Info Catalog automake-1.16: Subdirectories with AM_CONDITIONAL automake-1.16: Conditional Subdirectories automake-1.16: Unconfigured Subdirectories

automake-1.16: Subdirectories with AC_SUBST

 
 7.2.3 Subdirectories with ‘AC_SUBST’
 ------------------------------------
 
 Another possibility is to define ‘MAYBE_OPT’ from ‘./configure’ using
 ‘AC_SUBST’:
 
      ...
      if test "$want_opt" = yes; then
        MAYBE_OPT=opt
      else
        MAYBE_OPT=
      fi
      AC_SUBST([MAYBE_OPT])
      AC_CONFIG_FILES([Makefile src/Makefile opt/Makefile])
      ...
 
    In this case the top-level ‘Makefile.am’ should look as follows.
 
      SUBDIRS = src $(MAYBE_OPT)
      DIST_SUBDIRS = src opt
 
    The drawback is that since Automake cannot guess what the possible
 values of ‘MAYBE_OPT’ are, it is necessary to define ‘DIST_SUBDIRS’.
 

Info Catalog automake-1.16: Subdirectories with AM_CONDITIONAL automake-1.16: Conditional Subdirectories automake-1.16: Unconfigured Subdirectories