Node:Output, Next:Configuration Actions, Previous:Input, Up:Setup

Outputting Files

Every Autoconf script, e.g., configure.ac, should finish by calling AC_OUTPUT. It is the macro that generates config.status, which will create the Makefiles and any other files resulting from configuration. The only required macro is AC_INIT (see Input).

AC_OUTPUT

Macro

Generate config.status and launch it. Call this macro once, at the end of configure.ac. config.status will take all the configuration actions: all the output files (see Configuration Files, macro AC_CONFIG_FILES), header files (see Configuration Headers, macro AC_CONFIG_HEADERS), commands (see Configuration Commands, macro AC_CONFIG_COMMANDS), links (see Configuration Links, macro AC_CONFIG_LINKS), subdirectories to configure (see Subdirectories, macro AC_CONFIG_SUBDIRS) are honored.

Historically, the usage of AC_OUTPUT was somewhat different. See Obsolete Macros, for a description of the arguments that AC_OUTPUT used to support.

If you run make on subdirectories, you should run it using the make variable MAKE. Most versions of make set MAKE to the name of the make program plus any options it was given. (But many do not include in it the values of any variables set on the command line, so those are not passed on automatically.) Some old versions of make do not set this variable. The following macro allows you to use it even with those versions.

AC_PROG_MAKE_SET

Macro

If make predefines the variable MAKE, define output variable SET_MAKE to be empty. Otherwise, define SET_MAKE to contain MAKE=make. Calls AC_SUBST for SET_MAKE.

To use this macro, place a line like this in each Makefile.in that runs MAKE on other directories:

@SET_MAKE@