ELF file 'test7-fn-changed-app' might not be ABI compatible with 'libtest7-fn-changed-libapp-v1.so' due to differences with 'libtest7-fn-changed-libapp-v0.so' below: Functions changes summary: 0 Removed, 2 Changed, 0 Added functions Variables changes summary: 0 Removed, 0 Changed, 0 Added variable 2 functions with some indirect sub-type change: [C] 'function float add(float, float)' has some indirect sub-type changes: return type changed: type name changed from 'float' to 'int' type size hasn't changed [C] 'function void print(const Student)' has some indirect sub-type changes: parameter 1 of type 'const Student' has sub-type changes: in unqualified underlying type 'struct Student': type size changed from 128 to 192 (in bits) 1 data member insertion: 'float percentage', at offset 128 (in bits)