Bootstrapping current mainline fails when configuring libjava/libltdl on both Tru64 UNIX V4.0F and V5.1B with the following error:
configure: configuring in libltdl configure: running /bin/ksh '/vol/gnu/src/gcc/gcc-dist/libjava/libltdl/configure' --prefix=/vol/gcc '--cache-file=./config.cache' '--host=alpha-dec-osf4.0f' '--build=alpha-dec-osf4.0f' '--enable-multilib' '--prefix=/vol/gcc' '--with-local-prefix=/vol/gcc' '--disable-nls' '--disable-libmudflap' '--with-gcc-version-trigger=/vol/gnu/src/gcc/gcc-dist/gcc/version.c' '--enable-languages=c,c++,java,objc' '--program-transform-name=s,y,y,' '--srcdir=/vol/gnu/src/gcc/gcc-dist/libjava' '--with-target-subdir=alpha-dec-osf4.0f' 'CPPFLAGS=-O2 -g -O2 -mieee' 'build_alias=alpha-dec-osf4.0f' 'host_alias=alpha-dec-osf4.0f' 'target_alias=alpha-dec-osf4.0f' --enable-ltdl-convenience --with-auxdir=/vol/gnu/src/gcc/gcc-dist --cache-file=.././config.cache --srcdir=/vol/gnu/src/gcc/gcc-dist/libjava/libltdl configure: loading cache .././config.cache configure: error: `CPPFLAGS' has changed since the previous run: configure: former value: -O2 -g -O2 -mieee configure: current value: -O2 -g -O2 -mieee configure: error: changes in the environment can compromise the build configure: error: run `make distclean' and/or `rm .././config.cache' and start over configure: error: /bin/ksh '/vol/gnu/src/gcc/gcc-dist/libjava/libltdl/configure' failed for libltdl make[1]: *** [configure-target-libjava] Error 1 This problem exists at least since 20040910. I have not yet been able to figure out where that additional blank comes from. Environment: System: OSF1 rimsky V4.0 1229 alpha Machine: alpha host: alpha-dec-osf4.0f build: alpha-dec-osf4.0f target: alpha-dec-osf4.0f configured with: /vol/gnu/src/gcc/gcc-dist/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls --host alpha-dec-osf4.0f --build alpha-dec-osf4.0f --target alpha-dec-osf4.0f --disable-libmudflap How-To-Repeat: Bootstrap on Tru64 UNIX as above. -- Summary: libjava bootstrap failure on Tru64 UNIX: CPPFLAGS changed in libltdl Product: gcc Version: 0.0 Status: UNCONFIRMED Severity: critical Priority: P2 Component: libgcj AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ro at techfak dot uni-bielefeld dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: alpha-dec-osf4.0f GCC host triplet: alpha-dec-osf4.0f GCC target triplet: alpha-dec-osf4.0f http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18222