Re: Sane way of making installation paths available to C ?

[Akim Demaille]

| Is there some relatively sane way of making stuff like $bindir path
| available to C programs (via config.h preferably) ? I'm entirely sure
| I'm not the only one who's had to solve this problem a number of times.
| 
| Currently we have (hold your bags nearby) :
| 
| if test "$prefix" = "NONE"; then
|         prefix="$ac_default_prefix"
| fi
| if test "$exec_prefix" = "NONE"; then
|         exec_prefix="$prefix"
| fi
| if test "$bindir" = "NONE"; then
|         bindir="$prefix/bin"
| fi
| if test "$datadir" = "NONE"; then
|         datadir="$prefix/share"
| fi
| OP_DATADIR=`eval echo "$datadir/$PACKAGE/"`
| OP_BINDIR=`eval echo "$bindir/"`
| AC_SUBST(OP_BINDIR)
| AC_SUBST(OP_DATADIR)
| 
| into a version.h file.

See Autoconf's documentation.  Amusingly someone spent some time
making an FAQ.

http://www.gnu.org/manual/autoconf/html_chapter/autoconf_17.html#SEC179