wllkk / face-recognition-ncnn Goto Github PK

Hi, can I ask for a question?
I execute the "cmake ../" and "make" int my Ubuntu-18, the former successed but the latter failed.
When the "make" command is executed 100%, the errors occur. There are something like "undefined reference to XXX".
See this:

sakura@Sakura-Virture:~/CppProject/face-recognition-ncnn/build$ make -- Found OpenMP_C: -fopenmp -- Found OpenMP_CXX: -fopenmp -- Found OpenMP_C: -fopenmp -- Found OpenMP_CXX: -fopenmp -- Configuring done -- Generating done -- Build files have been written to: /home/sakura/CppProject/face-recognition-ncnn/build [ 20%] Building CXX object CMakeFiles/face_ncnn.dir/face_ncnn.cpp.o /home/sakura/CppProject/face-recognition-ncnn/face_ncnn.cpp: In function ‘int main(int, char**)’: /home/sakura/CppProject/face-recognition-ncnn/face_ncnn.cpp:212:44: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ {aka ‘long unsigned int’} [-Wformat=] 212 | sprintf(name, "../output_pic/face_%d.jpg", i); | ~^ ~ | | | | int size_t {aka long unsigned int} | %ld [ 40%] Building CXX object CMakeFiles/face_ncnn.dir/src/anchor_creator.cpp.o [ 60%] Building CXX object CMakeFiles/face_ncnn.dir/src/config.cpp.o [ 80%] Building CXX object CMakeFiles/face_ncnn.dir/src/utils.cpp.o In file included from /home/sakura/CppProject/face-recognition-ncnn/src/utils.h:4, from /home/sakura/CppProject/face-recognition-ncnn/src/utils.cpp:1: /home/sakura/CppProject/face-recognition-ncnn/src/anchor_creator.h: In member function ‘float& Anchor::operator[](int)’: /home/sakura/CppProject/face-recognition-ncnn/src/anchor_creator.h:68:5: warning: control reaches end of non-void function [-Wreturn-type] 68 | } | ^ [100%] Linking CXX executable face_ncnn /usr/bin/ld: ../lib/libncnn.a(convolution_x86_avx2.cpp.o): in function ncnn::Convolution_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.5]':
convolution_x86_avx2.cpp:(.text+0x65f5): undefined reference to __expf_finite' /usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x6622): undefined reference to __expf_finite'
/usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x662f): undefined reference to __logf_finite' /usr/bin/ld: ../lib/libncnn.a(convolution_x86_avx2.cpp.o): in function ncnn::Convolution_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.9]':
convolution_x86_avx2.cpp:(.text+0x6916): undefined reference to __expf_finite' /usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x6923): undefined reference to __logf_finite'
/usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x6a75): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(convolution_x86_avx2.cpp.o): in function ncnn::Convolution_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.10]':
convolution_x86_avx2.cpp:(.text+0x7105): undefined reference to __expf_finite' /usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x7112): undefined reference to __logf_finite'
/usr/bin/ld: convolution_x86_avx2.cpp:(.text+0x72e3): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(bnll.cpp.o): in function ncnn::BNLL::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]':
bnll.cpp:(.text+0x109): undefined reference to __expf_finite' /usr/bin/ld: bnll.cpp:(.text+0x116): undefined reference to __logf_finite'
/usr/bin/ld: bnll.cpp:(.text+0x151): undefined reference to __expf_finite' /usr/bin/ld: bnll.cpp:(.text+0x162): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(convolution.cpp.o): in function ncnn::Convolution::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': convolution.cpp:(.text+0x6f3): undefined reference to __expf_finite'
/usr/bin/ld: convolution.cpp:(.text+0x730): undefined reference to __expf_finite' /usr/bin/ld: convolution.cpp:(.text+0x758): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(convolution_x86.cpp.o): in function ncnn::Convolution_x86::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.3]': convolution_x86.cpp:(.text+0x5178): undefined reference to __expf_finite'
/usr/bin/ld: convolution_x86.cpp:(.text+0x5185): undefined reference to __logf_finite' /usr/bin/ld: convolution_x86.cpp:(.text+0x52d1): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(convolution_x86.cpp.o): in function ncnn::Convolution_x86::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.4]': convolution_x86.cpp:(.text+0x557e): undefined reference to __expf_finite'
