error adding symbols: Malformed archive about core HOT 5 OPEN

I do not know about C source code.
Is it possible that PNG and harupdf are directly dependant ?
If yes, may be it is related to how they are on link order.
And this another reason to do not include libs=png on hbwin.hbc, because nested hbc can include hbwin.hbc and change order, this is not visible on HBP.

Generating C source output to 'C:\Users\jmcqu\AppData\Local\Temp\hbmk_tcnvbz.dir\harupdf.c'... Done.
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x33): undefined reference to png_get_io_ptr' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x147): undefined reference to png_get_error_ptr'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x19c): undefined reference to png_get_PLTE' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x325): undefined reference to png_create_read_struct'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x339): undefined reference to png_create_info_struct' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x35a): undefined reference to png_set_sig_bytes'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x373): undefined reference to png_set_read_fn' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x387): undefined reference to png_read_info'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x3aa): undefined reference to png_destroy_read_struct' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x442): undefined reference to png_get_IHDR'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x461): undefined reference to png_read_update_info' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x566): undefined reference to png_destroy_read_struct'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x5ce): undefined reference to png_get_valid' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x6f2): undefined reference to png_get_image_height'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x706): undefined reference to png_get_image_width' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x71a): undefined reference to png_get_color_type'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x75e): undefined reference to png_get_rowbytes' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x813): undefined reference to png_destroy_read_struct'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x828): undefined reference to png_set_strip_16' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x86b): undefined reference to png_destroy_read_struct'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x884): undefined reference to png_get_interlace_type' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x8a4): undefined reference to png_get_rowbytes'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x8b4): undefined reference to png_get_image_height' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x98f): undefined reference to png_get_tRNS'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xab8): undefined reference to png_get_image_height' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xad2): undefined reference to png_get_image_width'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xb0a): undefined reference to png_get_rowbytes' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xb98): undefined reference to png_get_rowbytes'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xbaa): undefined reference to png_get_image_height' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xc1d): undefined reference to png_read_rows'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xc52): undefined reference to png_read_image' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xcb6): undefined reference to png_read_image'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xd74): undefined reference to png_destroy_read_struct' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xecf): undefined reference to png_read_image'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0xf8f): undefined reference to png_read_image' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x1044): undefined reference to png_read_image'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x1110): undefined reference to png_read_image' d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x1276): undefined reference to png_sig_cmp'
d:/harbour/lib/win/mingw\liblibhpdf.a(hpdfimap.o):(.text+0x1382): undefined reference to `png_sig_cmp'
collect2.exe: error: ld returned 1 exit status

from core.

I copy src/3rd/png from 3.4 to 3.2 and all ok.
I do not know about C, I do not know if change is valid, but it works.

from core.

@JoseQuintas src/3rd/png has been updated in this repo, please report if the issue is still valid.

from core.

It is already made.

from core.

I was wrong. There are changes but problem is not solved.
Receive the error message just now. Solve on same way, copying from 3.4

from core.