Strange fork_copy error message

[Altera_Forum]

Hi, 

 what are these error messages (see below): "fork_copy". Does anyone have an idea?  I'm using 5.1sp1 (it also appears in 6.0sp1) Thanks!  jackie   **** Incremental build of configuration Release for project syslib ****  make -s all  Compiling alt_ioctl.c...  3 [main] nios2-elf-gcc 20424 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 20444, Win32 error 487 1020249 [main] nios2-elf-gcc 20424 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 11996, Win32 error 87 3056795 [main] nios2-elf-gcc 20424 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 17940, Win32 error 87 7285784 [main] nios2-elf-gcc 20424 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 1196, Win32 error 87 8293320 [main] nios2-elf-gcc 20424 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 13712, Win32 error 487 Compiling alt_irq_entry.S... Compiling alt_irq_handler.c... Compiling alt_irq_register.c... Compiling alt_irq_vars.c... Compiling alt_isatty.c... Compiling alt_kill.c... Compiling alt_link.c... Compiling alt_load.c... Compiling alt_lseek.c... Compiling alt_main.c... Compiling alt_malloc_lock.c... Compiling alt_mcount.S... Compiling alt_open.c... Compiling alt_read.c... Compiling alt_release_fd.c... Compiling alt_remap_cached.c... Compiling alt_remap_uncached.c... Compiling alt_rename.c... Compiling alt_sbrk.c... Compiling alt_settod.c... Compiling alt_software_exception.S...  2 [main] nios2-elf-gcc 18840 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 18856, Win32 error 87 1039457 [main] nios2-elf-gcc 18840 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 8636, Win32 error 87 3180527 [main] nios2-elf-gcc 18840 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 18956, Win32 error 87 8088217 [main] nios2-elf-gcc 18840 fork_copy: linked dll data/bss pass 0 failed, 0x676000..0x676264, done 0, windows pid 18800, Win32 error 87 nios2-elf-gcc: fork: Resource temporarily unavailable make: *** [obj/alt_software_exception.o] Error 1 Build completed