/usr/bin/ld: convolution_x86.cpp:(.text+0x558b): undefined reference to __logf_finite' /usr/bin/ld: convolution_x86.cpp:(.text+0x56a7): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(deconvolution.cpp.o): in function ncnn::Deconvolution::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': deconvolution.cpp:(.text+0x6f8): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(elu.cpp.o): in function ncnn::ELU::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': elu.cpp:(.text+0x146): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(exp.cpp.o): in function ncnn::Exp::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': exp.cpp:(.text+0x1b2): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(exp.cpp.o): in function ncnn::Exp::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': exp.cpp:(.text+0x28f): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct.cpp.o): in function ncnn::InnerProduct::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': innerproduct.cpp:(.text+0x874): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct.cpp:(.text+0x881): undefined reference to __logf_finite' /usr/bin/ld: innerproduct.cpp:(.text+0x95c): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86.cpp.o): in function ncnn::InnerProduct_x86::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.4]': innerproduct_x86.cpp:(.text+0x438): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86.cpp:(.text+0x445): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86.cpp:(.text+0x479): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86.cpp.o): in function ncnn::InnerProduct_x86::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.2]': innerproduct_x86.cpp:(.text+0x69c): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86.cpp:(.text+0x6a9): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86.cpp:(.text+0x725): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86_avx2.cpp.o): in function ncnn::InnerProduct_x86_avx2::forward_fp16(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.13]': innerproduct_x86_avx2.cpp:(.text+0x411): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x41e): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x4e1): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86_avx2.cpp.o): in function ncnn::InnerProduct_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.7]': innerproduct_x86_avx2.cpp:(.text+0x77d): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x78a): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x807): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86_avx2.cpp.o): in function ncnn::InnerProduct_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.3]': innerproduct_x86_avx2.cpp:(.text+0xa7b): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0xa88): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0xafe): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(innerproduct_x86_avx2.cpp.o): in function ncnn::InnerProduct_x86_avx2::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.10]': innerproduct_x86_avx2.cpp:(.text+0x10d2): undefined reference to __expf_finite'
/usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x10df): undefined reference to __logf_finite' /usr/bin/ld: innerproduct_x86_avx2.cpp:(.text+0x1125): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(log.cpp.o): in function ncnn::Log::forward_inplace(ncnn::Mat&, ncnn::Option const&) const': log.cpp:(.text+0xb3): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(log.cpp.o): in function ncnn::Log::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': log.cpp:(.text+0x212): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(log.cpp.o): in function ncnn::Log::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': log.cpp:(.text+0x2f3): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn.cpp.o): in function ncnn::LRN::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': lrn.cpp:(.text+0x77a): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn.cpp.o): in function ncnn::LRN::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.2]': lrn.cpp:(.text+0xa13): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn_x86.cpp.o): in function ncnn::LRN_x86::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': lrn_x86.cpp:(.text+0x63c): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn_x86.cpp.o): in function ncnn::LRN_x86::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.2]': lrn_x86.cpp:(.text+0x8bb): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn_x86_avx2.cpp.o): in function ncnn::LRN_x86_avx2::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': lrn_x86_avx2.cpp:(.text+0x652): undefined reference to __powf_finite'
/usr/bin/ld: ../lib/libncnn.a(lrn_x86_avx2.cpp.o):lrn_x86_avx2.cpp:(.text+0x6a7): more undefined references to __powf_finite' follow /usr/bin/ld: ../lib/libncnn.a(proposal.cpp.o): in function ncnn::Proposal::forward(std::vector<ncnn::Mat, std::allocatorncnn::Mat > const&, std::vector<ncnn::Mat, std::allocatorncnn::Mat >&, ncnn::Option const&) const [clone ._omp_fn.0]':
