Move ROOTDIR definition into config.h

This was the only variable of its kind when a define was done on the
compiler command line.  Move it into config.h instead.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

configure.ac

@@ -335,6 +335,7 @@ AM_CONDITIONAL(USE_GIT_VERSION, test "x$usegitver" = "xyes")
 
 # Set root directory
 AC_SUBST(ROOTDIR)
+AC_DEFINE_UNQUOTED([ROOTDIR], "$ROOTDIR", [The location of the root operating directory])
 # Set package file extension
 AC_SUBST(PKGEXT)
 AC_DEFINE_UNQUOTED([PKGEXT], "$PKGEXT", [The file extension used by pacman packages])

src/pacman/Makefile.am

@@ -11,7 +11,6 @@ bin_PROGRAMS = pacman
 
 DEFS = -DLOCALEDIR=\"@localedir@\" \
        -DCONFFILE=\"$(conffile)\" \
-       -DROOTDIR=\"$(ROOTDIR)\" \
        -DDBPATH=\"$(dbpath)\" \
        -DGPGDIR=\"$(gpgdir)\" \
        -DCACHEDIR=\"$(cachedir)\" \

src/util/Makefile.am

@@ -7,7 +7,6 @@ bin_PROGRAMS = vercmp testpkg testdb cleanupdelta pacsort pactree
 
 DEFS = -DLOCALEDIR=\"@localedir@\" \
        -DCONFFILE=\"$(conffile)\" \
-       -DROOTDIR=\"$(ROOTDIR)\" \
        -DDBPATH=\"$(dbpath)\" \
        -DCACHEDIR=\"$(cachedir)\" \
        @DEFS@