svgalib won't build

[Richard B. Pyne]

  gcc -Wall -Wstrict-prototypes -fPIC -I/usr/src/svgalib-1.4.3/include 
-I. -I/usr/src/svgalib-1.4.3/src -I/usr/src/svgalib-1.4.3/src/config 
-fomit-frame-pointer -O2 -fno-strength-reduce -pipe -g 
-DSVGALIB_CONFIG_FILE=\"/etc/vga/libvga.config\" -DALLOW_MOUSE_OVERRIDE 
-DET4000_REGS=\"/etc/vga/libvga.et4000\" -DDYNAMIC -c -o lrmi.o 
/usr/src/svgalib-1.4.3/src/lrmi.c
/usr/src/svgalib-1.4.3/src/lrmi.c: In function 'set_regs':
/usr/src/svgalib-1.4.3/src/lrmi.c:309:27: error: 'IF_MASK' undeclared 
(first use in this function)
/usr/src/svgalib-1.4.3/src/lrmi.c:309:27: note: each undeclared 
identifier is reported only once for each function it appears in
/usr/src/svgalib-1.4.3/src/lrmi.c:309:27: error: 'IOPL_MASK' undeclared 
(first use in this function)
/usr/src/svgalib-1.4.3/src/lrmi.c: In function 'run_vm86':
/usr/src/svgalib-1.4.3/src/lrmi.c:788:32: error: 'VIF_MASK' undeclared 
(first use in this function)
/usr/src/svgalib-1.4.3/src/lrmi.c:788:43: error: 'TF_MASK' undeclared 
(first use in this function)
/usr/src/svgalib-1.4.3/src/lrmi.c: In function '__svgalib_LRMI_int':
/usr/src/svgalib-1.4.3/src/lrmi.c:877:8: error: 'IF_MASK' undeclared 
(first use in this function)
/usr/src/svgalib-1.4.3/src/lrmi.c:877:8: error: 'IOPL_MASK' undeclared 
(first use in this function)
make[1]: *** [lrmi.o] Error 1
make[1]: Leaving directory `/usr/src/svgalib-1.4.3/sharedlib'
make: *** [sharedlib/libvga.so.1.4.3] Error 2
Creating /var/log/lunar/compile/svgalib-1.4.3.bz2
! Problem detected during BUILD