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Top Forums Programming How to make use others' C library installed not for the system-wide (Ubuntu/Linux)? Post 303043007 by GRMartin on Wednesday 15th of January 2020 06:17:24 PM
Old 01-15-2020
If you link to a shared library intead of the archive it's a little more complicted. If the shared library isn't installed in a directory know to the loader then you need to tell it where to find it. The rpath option I mentioned is passed to the linker and added to the executable. As long as the shared library is in the same place it will find it. You can also set LD_LIBRARY_PATH to the directory where it is. One way to do this (in a bash shell) is:
Code:
export LD_LIBRARY_PATH=/home/yifangt/Study/C/VCF/htslib-1.10.2; ./vcf_parser01

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JOCAMLMKLIB(1)						      General Commands Manual						    JOCAMLMKLIB(1)

NAME
jocamlmklib - generate libraries with mixed C / Caml code. SYNOPSIS
ocalmklib [options] files DESCRIPTION
The jocamlmklib command facilitates the construction of libraries containing both Caml code and C code, and usable both in static linking and dynamic linking modes. OPTIONS
-h, --help Show summary of options. -cclib lib C library passed to jocamlc -a or jocamlopt(1) -a only. -ccopt opt C option passed to jocamlc(1) -a or jocamlopt(1) -a only. -custom Disable dynamic loading. -dllpath dir Add dir to the run-time search path for DLLs. -I dir Add dir to the path searched for Caml object files. -failsafe Fall back to static linking if DLL construction failed. -ldopt opt C option passed to the shared linker only. -linkall Build Caml archive with link-all behavior. -llib Specify a dependent C library. -Ldir Add dir to the path searched for C libraries. -jocamlc cmd Use cmd in place of jocamlc(1). -jocamlopt cmd Use cmd in place of jocamlopt(1). -o name Generated Caml library is named name.cma or name.cmxa. -oc name Generated C library is named dllname.so or libname.a. -rpath dir Same as -dllpath dir. -Rdir Same as -rpath. -verbose Print commands before executing them. -Wl, -rpath dir Same as -dllpath dir. -Wl, -rpath -Wl dir Same as -dllpath dir. -Wl, -Rdir Same as -dllpath dir. -Fdir Specify a framework directory (MacOSX). -framework name Use framework name (MacOSX). SEE ALSO
jocamlc(1), jocamlopt(1). AUTHOR
This manual page was written by Samuel Mimram <samuel.mimram@ens-lyon.org>, for the Debian project (but may be used by others). August 19, 2004 JOCAMLMKLIB(1)
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