I'll probably have to debug this myself..but compiling Tcl 8.5.8's tclStrToD.c on alphaev67-dec-osf5.1 takes an inordinately long time. I've left it running for many minutes. Everything else in Tcl compiled fairly rapidly, just this one file is going and going. I tried without optimizing too.
gcc -c -O -mieee -Wall -fPIC -I"." -I/home/jayk/src/tcl8.5.8/unix/../unix -I/home/jayk/src/tcl8.5.8/unix/../generic -I/home/jayk/src/tcl8.5.8/unix/../libtommath -DPACKAGE_NAME=\"tcl\" -DPACKAGE_TARNAME=\"tcl\" -DPACKAGE_VERSION=\"8.5\" -DPACKAGE_STRING=\"tcl\ 8.5\" -DPACKAGE_BUGREPORT=\"\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_LIMITS_H=1 -DHAVE_SYS_PARAM_H=1 -DTCL_CFGVAL_ENCODING=\"iso8859-1\" -DTCL_SHLIB_EXT=\".so\" -DTCL_CFG_OPTIMIZED=1 -DTCL_CFG_DEBUG=1 -DTCL_TOMMATH=1 -DMP_PREC=4 -DTCL_WIDE_INT_IS_LONG=1 -DHAVE_GETCWD=1 -DHAVE_OPENDIR=1 -DHAVE_STRTOL=1 -DHAVE_WAITPID=1 -DUSE_TERMIOS=1 -DHAVE_SYS_TIME_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_STRUCT_TM_TM_ZONE=1 -DHAVE_TM_ZONE=1 -DHAVE_GMTIME_R=1 -DHAVE_LOCALTIME_R=1 -DHAVE_MKTIME=1 -DHAVE_TM_GMTOFF=1 -DHAVE_TIMEZONE_VAR=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1 -DHAVE_ST_BLKSIZE=1 -Dsocklen_t=int -DHAVE_INTPTR_T=1 -DHAVE_UINTPTR_T=1 -DNO_UNION_WAIT=1 -DHAVE_SIGNED_CHAR=1 -DHAVE_LANGINFO=1 -DHAVE_CHFLAGS=1 -DHAVE_SYS_IOCTL_H=1 -DUSE_FIONBIO=1 -DTCL_UNLOAD_DLLS=1 /home/jayk/src/tcl8.5.8/unix/../generic/tclStrToD.c bash-4.1$ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/home/jayk/libexec/gcc/alphaev67-dec-osf5.1/4.5.0/lto-wrapper Target: alphaev67-dec-osf5.1 Configured with: /home/jayk/src/gcc-4.5.0/configure -disable-nls -disable-bootstrap -with-gmp=/home/jayk -prefix=/home/jayk Thread model: posix gcc version 4.5.0 (GCC) -- Summary: tclStrToD.c takes very long to compile (forever?) Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jay dot krell at cornell dot edu GCC host triplet: alphaev67-dec-osf5.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44476