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I want to compile an OpenCL program that uses clAmdFFT, AMDs OpenCL FFT, which is closed-source. $ objdump -x libclAmdFft.Runtime.so Dynamic Section: NEEDED libOpenCL.so.1 Version References: required from libOpenCL.so.1: 0x028568b0 0x00 05 OPENCL_1.0 On one machine, I'm using the AMD driver, which comes with a libOpenCL.so that includes version information, like this: a$ objdump -T /opt/AMDAPP/lib/x86_64/libOpenCL.so 0000000000002610 g DF .text 0000000000000018 OPENCL_1.0 clGetSamplerInfo 00000000000032e0 g DF .text 0000000000000018 OPENCL_1.1 clSetEventCallback 0000000000002350 g DF .text 0000000000000018 OPENCL_1.2 clCreateSubDevices Everything is fine on this machine. On another machine, I'm using the nVidia driver, which comes with a libOpenCL.so that doesn't include version information, like this: b$ objdump -T /usr/lib/libOpenCL.so # -> /usr/lib/nvidia-current/libOpenCL.so 00000000000021f0 g DF .text 0000000000000018 Base clGetSamplerInfo 0000000000002a40 g DF .text 0000000000000018 Base clSetEventCallback Linking a program with -llibOpenCL.so -llibclAmdFft.Runtime.so fails here, since clAmdFft wants to link to the tagged symbols: libclAmdFftRuntime.so: undefinded reference to `clCreateBuffer@OPENCL_1.0` The dynamic linker also generates this complaint: b$ ldd libclAmdFft.Runtime.so libclAmdFft.Runtime.so: …/libOpenCL.so.1: no version information available … Since the nVidia driver implements OpenCL 1.1 and AmdFFT only needs 1.0, it should work, if I can convince it that Base = OPENCL_1.0 . Is that possible? I can't force nVidia-users to install another version, since the libOpenCL is part of the driver, like libGL. Linking with --unresolved-symbols=ignore-in-shar

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