Node:Obsolete config.status Use, Next:acconfig.h, Up:Obsolete Constructs
config.status Invocationconfig.status now supports arguments to specify the files to
instantiate, see config.status Invocation, for more details. 
Before, environment variables had to be used.
| CONFIG_COMMANDS | Variable | 
The tags of the commands to execute.  The default is the arguments given
to AC_OUTPUT and AC_CONFIG_COMMANDS in
configure.ac. 
 | 
| CONFIG_FILES | Variable | 
The files in which to perform @variable@ substitutions. 
The default is the arguments given to AC_OUTPUT and
AC_CONFIG_FILES in configure.ac. 
 | 
| CONFIG_HEADERS | Variable | 
The files in which to substitute C #define statements.  The
default is the arguments given to AC_CONFIG_HEADERS; if that
macro was not called, config.status ignores this variable. 
 | 
| CONFIG_LINKS | Variable | 
The symbolic links to establish.  The default is the arguments given to
AC_CONFIG_LINKS; if that macro was not called,
config.status ignores this variable. 
 | 
In config.status Invocation, using this old interface, the example
would be:
config.h: stamp-h
stamp-h: config.h.in config.status
        CONFIG_COMMANDS= CONFIG_LINKS= CONFIG_FILES= \
          CONFIG_HEADERS=config.h ./config.status
        echo > stamp-h
Makefile: Makefile.in config.status
        CONFIG_COMMANDS= CONFIG_LINKS= CONFIG_HEADERS= \
          CONFIG_FILES=Makefile ./config.status
(If configure.ac does not call AC_CONFIG_HEADERS, there is
no need to set CONFIG_HEADERS in the make rules, equally
for CONFIG_COMMANDS etc.)