How To Use aclocal Command In Linux

In Linux platforms, aclocal command is used for generating aclocal.m4 files from file. This command when executed, scans the macro definitions in .m4 files in default directory path at /usr/share/aclocal, and also within a file named acinclude.m4. Later, it also scans for the macros used in file, after which the command generates an acloal.m4 file that includes definitions of all m4 macros.


aclocal [, OPTION/]... [, SRCDIR/]

Available Options To Use ‘aclocal’ command

  • -acdir=dir: used for searching macro files in a specified directory named dir despite the default directory
  • -help: displays the help message and exits
  • -I Directory: adds a defined directory to the list of directories searched for .m4 files
  • -output=File: saves the output of the command within a specified File instead if aclocal.m4 file
  • -system-acdir-dir: shows the folder having third party system wide files
  • -diff: allows users to run the command diff on m4 files which might be altered
  • -verbose: prints the name of files it checks
  • -print-ac-dir: prints the directory name that is to be searched and exits
  • -force: updates the output files
  • -dry-run: pretends to update the files
  • -version: displays version and exits
  • -W or -warnings: displays the warning’s falling in the category (The warning categories includes syntax, unsupported, all, no-category, none, and error.)