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libc for both hosted and freestanding environments
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libclayer

Build status Build status (FreeBSD)

libc for both hosted and freestanding environments.

Table of contents

API

Headers

We use semantic versioning for stable APIs. Stable APIs may only change when major version number is increased (or minor while major is zero). Work-in-progress APIs can change at any time.

Configuration

Because this library has no external dependencies, we use autoconf features to control behavior of the library, and packages to choose it's components. Configuration options also follow the semantic versioning scheme and are split into stable and work-in-progress ones. Here we cover only stable options.

Non-default options

Features

  • --enable-checks - enable usual tests
  • --enable-checks-all - enable all checks
  • --enable-checks-cppcheck - enable cppcheck Jinja2
  • --enable-pkg-config[=PATH] - install pkg-config files [PATH='${libdir}/pkgconfig']

Default options

Features

  • --(enable|disable)-float - floating-point arithmetic
  • --(enable|disable)-werror - fail on warning (CFLAGS+='-Werror')

Tips

Installation

./autogen.sh # if present
./configure
make
sudo make install
sudo ldconfig # on GNU/Linux

This is just a usual library. You can use most of it's APIs in hosted environment.

Development

./autogen.sh # if present
./configure --enable-checks # or --enable-checks-all, but see prerequisites
make

You can test with make check.

See also

Cross

Create configuration script with ./autogen.sh (if present).

Let's assume that your target triplet is i386-elf. Configure with cross-compiler in $PATH to make without it in $PATH:

./configure \
  --host='i386-elf' \
  --disable-shared \
  --enable-freestanding \
  CC="$(which i386-elf-gcc)"

The variables include AR, AS, CC, CCAS, LD, NM, OBJDUMP, RANLIB, STRIP. See the generated config.log for more information.

To install into specific directory use full path: DESTDIR="$(pwd)/dest" make install instead of DESTDIR=dest make install.