More Duplicate symbols in libfftw3.a and libfftw3f.a

[eastwindow]

Thanks @BiplabRaut for addressing #22.
I came across a similar problem in commits 1db2cf2, a1fb312, and b3f32d2 when statically linking both fftw3 and fftw3f in a binary.

ld.lld: error: duplicate symbol: plans
>>> defined at apiplan.c
>>>            apiplan.o:(plans) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3.a
>>> defined at apiplan.c
>>>            apiplan.o:(.bss+0x20) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3f.a

ld.lld: error: duplicate symbol: wisdom_write_set
>>> defined at apiplan.c
>>>            apiplan.o:(wisdom_write_set) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3.a
>>> defined at apiplan.c
>>>            apiplan.o:(.bss+0x0) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3f.a

ld.lld: error: duplicate symbol: wisp_set
>>> defined at planner.c
>>>            planner.o:(wisp_set) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3.a
>>> defined at planner.c
>>>            planner.o:(.bss+0x0) in archive /opt/AMD/aocl/aocl-linux-aocc-5.2.0/aocc/lib/libfftw3f.a

Libs are custom compiled with --enable-amd-opt --enable-amd-app-opt --enable-amd-top-n-planner