https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66054
Bug ID: 66054
Summary: bootstrap comparison failure with --enable-host-shared
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: build
Severity: minor
Priority: P3
Component: jit
Assignee: unassigned at gcc dot gnu.org
Reporter: aldot at gcc dot gnu.org
CC: dmalcolm at gcc dot gnu.org
Target Milestone: ---
Bootstrapping with --enable-host-shared fails stage2/3 comparison for all but
crt files.
Comparing stages 2 and 3
warning: gcc/cc1obj-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1objplus-checksum.o differs
Bootstrap comparison failure!
gcc/builtins.o differs
[snip gcc/{,*/}*.o libbacktrace/{,.libs/}*.o libcpp/*.o libdecnumber/*.o
libiberty/*.o lto-plugin/.libs/*.o zlib/*.o]
make[2]: *** [compare] Error 1
make[2]: Leaving directory `..../obj.x86_64/gcc-6.0.orig'
make[1]: *** [stage3-bubble] Error 2
for me when i
../../src/gcc-6.0.orig/configure \
-v \
--enable-languages=c,lto,fortran,c++,go,objc,obj-c++,jit \
LD="ld" \
CFLAGS="-g -O2" \
CXXFLAGS="-g -O2" \
BOOT_CFLAGS="-g -O2" \
BOOT_CXXFLAGS="-g -O2" \
CFLAGS_FOR_TARGET="-g -O2" \
CXXFLAGS_FOR_TARGET="-g -O2" \
--prefix=/opt/x86_64/gcc-6.0.orig// \
--enable-shared \
--without-system-zlib \
--enable-nls \
--without-included-gettext \
--enable-threads=posix \
--enable-__cxa_atexit \
--enable-libstdcxx-allocator=mt \
--enable-clocale=gnu \
--enable-libstdcxx-debug \
--enable-mpfr \
--disable-werror \
--enable-debug \
--with-isl=/opt/x86_64/isl \
-C \
--disable-intermodule \
--enable-multilib \
--disable-libstdcxx-pch \
--enable-bootstrap \
--enable-host-shared \
--enable-checking=yes \
--with-cpu=native \
--with-tune=native \
--enable-plugin
ISTM that nowadays at least some libraries already have pic/*.o (libiberty
comes to mind)
