could not find native static library `Polly`

I'm using the inkwell crate (which depends on llvm-sys) and running cargo build gives me this error:

error: could not find native static library `Polly`, perhaps an -L flag is missing?

error: aborting due to previous error

error: could not compile `llvm-sys`

Here's the output of llvm-config-10 --link-static --libnames (it does have the Polly library)

libLLVMXRay.a libLLVMWindowsManifest.a libLLVMTableGen.a libLLVMSymbolize.a libLLVMDebugInfoPDB.a libLLVMPerfJITEvents.a libLLVMOrcJIT.a libLLVMOrcError.a libLLVMJITLink.a libLLVMObjectYAML.a libLLVMMCA.a libLLVMLTO.a libLLVMObjCARCOpts.a libLLVMExtensions.a libPolly.a libPollyISL.a libLLVMPasses.a libLLVMLineEditor.a libLLVMLibDriver.a libLLVMInterpreter.a libLLVMFuzzMutate.a libLLVMFrontendOpenMP.a libLLVMMCJIT.a libLLVMExecutionEngine.a libLLVMRuntimeDyld.a libLLVMDWARFLinker.a libLLVMDlltoolDriver.a libLLVMOption.a libLLVMDebugInfoGSYM.a libLLVMCoverage.a libLLVMCoroutines.a libLLVMAVRDisassembler.a libLLVMAVRCodeGen.a libLLVMAVRAsmParser.a libLLVMAVRDesc.a libLLVMAVRInfo.a libLLVMXCoreDisassembler.a libLLVMXCoreCodeGen.a libLLVMXCoreDesc.a libLLVMXCoreInfo.a libLLVMX86Disassembler.a libLLVMX86AsmParser.a libLLVMX86CodeGen.a libLLVMX86Desc.a libLLVMX86Utils.a libLLVMX86Info.a libLLVMWebAssemblyDisassembler.a libLLVMWebAssemblyCodeGen.a libLLVMWebAssemblyDesc.a libLLVMWebAssemblyAsmParser.a libLLVMWebAssemblyInfo.a libLLVMSystemZDisassembler.a libLLVMSystemZCodeGen.a libLLVMSystemZAsmParser.a libLLVMSystemZDesc.a libLLVMSystemZInfo.a libLLVMSparcDisassembler.a libLLVMSparcCodeGen.a libLLVMSparcAsmParser.a libLLVMSparcDesc.a libLLVMSparcInfo.a libLLVMRISCVDisassembler.a libLLVMRISCVCodeGen.a libLLVMRISCVAsmParser.a libLLVMRISCVDesc.a libLLVMRISCVUtils.a libLLVMRISCVInfo.a libLLVMPowerPCDisassembler.a libLLVMPowerPCCodeGen.a libLLVMPowerPCAsmParser.a libLLVMPowerPCDesc.a libLLVMPowerPCInfo.a libLLVMNVPTXCodeGen.a libLLVMNVPTXDesc.a libLLVMNVPTXInfo.a libLLVMMSP430Disassembler.a libLLVMMSP430CodeGen.a libLLVMMSP430AsmParser.a libLLVMMSP430Desc.a libLLVMMSP430Info.a libLLVMMipsDisassembler.a libLLVMMipsCodeGen.a libLLVMMipsAsmParser.a libLLVMMipsDesc.a libLLVMMipsInfo.a libLLVMLanaiDisassembler.a libLLVMLanaiCodeGen.a libLLVMLanaiAsmParser.a libLLVMLanaiDesc.a libLLVMLanaiInfo.a libLLVMHexagonDisassembler.a libLLVMHexagonCodeGen.a libLLVMHexagonAsmParser.a libLLVMHexagonDesc.a libLLVMHexagonInfo.a libLLVMBPFDisassembler.a libLLVMBPFCodeGen.a libLLVMBPFAsmParser.a libLLVMBPFDesc.a libLLVMBPFInfo.a libLLVMARMDisassembler.a libLLVMARMCodeGen.a libLLVMARMAsmParser.a libLLVMARMDesc.a libLLVMARMUtils.a libLLVMARMInfo.a libLLVMAMDGPUDisassembler.a libLLVMAMDGPUCodeGen.a libLLVMMIRParser.a libLLVMipo.a libLLVMInstrumentation.a libLLVMVectorize.a libLLVMLinker.a libLLVMIRReader.a libLLVMAsmParser.a libLLVMAMDGPUAsmParser.a libLLVMAMDGPUDesc.a libLLVMAMDGPUUtils.a libLLVMAMDGPUInfo.a libLLVMAArch64Disassembler.a libLLVMMCDisassembler.a libLLVMAArch64CodeGen.a libLLVMCFGuard.a libLLVMGlobalISel.a libLLVMSelectionDAG.a libLLVMAsmPrinter.a libLLVMDebugInfoDWARF.a libLLVMCodeGen.a libLLVMTarget.a libLLVMScalarOpts.a libLLVMInstCombine.a libLLVMAggressiveInstCombine.a libLLVMTransformUtils.a libLLVMBitWriter.a libLLVMAnalysis.a libLLVMProfileData.a libLLVMObject.a libLLVMTextAPI.a libLLVMBitReader.a libLLVMCore.a libLLVMRemarks.a libLLVMBitstreamReader.a libLLVMAArch64AsmParser.a libLLVMMCParser.a libLLVMAArch64Desc.a libLLVMMC.a libLLVMDebugInfoCodeView.a libLLVMDebugInfoMSF.a libLLVMBinaryFormat.a libLLVMAArch64Utils.a libLLVMAArch64Info.a libLLVMSupport.a libLLVMDemangle.a

does the issue depend on !4 (closed) ?