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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
Old 01-15-2020
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.
This User Gave Thanks to Neo For This Post:
 

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Jifty::Util(3pm)					User Contributed Perl Documentation					  Jifty::Util(3pm)

NAME
Jifty::Util - Things that don't fit anywhere else DESCRIPTION
absolute_path PATH "absolute_path" converts PATH into an absolute path, relative to the application's root (as determined by "app_root") This can be called as an object or class method. canonicalize_path PATH Takes a "path" style /foo/bar/baz and returns a canonicalized (but not necessarily absolute) version of the path. Always use "/" as the separator, even on platforms which recognizes both "/" and "" as valid separators in PATH. jifty_root Returns the root directory that Jifty has been installed into. Uses %INC to figure out where Jifty.pm is. share_root Returns the 'share' directory of the installed Jifty module. This is currently only used to store the common Mason components, CSS, and JS of Jifty and it's plugins. app_root Returns the application's root path. This is done by returning $ENV{'JIFTY_APP_ROOT'} if it exists. If not, Jifty tries searching upward from the current directory, looking for a directory which contains a "bin/jifty". Failing that, it searches upward from wherever the executable was found. It "die"s if it can only find "/usr" or "/usr/local" which fit these criteria. is_app_root PATH Returns a boolean indicating whether the path passed in is the same path as the app root. Useful if you're recursing up a directory tree and want to stop when you've hit the root. It does not attempt to handle symbolic links. default_app_name Returns the default name of the application. This is the name of the application's root directory, as defined by "app_root". make_path PATH When handed a directory, creates that directory, starting as far up the chain as necessary. (This is what 'mkdir -p' does in your shell). require PATH Uses UNIVERSAL::require to require the provided "PATH". Additionally, logs any failures at the "error" log level. try_to_require Module This method works just like "require", except that it suppresses the error message in cases where the module isn't found. already_required class Helper function to test whether a given class has already been loaded. generate_uuid Generate a new UUID using Data::UUID. reference_to_data Object Provides a saner output format for models than "MyApp::Model::Foo=HASH(0x1800568)". stringify LIST Takes a list of values and forces them into strings. Right now all it does is concatenate them to an empty string, but future versions might be more magical. AUTHOR
Various folks at Best Practical Solutions, LLC. perl v5.14.2 2010-12-08 Jifty::Util(3pm)
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