#### Linux From Scratch - Version 12.0-rc1

### Chapter 8. Installing Basic System Software

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# 8.36. Libtool-2.4.7

The Libtool package contains the GNU generic library support script. It makes the use of shared libraries simpler with a consistent, portable interface.

Approximate build time: 1.3 SBU
Required disk space: 45 MB

## 8.36.1. Installation of Libtool

Prepare Libtool for compilation:

    ./configure --prefix=/usr

Compile the package:

    make

To test the results, issue:

    make -k check

### Note

The test time for Libtool can be reduced significantly on a system with multiple cores. To do this, append TESTSUITEFLAGS=-j<N> to the line above. For instance, using -j4 can reduce the test time by over 60 percent.

Five tests are known to fail in the LFS build environment due to a circular dependency, but these tests pass if rechecked after automake has been installed. Additionally, with grep-3.8, two tests will trigger a warning for non-POSIX regular expressions and fail.

Install the package:

    make install

Remove a useless static library:

    rm -fv /usr/lib/libltdl.a

## 8.36.2. Contents of Libtool

Installed programs: libtool and libtoolize
Installed libraries: libltdl.so
Installed directories: /usr/include/libltdl and /usr/share/libtool

### Short Descriptions

libtool | Provides generalized library-building support services
libtoolize | Provides a standard way to add libtool support to a package
`libltdl` | Hides the various difficulties of opening dynamically loaded libraries

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