./configure --disable-fftw <other_stuff>
make
x86_64-pc-linux-gnu-g++ -Wall -DHAVE_CONFIG_H -D_FILE_OFFSET_BITS=64 -DUSEGC -pthread -DFFTWPP_SINGLE_THREAD -DHAVE_SYS_TYPES_H -O2 -march=native -pipe -fno-var-tracking -o asy camperror.o path.o drawpath.o drawlabel.o picture.o psfile.o texfile.o util.o settings.o guide.o flatguide.o knot.o drawfill.o path3.o drawpath3.o drawsurface.o pen.o types.o builtin.o gsl.o runtime.o runbacktrace.o runpicture.o runlabel.o runhistory.o runarray.o runfile.o runsystem.o runpair.o runtriple.o runpath.o runpath3d.o runstring.o runmath.o env.o genv.o stm.o dec.o errormsg.o callable.o name.o symbol.o entry.o exp.o newexp.o stack.o camp.tab.o lex.yy.o access.o virtualfieldaccess.o absyn.o record.o interact.o fileio.o fftw++.o simpson.o coder.o coenv.o impdatum.o locate.o parser.o program.o application.o varinit.o fundec.o refaccess.o envcompleter.o process.o constructor.o array.o Delaunay.o predicates.o PRCbitStream.o oPRCFile.o PRCdouble.o writePRC.o glrender.o tr.o arcball.o algebra3.o quaternion.o svnrevision.o main.o -Wl,-O1 -Wl,--as-needed -lglut -lGLU -lGL -lreadline -lrt -lsigsegv -lz -lm -L/usr/lib -lgc -lncurses -lgsl -lgslcblas ; \
fi
fftw++.o: In function `fftwpp::fftw::LoadWisdom()':
fftw++.cc:(.text+0x10d): undefined reference to `fftw_import_wisdom'
fftw++.o: In function `fftwpp::fftw::SaveWisdom()':
fftw++.cc:(.text+0x37f): undefined reference to `fftw_export_wisdom'
collect2: error: ld returned 1 exit status
make: *** [asy] Error 1
As it happens, this was already fixed in svn just about 1 hour before this bug report was submitted.
I will make a new release tomorrow.