(autoconf.info) Compilers and Options

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 Compilers and Options
 =====================
 
    Some systems require unusual options for compilation or linking that
 the `configure' script does not know about.  You can give `configure'
 initial values for variables by setting them in the environment.  Using
 a Bourne-compatible shell, you can do that on the command line like
 this:
      CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
 
 Or on systems that have the `env' program, you can do it like this:
      env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
 

Info Catalog

(autoconf.info) Basic Installation

(autoconf.info) Invoking configure

(autoconf.info) Multiple Architectures