[Bug target/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

["dougmencken at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

Douglas Mencken <dougmencken at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #6 from Douglas Mencken <dougmencken at gmail dot com> 2011-10-14 16:29:55 UTC ---
Bootstrapping without --disble-checking gave me on stage3 (libjava):

libtool: compile:  /root/build-farm/_gcc_bootstrap/./gcc/xgcc -shared-libgcc
-B/root/build-farm/_gcc_bootstrap/./gcc -nostdinc++
-L/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libstdc++-v3/src
-L/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libstdc++-v3/src/.libs
-B/usr/powerpc-gnu-linux-uclibc/bin/ -B/usr/powerpc-gnu-linux-uclibc/lib/
-isystem /usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc-v4.7-20111008.sourcedir/libjava -I./include -I./gcj
-I../../../gcc-v4.7-20111008.sourcedir/libjava -Iinclude
-I../../../gcc-v4.7-20111008.sourcedir/libjava/include
-I../../../gcc-v4.7-20111008.sourcedir/libjava/classpath/include
-Iclasspath/include
-I../../../gcc-v4.7-20111008.sourcedir/libjava/classpath/native/fdlibm
-I../../../gcc-v4.7-20111008.sourcedir/libjava/../boehm-gc/include
-I../boehm-gc/include -I../../../gcc-v4.7-20111008.sourcedir/libjava/libltdl
-I../../../gcc-v4.7-20111008.sourcedir/libjava/libltdl
-I../../../gcc-v4.7-20111008.sourcedir/libjava/.././libjava/../libgcc
-I../../../gcc-v4.7-20111008.sourcedir/libjava/../libffi/include
-I../libffi/include -fno-rtti -fnon-call-exceptions -fdollars-in-identifiers
-Wswitch-enum -D_FILE_OFFSET_BITS=64 -Wextra -Wall -D_GNU_SOURCE
-DPREFIX=\"/usr\" -DTOOLEXECLIBDIR=\"/usr/lib\" -DJAVA_HOME=\"/usr\"
-DBOOT_CLASS_PATH=\"/usr/share/java/libgcj-4.7.0.jar\"
-DJAVA_EXT_DIRS=\"/usr/share/java/ext\"
-DGCJ_ENDORSED_DIRS=\"/usr/share/java/gcj-endorsed\"
-DGCJ_VERSIONED_LIBDIR=\"/usr/lib/gcj-4.7.0-13\" -DPATH_SEPARATOR=\":\"
-DECJ_JAR_FILE=\"/usr/share/java/ecj.jar\"
-DLIBGCJ_DEFAULT_DATABASE=\"/usr/lib/gcj-4.7.0-13/classmap.db\"
-DLIBGCJ_DEFAULT_DATABASE_PATH_TAIL=\"gcj-4.7.0-13/classmap.db\"
-fno-omit-frame-pointer -O3 -D_GNU_SOURCE -MT prims.lo -MD -MP -MF
.deps/prims.Tpo -c ../../../gcc-v4.7-20111008.sourcedir/libjava/prims.cc  -fPIC
-DPIC -o .libs/prims.o
In file included from
../../../gcc-v4.7-20111008.sourcedir/libjava/prims.cc:28:0:
../../../gcc-v4.7-20111008.sourcedir/libjava/include/java-interp.h:40:17: fatal
error: ffi.h: No such file or directory
compilation terminated.
make[3]: *** [prims.lo] Error 1

Of course, I do have ffi.h inside /usr/lib/libffi-3.0.10rc9/include/.

Now I believe it's not an 4.7 regression, nor it is bound with -O3, so I'm
closing this bug as RESOLVED INVALID. I hope that I can develop it further and
produce a valid bug report on that issue.