GCC build fails on OSX 10.14.1 with "malformed object (unknown load command 1)"

I am trying to build a library on my mac (OSX Version 10.14.1, Xcode Version 10.1) and it fails giving following error:

Building target: application.aar -r "application.a" api.oar: creating archive application.a/opt/local/bin/ranlib: object: application.a(api.o) malformed object (unknown load command 1)ar: internal ranlib command failedmake[1]: *** [application.a] Error 1make: *** [all] Error 2

by running 'otool -l lib/api.o' I get the following result:

Mach header      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags 0xfeedfacf 16777223          3  0x00           1     5        616 0x00002000Load command 0      cmd LC_SEGMENT_64  cmdsize 472  segname   vmaddr 0x0000000000000000   vmsize 0x0000000000004fb0  fileoff 648 filesize 20400  maxprot 0x00000007 initprot 0x00000007   nsects 5    flags 0x0Section  sectname __text   segname __TEXT      addr 0x0000000000000000      size 0x00000000000040ae    offset 648     align 2^4 (16)    reloff 21048    nreloc 329     flags 0x80000400 reserved1 0 reserved2 0Section  sectname __cstring   segname __TEXT      addr 0x00000000000040ae      size 0x00000000000000cb    offset 17206     align 2^0 (1)    reloff 0    nreloc 0     flags 0x00000002 reserved1 0 reserved2 0Section  sectname __const   segname __TEXT      addr 0x0000000000004180      size 0x000000000000003f    offset 17416     align 2^4 (16)    reloff 0    nreloc 0     flags 0x00000000 reserved1 0 reserved2 0Section  sectname __compact_unwind   segname __LD      addr 0x00000000000041c0      size 0x00000000000005e0    offset 17480     align 2^3 (8)    reloff 23680    nreloc 47     flags 0x02000000 reserved1 0 reserved2 0Section  sectname __eh_frame   segname __TEXT      addr 0x00000000000047a0      size 0x0000000000000810    offset 18984     align 2^3 (8)    reloff 0    nreloc 0     flags 0x6800000b reserved1 0 reserved2 0Load command 1      cmd ?(0x00000032)  cmdsize 24Load command 2      cmd LC_DATA_IN_CODE  cmdsize 16  dataoff 24056 datasize 8Load command 3     cmd LC_SYMTAB cmdsize 24  symoff 24064   nsyms 93  stroff 25552 strsize 1668Load command 4            cmd LC_DYSYMTAB        cmdsize 80      ilocalsym 0      nlocalsym 15     iextdefsym 15     nextdefsym 39      iundefsym 54      nundefsym 39         tocoff 0           ntoc 0      modtaboff 0        nmodtab 0   extrefsymoff 0    nextrefsyms 0 indirectsymoff 0  nindirectsyms 0      extreloff 0        nextrel 0      locreloff 0        nlocrel 0

I am guessing load command miss matches between my gcc and osx version, but I can't find 0x00000032 command on mach-o/loader.h. does anyone have a clue about this?

here is the 'otool --version':

llvm-otool(1): Apple Inc. version cctools-895LLVM (http://llvm.org/):  LLVM version 4.0.1  Optimized build.  Default target: x86_64-apple-darwin18.2.0  Host CPU: haswell  Registered Targets:    aarch64    - AArch64 (little endian)    aarch64_be - AArch64 (big endian)    amdgcn     - AMD GCN GPUs    arm        - ARM    arm64      - ARM64 (little endian)    armeb      - ARM (big endian)    bpf        - BPF (host endian)    bpfeb      - BPF (big endian)    bpfel      - BPF (little endian)    hexagon    - Hexagon    lanai      - Lanai    mips       - Mips    mips64     - Mips64 [experimental]    mips64el   - Mips64el [experimental]    mipsel     - Mipsel    msp430     - MSP430 [experimental]    nvptx      - NVIDIA PTX 32-bit    nvptx64    - NVIDIA PTX 64-bit    ppc32      - PowerPC 32    ppc64      - PowerPC 64    ppc64le    - PowerPC 64 LE    r600       - AMD GPUs HD2XXX-HD6XXX    riscv32    - 32-bit RISC-V    riscv64    - 64-bit RISC-V    sparc      - Sparc    sparcel    - Sparc LE    sparcv9    - Sparc V9    systemz    - SystemZ    thumb      - Thumb    thumbeb    - Thumb (big endian)    x86        - 32-bit X86: Pentium-Pro and above    x86-64     - 64-bit X86: EM64T and AMD64    xcore      - XCore