The uClibc package contains the main C library. This library provides the basic routines for allocating memory, searching directories, opening and closing files, reading and writing files, string handling, pattern matching, arithmetic, and so on.
![[Note]](../images/note.png)
Below we are just telling uClibc to use its default configuration. For those who are more adventurous, you can use make menuconfig and do a more custom build for your uClibc installation.
The following patch contains the default configurations for the architectures covered in this book:
patch -Np1 -i ../uClibc-0.9.31-configs-2.patch
For the MIPS architecture, there are many different combinations of configurations that can be used when building uClibc based on the choices made previously for: endianess, ABI, and MIPS level. To ensure that the proper configuration is used based on those choices, first copy the configuration matching the endianess chosen, then update the ABI and MIPS level:
cp -v clfs/config.${CLFS_ARCH}.${CLFS_ENDIAN} .config
if [ "${CLFS_ABI}" == "n32" ]; \
then sed -i s/CONFIG_MIPS_O32_ABI/CONFIG_MIPS_N32_ABI/g .config; \
elif [ "${CLFS_ABI}" == "64" ]; \
then sed -i s/CONFIG_MIPS_O32_ABI/CONFIG_MIPS_N64_ABI/g .config; fi; \
if [ "${CLFS_MIPS_LEVEL}" == "3" ]; \
then sed -i s/CONFIG_MIPS_ISA_1/CONFIG_MIPS_ISA_3/g .config; fi
The config is a basic working system, but there are some options that are architecture specifc that need to be set. The following command will only bring up items that need a value that we did not specify in our generic config file patch:
make oldconfig
Compile the package:
make
Install the package:
make PREFIX=${CLFS} install