLAGS=" "CFLAGS=-pipe -Os" "CXXFLAGS=-pipe -Os" "LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names" "LIBCFLAGS=-pipe -Os" "LIBCXXFLAGS=-pipe -Os -fno-implicit-templates" "STAGE1_CHECKING=--enable-checking=yes" "STAGE1_LANGUAGES=c,c++,lto" "GNATBIND=no" "GNATMAKE=no" "AR_FOR_TARGET=/opt/local/bin/ar" "AS_FOR_TARGET=/opt/local/bin/as" "CC_FOR_TARGET=/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build/./gcc/" "CFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "CPPFLAGS_FOR_TARGET=" "CXXFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "DLLTOOL_FOR_TARGET=dlltool" "FLAGS_FOR_TARGET=-B/opt/local/ppc-apple-darwin8/bin/ -B/opt/local/ppc-apple-darwin8/lib/ -isystem /opt/local/ppc-apple-darwin8/include -isystem /opt/local/ppc-apple-darwin8/sys-include" "GCJ_FOR_TARGET=" "GFORTRAN_FOR_TARGET=/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build/./gcc/gfortran -B/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build/./gcc/" "GOC_FOR_TARGET=" "GOCFLAGS_FOR_TARGET=-O2 -g" "LD_FOR_TARGET=/opt/local/bin/ld" "LIPO_FOR_TARGET=lipo" "LDFLAGS_FOR_TARGET=" "LIBCFLAGS_FOR_TARGET=-g -O2 -pipe -Os" "LIBCXXFLAGS_FOR_TARGET=-g -O2 -pipe -Os -fno-implicit-templates" "NM_FOR_TARGET=/opt/local/bin/nm" "OBJDUMP_FOR_TARGET=/opt/local/bin/objdump" "OBJCOPY_FOR_TARGET=" "RANLIB_FOR_TARGET=/opt/local/bin/ranlib" "READELF_FOR_TARGET=readelf" "STRIP_FOR_TARGET=/opt/local/bin/strip" "WINDRES_FOR_TARGET=windres" "WINDMC_FOR_TARGET=windmc" "BUILD_CONFIG=bootstrap-debug" "`echo 'LANGUAGES=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "LEAN=:" "STAGE1_CFLAGS=-g -mdynamic-no-pic" "STAGE1_CXXFLAGS=-g -mdynamic-no-pic" "STAGE1_TFLAGS=" "STAGE2_CFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle" "STAGE2_CXXFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle" "STAGE2_TFLAGS=" "STAGE3_CFLAGS=-g -O2 -mdynamic-no-pic " "STAGE3_CXXFLAGS=-g -O2 -mdynamic-no-pic " "STAGE3_TFLAGS=" "STAGE4_CFLAGS=-g -O2 -mdynamic-no-pic " "STAGE4_CXXFLAGS=-g -O2 -mdynamic-no-pic " "STAGE4_TFLAGS=" "STAGEprofile_CFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle -fprofile-generate" "STAGEprofile_CXXFLAGS=-g -O2 -mdynamic-no-pic  -gtoggle -fprofile-generate" "STAGEprofile_TFLAGS=" "STAGEfeedback_CFLAGS=-g -O2 -mdynamic-no-pic  -fprofile-use" "STAGEfeedback_CXXFLAGS=-g -O2 -mdynamic-no-pic  -fprofile-use" "STAGEfeedback_TFLAGS=" "CXX_FOR_TARGET= $r/./gcc/xg++ -B$r/./gcc/ -nostdinc++ `if test -f $r/ppc-apple-darwin8/libstdc++-v3/scripts/testsuite_flags; then /bin/sh $r/ppc-apple-darwin8/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$r/ppc-apple-darwin8/libstdc++-v3/src -L$r/ppc-apple-darwin8/libstdc++-v3/src/.libs -L$r/ppc-apple-darwin8/libstdc++-v3/libsupc++/.libs" "TFLAGS=" "CONFIG_SHELL=/bin/sh" "MAKEINFO=makeinfo --split-size=5000000 --split-size=5000000"  compare
make[2]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
make[3]: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
rm -f stage_current
make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1obj-checksum.o differs
warning: gcc/cc1objplus-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/host-darwin.o differs
make[2]: *** [compare] Error 1
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
make: *** [bootstrap-lean] Error 2
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/work/build" && /usr/bin/make -w bootstrap-lean 
Exit code: 2
Error: Failed to build gcc6: command execution failed

now reporting

DEBUG: Error code: CHILDSTATUS 13925 2
DEBUG: Backtrace: command execution failed
    while executing
"system {*}$notty {*}$nice $fullcmdstring"
    invoked from within
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"$procedure $targetname"
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_lil.fr.rsync.macports.org_release_tarballs_ports_lang_gcc6/gcc6/main.log for details.
DEBUG: Failed to locate 'lbzip2' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin' or at its MacPorts configuration time location, did you move it?

Lbzip2 does not exist here.

[kencu (Ken)]

I have something else for you to try if you still see this -- add this to the Portfile at an appropriate spot:

configure.args-append --with-dwarf2

When trying to build a standalone, no-MacPorts, gcc5 installer on Tiger, gcc5 simply would not ever finish a build unless I added this (or disabled the comparison stage). Using bootstrap-debug did not fix the build there. But this did.

Exactly why this worked and bootstrap-debug did not work is under assessment, as bootstrap-debug is meant to strip out the debug symbols before comparison, but it might be worth a try for you.

I suspect this might also fix the random "Bootstrap comparison failure!" errors we have seen (sometimes!) on gcc46 and up on these older systems. Perhaps it is some combination of the initial build compiler and linker defaulting to various debug settings and the stage 1,2,3 compilers defaulting in some other fashion. It's clearly complicated.

[evanmiller (Evan Miller)]

FWIW libgcc6 @6.5.0_4 builds just fine on a G3 running 10.4.11 here. I did not add the suggested --with-dwarf2 flag.

[ballapete (Peter "Pete" Dyballa)]

The time of this compiler is over. It is possible that missing disk space caused the failure. It can certainly be closed, except there are objections. Then I'll rebuild…