Error Instalation #8
Description
I got errors like below, please tell me what I miss
$ make
g++ -I. -I./include/ -I./ -I./newmat10/ -I/usr/include -I. -I./modules/generate_blocks/ -I./modules/onepdm -I./modules/twopdm/ -I./modules/npdm -I./modules/two_index_ops -I./modules/three_index_ops -I./modules/four_index_ops -std=c++0x -I./modules/ResponseTheory -I./modules/nevpt2 -I./molcas -I./modules/mps_nevpt -DNDEBUG -O2 -g -funroll-loops -Werror -Wno-error=deprecated-declarations -fdiagnostics-color=always -DBLAS -DUSELAPACK -DSERIAL -DBOOST_1_71_0 -DFAST_MTP -D_HAS_CBLAS -c saveBlock.C -o saveBlock.o
saveBlock.C: In static member function ‘static void SpinAdapted::StackSpinBlock::restore(bool, const std::vector&, SpinAdapted::StackSpinBlock&, int, int, char*)’:
saveBlock.C:102:8: error: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Werror=unused-result]
102 | fread(initialData, sizeof(int), 31, fp[0]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
saveBlock.C:103:8: error: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Werror=unused-result]
103 | fread(&allindexsize, sizeof(int), 1, fp[0]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
saveBlock.C:105:8: error: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Werror=unused-result]
105 | fread(allindices, sizeof(int), allindexsize, fp[0]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
saveBlock.C:107:8: error: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Werror=unused-result]
107 | fread(&(b.totalMemory), sizeof(long), 1, fp[0]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
saveBlock.C:111:8: error: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Werror=unused-result]
111 | fread(b.data, sizeof(double), b.totalMemory, fp[0]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
make: *** [Makefile:233: saveBlock.o] Error 1