proposal.cpp:(.text+0x4f8): undefined reference to __expf_finite' /usr/bin/ld: proposal.cpp:(.text+0x50d): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_post_process<ncnn::post_process_log<float> >(ncnn::Mat&, float, ncnn::Option const&) [clone ._omp_fn.104]': reduction.cpp:(.text+0x3639): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_post_process<ncnn::post_process_log<float> >(ncnn::Mat&, float, ncnn::Option const&) [clone ._omp_fn.105]': reduction.cpp:(.text+0x36c9): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_post_process<ncnn::post_process_log<float> >(ncnn::Mat&, float, ncnn::Option const&) [clone ._omp_fn.106]': reduction.cpp:(.text+0x3759): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op_keepdims<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.108]': reduction.cpp:(.text+0x3840): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op_keepdims<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.109]': reduction.cpp:(.text+0x3940): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.116]': reduction.cpp:(.text+0x3a40): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.117]': reduction.cpp:(.text+0x3b40): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_post_process<ncnn::post_process_log<float> >(ncnn::Mat&, float, ncnn::Option const&) [clone ._omp_fn.107]': reduction.cpp:(.text+0x4306): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op_keepdims<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.110]': reduction.cpp:(.text+0x5efa): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.118]': reduction.cpp:(.text+0x5ffa): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.119]': reduction.cpp:(.text+0x60fa): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.123]': reduction.cpp:(.text+0x867e): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o): in function int ncnn::reduction_op<ncnn::reduction_op_sumsexp<float>, ncnn::reduction_op_add<float> >(ncnn::Mat const&, ncnn::Mat&, float, bool, bool, bool, ncnn::Option const&) [clone ._omp_fn.120]': reduction.cpp:(.text+0x87f0): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(reduction.cpp.o):reduction.cpp:(.text+0x953b): more undefined references to __expf_finite' follow /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o): in function int ncnn::binary_op_scalar_inplacencnn::binary_op_pow(ncnn::Mat&, float, ncnn::Option const&) [clone ._omp_fn.105]':
binaryop.cpp:(.text+0x1ae7): undefined reference to __powf_finite' /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o): in function int ncnn::binary_opncnn::binary_op_pow(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.72]':
binaryop.cpp:(.text+0x887b): undefined reference to __powf_finite' /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o): in function int ncnn::binary_opncnn::binary_op_pow(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.75]':
binaryop.cpp:(.text+0x898b): undefined reference to __powf_finite' /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o): in function int ncnn::binary_opncnn::binary_op_pow(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.67]':
binaryop.cpp:(.text+0xb295): undefined reference to __powf_finite' /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o): in function int ncnn::binary_opncnn::binary_op_pow(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.69]':
binaryop.cpp:(.text+0xb380): undefined reference to __powf_finite' /usr/bin/ld: ../lib/libncnn.a(binaryop.cpp.o):binaryop.cpp:(.text+0xb80f): more undefined references to __powf_finite' follow
/usr/bin/ld: ../lib/libncnn.a(unaryop.cpp.o): in function int ncnn::unary_op_inplace<ncnn::unary_op_exp>(ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.7]': unaryop.cpp:(.text+0xff9): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(unaryop.cpp.o): in function int ncnn::unary_op_inplace<ncnn::unary_op_log>(ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.8]': unaryop.cpp:(.text+0x1069): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(unaryop.cpp.o): in function int ncnn::unary_op_inplace<ncnn::unary_op_asin>(ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.12]': unaryop.cpp:(.text+0x1229): undefined reference to __asinf_finite'
/usr/bin/ld: ../lib/libncnn.a(unaryop.cpp.o): in function int ncnn::unary_op_inplace<ncnn::unary_op_acos>(ncnn::Mat&, ncnn::Option const&) [clone ._omp_fn.13]': unaryop.cpp:(.text+0x1299): undefined reference to __acosf_finite'
/usr/bin/ld: ../lib/libncnn.a(convolutiondepthwise.cpp.o): in function ncnn::ConvolutionDepthWise::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': convolutiondepthwise.cpp:(.text+0x813): undefined reference to __expf_finite'
