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Where does pkg-config look for PC files?
pc. By default, pkg-config looks in the directory prefix/lib/pkgconfig for these files; it will also look in the colon-separated (on Windows, semicolon-separated) list of directories specified by the PKG_CONFIG_PATH environment variable.
Where is Pkg_config_path?
PKG_CONFIG_PATH is a environment variable that specifies additional paths in which pkg-config will search for its . pc files. This variable is used to augment pkg-config’s default search path. On a typical Unix system, it will search in the directories /usr/lib/pkgconfig and /usr/share/pkgconfig .
What is Pkgconfig in Linux?
pkg-config is a computer program that defines and supports a unified interface for querying installed libraries for the purpose of compiling software that depends on them. pkg-config was originally designed for Linux, but it is now also available for BSD, Microsoft Windows, macOS, and Solaris.
What is pkg-config in Windows?
pkg-config is a helper tool used when compiling applications and libraries. pkg-config works on multiple platforms: Linux and other UNIX-like operating systems, Mac OS X and Windows. It does not require anything but a reasonably well working C compiler and a C library, but can use an installed glib if that is present.
What is the Pkg_config_path?
How do I find Opencv on my computer?
Now that all that installing stuff is out of the way, let’s see how we can run your OpenCV code:
- Install opencv on your system.
- Unzip the zip file.
- Open the terminal and go to that folder.
- Type the following on your terminal to compile: $ g++ main.cpp MyFile.h MyFile.cpp `pkg-config opencv –cflags –libs` -o main.o.
Where does pkg-config find.pc files?
Perhaps you should add the directory containing `cld.pc’ to the PKG_CONFIG_PATH environment variable No package ‘cld’ found The `cld` C++ library is absent from this system. Please install it. However when checking in the /usr/local/lib folder I see the libs and the .pc file is in the pkgconfig subfolder
Do you need to package.pc files in PKG?
You will need to package the .pc files from your dependencies. You can adjust the PKG_CONFIG_PATH to let pkg-config tool locate them. With this approach you will patch the .pc files from B and C before packaging them. The goal is to replace the absolute path (the variable part of the path) with a variable placeholder.
Why is pkg config not picking up Python script?
It seems that although the PKG_CONFIG_PATH was properly set the Python script was not picking it up. Looking at the script it starts pkg-config in a subprocess and I am not sure whether the environment variable information is passed to the subprocess.
How to declare prefix in pkg-config 0.29?
If you have available pkg-config >= 0.29 and you have only one dependency, you can directly use the –define-prefix option to declare a custom prefix variable. With this approach you won’t need to patch anything, just declare the correct variable.