autoscanto Create configure.ac
autoscan program can help you create and/or maintain a
configure.ac file for a software package.
examines source files in the directory tree rooted at a directory given
as a command line argument, or the current directory if none is given.
It searches the source files for common portability problems and creates
a file configure.scan which is a preliminary configure.ac
for that package, and checks a possibly existing configure.ac for
autoscan to create a configure.ac, you
should manually examine configure.scan before renaming it to
configure.ac; it probably needs some adjustments.
autoscan outputs a macro in the wrong order
relative to another macro, so that
autoconf produces a warning;
you need to move such macros manually. Also, if you want the package to
use a configuration header file, you must add a call to
AC_CONFIG_HEADERS (see Defining Symbols). You might
also have to change or add some
#if directives to your program in
order to make it work with Autoconf (see ifnames Invocation for
information about a program that can help with that job).
autoscan to maintain a configure.ac, simply
consider adding its suggestions. The file autoscan.log
contains detailed information on why a macro is requested.
autoscan uses several data files (installed along with Autoconf)
to determine which macros to output when it finds particular symbols in
a package’s source files. These data files all have the same format:
each line consists of a symbol, one or more blanks, and the Autoconf macro to
output if that symbol is encountered. Lines starting with ‘#’ are
autoscan accepts the following options:
Print a summary of the command line options and exit.
Print the version number of Autoconf and exit.
Print the names of the files it examines and the potentially interesting symbols it finds in them. This output can be voluminous.
Don’t remove temporary files.
Append dir to the include path. Multiple invocations accumulate.
Prepend dir to the include path. Multiple invocations accumulate.