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.
Report bugs to .