/usr/bin/ld: convolutiondepthwise.cpp:(.text+0x850): undefined reference to __expf_finite' /usr/bin/ld: convolutiondepthwise.cpp:(.text+0x878): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(convolutiondepthwise.cpp.o): in function ncnn::ConvolutionDepthWise::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': convolutiondepthwise.cpp:(.text+0x124d): undefined reference to __expf_finite'
/usr/bin/ld: convolutiondepthwise.cpp:(.text+0x1323): undefined reference to __expf_finite' /usr/bin/ld: convolutiondepthwise.cpp:(.text+0x1369): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(detectionoutput.cpp.o): in function ncnn::DetectionOutput::forward(std::vector<ncnn::Mat, std::allocator<ncnn::Mat> > const&, std::vector<ncnn::Mat, std::allocator<ncnn::Mat> >&, ncnn::Option const&) const [clone ._omp_fn.0]': detectionoutput.cpp:(.text+0x3a2): undefined reference to __expf_finite'
/usr/bin/ld: detectionoutput.cpp:(.text+0x3bc): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(deconvolutiondepthwise.cpp.o): in function ncnn::DeconvolutionDepthWise::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]':
deconvolutiondepthwise.cpp:(.text+0x6e7): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(deconvolutiondepthwise.cpp.o): in function ncnn::DeconvolutionDepthWise::forward(ncnn::Mat const&, ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]':
deconvolutiondepthwise.cpp:(.text+0xf2c): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(yolodetectionoutput.cpp.o): in function ncnn::YoloDetectionOutput::forward_inplace(std::vector<ncnn::Mat, std::allocatorncnn::Mat >&, ncnn::Option const&) const [clone ._omp_fn.0]':
yolodetectionoutput.cpp:(.text+0x867): undefined reference to __expf_finite' /usr/bin/ld: ../lib/libncnn.a(yolodetectionoutput.cpp.o):yolodetectionoutput.cpp:(.text+0x887): more undefined references to __expf_finite' follow
/usr/bin/ld: ../lib/libncnn.a(mish.cpp.o): in function ncnn::Mish::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': mish.cpp:(.text+0x11e): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(mish_x86.cpp.o): in function ncnn::Mish_x86::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.1]': mish_x86.cpp:(.text+0x703): undefined reference to __expf_finite'
/usr/bin/ld: mish_x86.cpp:(.text+0x710): undefined reference to __logf_finite' /usr/bin/ld: mish_x86.cpp:(.text+0x744): undefined reference to __expf_finite'
/usr/bin/ld: mish_x86.cpp:(.text+0x751): undefined reference to __logf_finite' /usr/bin/ld: mish_x86.cpp:(.text+0x786): undefined reference to __expf_finite'
/usr/bin/ld: mish_x86.cpp:(.text+0x793): undefined reference to __logf_finite' /usr/bin/ld: ../lib/libncnn.a(mish_x86_avx2.cpp.o): in function ncnn::Mish_x86_avx2::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.2]':
mish_x86_avx2.cpp:(.text+0xa40): undefined reference to __expf_finite' /usr/bin/ld: mish_x86_avx2.cpp:(.text+0xa4d): undefined reference to __logf_finite'
/usr/bin/ld: mish_x86_avx2.cpp:(.text+0xa81): undefined reference to __expf_finite' /usr/bin/ld: mish_x86_avx2.cpp:(.text+0xa8e): undefined reference to __logf_finite'
/usr/bin/ld: mish_x86_avx2.cpp:(.text+0xac7): undefined reference to __expf_finite' /usr/bin/ld: mish_x86_avx2.cpp:(.text+0xad4): undefined reference to __logf_finite'
/usr/bin/ld: ../lib/libncnn.a(swish.cpp.o): in function ncnn::Swish::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]': swish.cpp:(.text+0x128): undefined reference to __expf_finite'
/usr/bin/ld: swish.cpp:(.text+0x160): undefined reference to __expf_finite' /usr/bin/ld: swish.cpp:(.text+0x198): undefined reference to __expf_finite'
/usr/bin/ld: swish.cpp:(.text+0x1fe): undefined reference to _ZGVbN4v___expf_finite' /usr/bin/ld: swish.cpp:(.text+0x26c): undefined reference to __expf_finite'
/usr/bin/ld: swish.cpp:(.text+0x2ba): undefined reference to __expf_finite' /usr/bin/ld: swish.cpp:(.text+0x308): undefined reference to __expf_finite'
/usr/bin/ld: swish.cpp:(.text+0x356): undefined reference to __expf_finite' /usr/bin/ld: swish.cpp:(.text+0x3a8): undefined reference to __expf_finite'
/usr/bin/ld: ../lib/libncnn.a(swish.cpp.o):swish.cpp:(.text+0x3eb): more undefined references to __expf_finite' follow /usr/bin/ld: ../lib/libncnn.a(softplus.cpp.o): in function ncnn::Softplus::forward_inplace(ncnn::Mat&, ncnn::Option const&) const [clone ._omp_fn.0]':
softplus.cpp:(.text+0xf4): undefined reference to __logf_finite' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/face_ncnn.dir/build.make:147：face_ncnn] error 1 make[1]: *** [CMakeFiles/Makefile2:76：CMakeFiles/face_ncnn.dir/all] error 2 make: *** [Makefile:84：all] error 2

My opencv version is 4.5.5 and the code of your program is never modified. It seems like the linking problem but I don't konw how to solve it. Could you tell me why it happens? Thank you!