How to make use others' C library installed not for the system-wide (Ubuntu/Linux)? Post: 303042977

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Top Forums Programming How to make use others' C library installed not for the system-wide (Ubuntu/Linux)? Post 303042977 by Neo on Wednesday 15th of January 2020 12:04:38 AM

01-15-2020

Administrator

First, I suggest when troubleshooting, you should:

Use the full path name to file, not relative path name. This will insure there are no strange, unseen PATH issues. For example:

Code:

gcc -Wall -O3 -I ./htslib-1.10.2/htslib  -o vcf_parser01 vcf.c  vcf_parser01.c

I would change this to:

Code:

gcc -Wall -O3 -I /FULL/PATH/TO/HERE/htslib-1.10.2/htslib  -o vcf_parser01 vcf.c  vcf_parser01.c

Second, you should confirm that these objects are in the PATH, exactly, and that you have read / access permission for them.

Sometimes, even the best sys admins install code under one userid, then they work as another userid, and they do not have permissions to access the file. Happens all the time (at least to me, LOL).

This is generally the first two steps I always take (back to basics, before back to the future).

Insure your PATH(s) are correct and objects / symbols are in the PATH(s), correctly.
Check file and directly permissions for the userid you are using to build.

UNIX and Linux are funny things, they generally do what they are told to do and report back the "facts" as they find them. In your case, gcc cannot find required symbols and objects. This is generally because they cannot find them, i.e. not in the search PATH or the file/directory permissions are "not as required".

Please post back and let me know if you are certain your PATHs are correct and why, using the FULL PATH names to files and directories in your command line for gcc.

Since we are not "standing behind you, watching you type", we cannot "see" what directory you are in, so to be sure, it is always best to use FULL PATH names when troubleshooting a problem like this.

Thanks.

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LEARN ABOUT CENTOS

gsettings

GSETTINGS(1)							   User Commands						      GSETTINGS(1)

NAME

       gsettings - GSettings configuration tool

SYNOPSIS

       gsettings get SCHEMA [:PATH]  KEY

       gsettings monitor SCHEMA [:PATH]  [KEY]

       gsettings writable SCHEMA [:PATH]  KEY

       gsettings range SCHEMA [:PATH]  KEY

       gsettings set SCHEMA [:PATH]  KEY VALUE

       gsettings reset SCHEMA [:PATH]  KEY

       gsettings reset-recursively SCHEMA [:PATH]

       gsettings list-schemas

       gsettings list-relocatable-schemas

       gsettings list-keys SCHEMA [:PATH]

       gsettings list-children SCHEMA [:PATH]

       gsettings list-recursively [SCHEMA [:PATH]]

       gsettings help [COMMAND]

DESCRIPTION

       gsettings offers a simple commandline interface to GSettings. It lets you get, set or monitor an individual key for changes.

       The SCHEMA and KEY arguments are required for most commands to specify the schema id and the name of the key to operate on. The schema id
       may optionally have a :PATH suffix. Specifying the path is only needed if the schema does not have a fixed path.

       When setting a key, you also need specify a VALUE The format for the value is that of a serialized GVariant, so e.g. a string must include
       explicit quotes: "'foo'". This format is also used when printing out values.

COMMANDS

       get
	   Gets the value of KEY. The value is printed out as a serialised GVariant.

       monitor
	   Monitors KEY for changes and prints the changed values. If no KEY is specified, all keys in the schema are monitored. Monitoring will
	   continue until the process is terminated.

       writable
	   Finds out whether KEY is writable.

       range
	   Queries the range of valid values for KEY.

       set
	   Sets the value of KEY to VALUE. The value is specified as a serialised GVariant.

       reset
	   Resets KEY to its default value.

       reset-recursively
	   Reset all keys under the given SCHEMA.

       list-schemas
	   Lists the installed, non-relocatable schemas. See list-relocatable-schemas if you are interested in relocatable schemas.

       list-relocatable-schemas
	   Lists the installed, relocatable schemas. See list-schemas if you are interested in non-relocatable schemas.

       list-keys
	   Lists the keys in SCHEMA.

       list-children
	   Lists the children of SCHEMA.

       list-recursively
	   Lists keys and values, recursively. If no SCHEMA is given, list keys in all schemas.

       help
	   Prints help and exits.

GIO
																      GSETTINGS(1)