I am getting this error on one machine and can't figure out why.  Any suggestions?

paradox.c: In function 'paradox_file_open':
paradox.c:190: warning: ISO C90 forbids mixed declarations and code
paradox.c: In function 'paradox_file_probe':
paradox.c:271: error: 'false' undeclared (first use in this function)
paradox.c:271: error: (Each undeclared identifier is reported only once
paradox.c:271: error: for each function it appears in.)
paradox.c:279: error: 'true' undeclared (first use in this function)
make[3]: *** [paradox.lo] Error 1
make[3]: Leaving directory `/usr/src/gnumeric-1.7.13/plugins/paradox'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/src/gnumeric-1.7.13/plugins'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/src/gnumeric-1.7.13'
make: *** [all] Error 2