Pth-2.0.7

#### Beyond Linux® From Scratch - Version 2019-02-27

### Chapter 9. General Libraries

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# Pth-2.0.7

## Introduction to Pth

The Pth package contains a very portable POSIX/ANSI-C based library for Unix platforms which provides non-preemptive priority-based scheduling for multiple threads of execution (multithreading) inside event-driven applications. All threads run in the same address space of the server application, but each thread has its own individual program-counter, run-time stack, signal mask and errno variable.

This package is known to build and work properly using an LFS-8.4 platform.

### Package Information

- Download (HTTP): https://ftp.gnu.org/gnu/pth/pth-2.0.7.tar.gz

- Download (FTP): ftp://ftp.gnu.org/gnu/pth/pth-2.0.7.tar.gz

- Download MD5 sum: 9cb4a25331a4c4db866a31cbe507c793

- Download size: 652 KB

- Estimated disk space required: 5 MB

- Estimated build time: 0.2 SBU

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/pth

## Installation of Pth

### Caution

Don't add the `--enable-pthread` parameter to the configure command below else you will overwrite the pthread library and interface header installed by the Glibc package in LFS.

Install Pth by running the following commands:

    sed -i 's#$(LOBJS): Makefile#$(LOBJS): pth_p.h Makefile#' Makefile.in &&
    ./configure --prefix=/usr           \
                --disable-static        \
                --mandir=/usr/share/man &&
    make

To test the results, issue: make test.

Now, as the `root` user:

    make install &&
    install -v -m755 -d /usr/share/doc/pth-2.0.7 &&
    install -v -m644    README PORTING SUPPORT TESTS \
                        /usr/share/doc/pth-2.0.7

## Command Explanations

sed -i 's#$(LOBJS) ...: This sed fixes a race condition in the `Makefile`. It allows you to run make with multiple jobs (e.g., make -j4) .

`--disable-static`: This switch prevents installation of static versions of the libraries.

`--mandir=/usr/share/man`: This switch puts the man pages in `/usr/share/man` instead of `/usr/man`.

## Contents

Installed Program: pth-config
Installed Library: libpth.so
Installed Directory: /usr/share/doc/pth-2.0.7

### Short Descriptions

pth-config | is a utility used to configure and build applications based on the pth(3) library. It can be used to query the C compiler and linker flags which are required to correctly compile and link the application against the pth(3) library.
`libpth.so` | contains the API functions used by the GNU Portable Threads Library.

Last updated on 2019-02-15 15:58:29 -0600

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