libmad_configure

Usage: ./configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), 要指定环境变量

specify them asVAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:

  -h, --help              display this help and exit

      --help=short        display options specific to this package

      --help=recursive    display the short help of all the included packages

  -V, --version           display version information and exit

  -q, --quiet, --silent   do not print `checking...' messages

      --cache-file=FILE   cache test results in FILE [disabled]

  -C, --config-cache      alias for `--cache-file=config.cache'

  -n, --no-create         do not create output files

      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:

  --prefix=PREFIX         install architecture-independent files in PREFIX

  [/usr/local]

  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX

  [PREFIX]

By default, `make install' will install all the files in

`/usr/local/bin', `/usr/local/lib' etc.  You can specify

an installation prefix other than `/usr/local' using `--prefix',

for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:

微调的安装目录：

  --bindir=DIR           user executables [EPREFIX/bin]

  --sbindir=DIR          system admin executables [EPREFIX/sbin]

  --libexecdir=DIR       program executables [EPREFIX/libexec]

  --datadir=DIR          read-only architecture-independent data [PREFIX/share]

  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]

  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]

  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]

  --libdir=DIR           object code libraries [EPREFIX/lib]

  --includedir=DIR       C header files [PREFIX/include]

  --oldincludedir=DIR    C header files for non-gcc [/usr/include]

  --infodir=DIR          info documentation [PREFIX/info]

  --mandir=DIR           man documentation [PREFIX/man]

Program names:

  --program-prefix=PREFIX            prepend PREFIX to installed program names

前置PREFIX安装的程序名

  --program-suffix=SUFFIX            append SUFFIX to installed program names

追加后缀到安装的程序名

  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

System types:

  --build=BUILD     configure for building on BUILD [guessed]

把building的目录配置BUID上

  --host=HOST       cross-compile to build programs to run on HOST [BUILD]

交叉编译生成程序运行在主机

Optional Features:

  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)

  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]

  --disable-dependency-tracking  speeds up one-time build

  --enable-dependency-tracking   do not reject拒绝 slow dependency extractors

  --enable-shared[=PKGS]

                          build shared libraries [default=yes]

  --enable-static[=PKGS]

                          build static libraries [default=yes]

  --enable-fast-install[=PKGS]

                          optimize for fast installation [default=yes]

  --disable-libtool-lock  avoid locking (might break parallel builds建立平行可能被打破)

  --enable-speed          optimize for speed over accuracy

速度优化过于准确性

  --enable-accuracy       optimize for accuracy over speed

  --enable-fpm=ARCH       use ARCH-specific fixed-point math routines (one of:

                          intel, arm, mips, sparc, ppc, 64bit, default)

  --enable-sso            use subband synthesis（合成） optimization

  --disable-aso           disable architecture-specific optimizations

  --enable-strict-iso    

use strict严格精确的 ISO/IEC interpretations

  --enable-profiling      generate profiling 生成精明扼要code

  --enable-debugging      enable diagnostic debugging support

  --disable-debugging     do not enable debugging and use more optimization

  --enable-experimental   enable experimental code

Optional Packages:

  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]

  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)

  --with-gnu-ld           assume 假设the C compiler uses GNU ld [default=no]

  --with-pic              try to use only PIC/non-PIC objects [default=use

                          both]

  --with-tags[=TAGS]

                          include additional configurations [automatic]

Some influential很有影响力的 environment variables:

  CC          C compiler command

  CFLAGS      C compiler flags

  LDFLAGS     linker flags, e.g. -L if you have libraries in a

              nonstandard directory

  CPPFLAGS    C/C++ preprocessor flags, e.g. -I if you have

              headers in a nonstandard directory

  CCAS        assembler compiler command (defaults to CC)

  CCASFLAGS   assembler compiler flags (defaults to CFLAGS)

  CPP         C preprocessor

  CXX         C++ compiler command

  CXXFLAGS    C++ compiler flags

  CXXCPP      C++ preprocessor

  F77         Fortran 77 compiler command

  FFLAGS      Fortran 77 compiler flags

Use these variables to override优先于 the choices made by `configure' or to help

it to find libraries and programs with nonstandard names/locations.

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