http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47225
Summary: [4.6.0 regression]: cross-compile fails while
configuring libgcc with "xgcc: fatal error:
-fuse-linker-plugin, but liblto_plugin.so not found"
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: lto
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: john.tyt...@aaug.net
Cross compile 4.6.0 trunk r168599, target arm-unknown-eabi configured as:
configure --target=arm-unknown-eabi
--prefix=/home/joty/projects/gccsdk/riscos7/cross
--with-gmp=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--with-mpfr=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--with-mpc=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--with-system-zlib
--with-ppl=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--with-host-libstdcxx=-Wl,-lstdc++
--with-cloog=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--enable-lto
--with-libelf=/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/installed-libs-for-cross-gcc
--disable-threads --disable-multilib --disable-shared --with-newlib
--enable-interwork --disable-nls --disable-libquadmath
--enable-checking=release --enable-languages=c,c++
fails while configuring arm-unknown-eabi/libgcc with:
--8<--
configure:3020:
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/./gcc/xgcc
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/./gcc/
-nostdinc
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/newlib/
-isystem
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/newlib/targ-include
-isystem
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/srcdir/gcc/newlib/libc/include
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/libgloss/arm
-L/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/libgloss/libnosys
-L/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/srcdir/gcc/libgloss/arm
-B/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/bin/
-B/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/lib/ -isystem
/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/include -isystem
/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/sys-include -o
conftest -g -O2 conftest.c >&5
xgcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found
compilation terminated.
configure:3023: $? = 1
configure:3211: checking for suffix of object files
configure:3233:
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/./gcc/xgcc
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/./gcc/
-nostdinc
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/newlib/
-isystem
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/newlib/targ-include
-isystem
/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/srcdir/gcc/newlib/libc/include
-B/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/libgloss/arm
-L/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/libgloss/libnosys
-L/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/srcdir/gcc/libgloss/arm
-B/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/bin/
-B/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/lib/ -isystem
/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/include -isystem
/home/joty/projects/gccsdk/riscos7/cross/arm-unknown-eabi/sys-include -c -g
-O2 conftest.c >&5
xgcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found
compilation terminated.
configure:3237: $? = 1
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:3251: error: in
`/home/joty/projects/gccsdk/gccsdk_svn7/gcc4/builddir/cross-gcc/arm-unknown-eabi/libgcc':
configure:3254: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
--8<--
There is indeed no liblto_plugin.so found in my build tree.
With r168592 I had the last confirmed successful build.
