Mainline as of 20060206 and the 4.1 branch as of 20060208 fail to bootstrap in libobjc:
/vol/gcc/obj/gcc-4.2.0-20060206/4.0f-gcc/./gcc/xgcc -B/vol/gcc/obj/gcc-4.2.0-20060206/4.0f-gcc/./gcc/ -B/vol/gcc/share/alpha-dec-osf4.0f/bin/ -B/vol/gcc/share/alpha-dec-osf4.0f/lib/ -isystem /vol/gcc/share/alpha-dec-osf4.0f/include -isystem /vol/gcc/share/alpha-dec-osf4.0f/sys-include -c -I. -I/vol/gcc/src/gcc-dist/libobjc -O2 -g -O2 -mieee -W -Wall -Wwrite-strings -Wstrict-prototypes -DIN_GCC -DIN_TARGET_LIBS -fno-strict-aliasing -fexceptions -I/vol/gcc/src/gcc-dist/libobjc/objc -I/vol/gcc/src/gcc-dist/libobjc/../gcc -I/vol/gcc/src/gcc-dist/libobjc/../gcc/config -I../.././gcc -I/vol/gcc/src/gcc-dist/libobjc/../include /vol/gcc/src/gcc-dist/libobjc/thr-objc.c -DPIC -o .libs/thr-objc.o In file included from /vol/gcc/src/gcc-dist/libobjc/../gcc/gthr-posix.h:43, from ../.././gcc/gthr-default.h:1, from /vol/gcc/src/gcc-dist/libobjc/../gcc/gthr.h:114, from /vol/gcc/src/gcc-dist/libobjc/thr-objc.c:38: /vol/gcc/obj/gcc-4.2.0-20060206/4.0f-gcc/./gcc/include/pthread.h:877: error: field '_Pfield' declared as a function [...] This is the same problem as PR libgomp/26308: libobjc/thr-objc.c defines _XOPEN_SOURCE=500 before including <gthr.h> and thus <pthread.h>, which doesn't work on that platform. This is a regression from the 4.0 branch introduced by this patch: 2005-11-09 Alexandre Oliva <[EMAIL PROTECTED]> PR other/4372 * thr-objc.c (_XOPEN_SOURCE): Define. 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/gcc/src/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 --with-gmp-dir=/vol/gnu/obj/gmp-4.1.3 --with-mpfr-dir=/vol/gnu/obj/gmp-4.1.3/mpfr --enable-languages=c,c++,fortran,java,objc,ada --disable-libmudflap How-To-Repeat: Bootstrap mainline or 4.1 branch as above. ------- Comment #1 from ro at techfak dot uni-bielefeld dot de 2006-02-15 21:15 ------- Fix: I use the following patch which works around this problem and works seemlessly on both alpha-dec-osf4.0f and alpha-dec-osf5.1b: Index: libobjc/thr-objc.c =================================================================== --- libobjc/thr-objc.c (revision 110838) +++ libobjc/thr-objc.c (working copy) @@ -26,8 +26,11 @@ Boston, MA 02110-1301, USA. */ #define _LIBOBJC /* The line below is needed for declarations of functions such as pthread_mutexattr_settype, without which gthr-posix.h may fail to - compile within libobjc. */ + compile within libobjc. Unfortunately, this breaks compilation on + Tru64 UNIX V4.0F, so disable it there. */ +#ifndef __osf__ #define _XOPEN_SOURCE 500 +#endif #include "config.h" #include "tconfig.h" #include "coretypes.h" -- Summary: libobjc bootstrap failure on Tru64 UNIX V4.0F Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: libobjc AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ro at techfak dot uni-bielefeld dot de 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=26309