error building Tcl9 on NetBSD

checking for cast to union support... yes
checking for stdbool.h... yes
checking for required early compiler flags... none
checking for 64-bit integer type... yes
checking for build with symbols... no
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
test: ==: unexpected operator
test: ==: unexpected operator
checking for tclsh... /tmp/tcl9.0b1/unix/tclsh
checking for macher... checking for zip... /usr/pkg/bin/zip
Found INFO Zip in environment
checking for building with zipfs... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating pkgIndex.tcl
Building package 'itcl4.2.4'
gcc -DPACKAGE_NAME=\"itcl\" -DPACKAGE_TARNAME=\"itcl\" -DPACKAGE_VERSION=\"4.2.4\" -DPACKAGE_STRING=\"itcl\ 4.2.4\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DBUILD_itcl=/\*\*/ -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DUSE_THREAD_ALLOC=1 -D_REENTRANT=1 -D_THREAD_SAFE=1 -DTCL_THREADS=1 -DUSE_TCL_STUBS=1 -DUSE_TCLOO_STUBS=1 -DMODULE_SCOPE=extern\ __attribute__\(\(__visibility__\(\"hidden\"\)\)\) -DHAVE_HIDDEN=1 -DHAVE_CAST_TO_UNION=1 -DHAVE_STDBOOL_H=1 -DTCL_WIDE_INT_IS_LONG=1 -DTCL_CFG_OPTIMIZED=1 -DHAVE_INTPTR_T=1 -DTCL_MAJOR_VERSION=8  -fPIC -DITCL_LIBRARY="/usr/local/lib/itcl4.2.4" -I. -I"/tmp/tcl9.0b1/pkgs/itcl4.2.4/generic" -I"/tmp/tcl9.0b1/pkgs/itcl4.2.4" -I"/tmp/tcl9.0b1/generic" -I"/tmp/tcl9.0b1/unix"    -pipe -pthread -O2 -DNDEBUG -Wall -fPIC -c `echo /tmp/tcl9.0b1/pkgs/itcl4.2.4/generic/itcl2TclOO.c` -o itcl2TclOO.o
In file included from /tmp/tcl9.0b1/generic/tclOO.h:172:0,
                 from /tmp/tcl9.0b1/generic/tclOOInt.h:17,
                 from /tmp/tcl9.0b1/pkgs/itcl4.2.4/generic/itcl2TclOO.c:13:
/tmp/tcl9.0b1/generic/tclOODecls.h:128:27: error: expected declaration specifiers or ... before * token
     const Tcl_MethodType2 *typePtr,
                           ^
/tmp/tcl9.0b1/generic/tclOODecls.h:133:38: error: expected declaration specifiers or ... before * token
     int flags, const Tcl_MethodType2 *typePtr,
                                      ^
/tmp/tcl9.0b1/generic/tclOODecls.h:138:27: error: expected declaration specifiers or ... before * token
     const Tcl_MethodType2 *typePtr,
                           ^
In file included from /tmp/tcl9.0b1/generic/tclOO.h:172:0,
                 from /tmp/tcl9.0b1/generic/tclOOInt.h:17,
                 from /tmp/tcl9.0b1/pkgs/itcl4.2.4/generic/itcl2TclOO.c:13:
/tmp/tcl9.0b1/generic/tclOODecls.h:181:72: error: expected declaration specifiers or ... before * token
     int (*tcl_MethodIsType2) (Tcl_Method method, const Tcl_MethodType2 *typePtr, void **clientDataPtr); /* 32 */
                                                                        ^
/tmp/tcl9.0b1/generic/tclOODecls.h:182:133: error: expected declaration specifiers or ... before * token
     Tcl_Method (*tcl_NewInstanceMethod2) (Tcl_Interp *interp, Tcl_Object object, Tcl_Obj *nameObj, int flags, const Tcl_MethodType2 *typePtr, void *clientData); /* 33 */
                                                                                                                                     ^
/tmp/tcl9.0b1/generic/tclOODecls.h:183:121: error: expected declaration specifiers or ... before * token
     Tcl_Method (*tcl_NewMethod2) (Tcl_Interp *interp, Tcl_Class cls, Tcl_Obj *nameObj, int flags, const Tcl_MethodType2 *typePtr, void *clientData); /* 34 */
                                                                                                                         ^
/tmp/tcl9.0b1/generic/tclOODecls.h:184:1: warning: no semicolon at end of struct or union
 } TclOOStubs;