How to make use others' C library installed not for the system-wide (Ubuntu/Linux)?
I have downloaded and installed a library called htslib for specific bioinformatic use but not for the system (I'm usingUbuntu 18.04). Only parts of the library is needed for my exercise to parse data in a type called VCF format (basically tab-delimited file but contains many information in columns).
My test code (vcf_parser01.c) is attached to make use the VCF API from the htslib, for which the vcf part seems to be what I need and the vcf.h/vcf.c files are also attached here. Maybe the whole htslib is needed, that's one of the parts I need to confirm.
The htslib was compiled and installed locally without error through Makefile with the package, and the structure of the resulted folder is like:
3) To compile my test code, I used:
4) There are many errors believed to the linker related such as:
There were totally 196 "undefined reference to" lines for 39 functions, which seems involving other libraries!
My question is:
How to debug this linker problem?
I think I understand the .o .so .a files, and the -I/-L options for gcc but not in full good catch.
A bigger picture in my mind is to learn how to make use of any non-standard C libraries from others, especially when documentation of the API is not very clear. I narrow down the topic in ANSI/GNU C in Linux platform only.
I may need a full course on this, but I know there are C experts in the forum. Really appreciate anybody could help me out.
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