Add a default cachedir if one wasn't specified

Use the default cachedir (specified at compile time) if one wasn't specified
on the command line or in the config file.

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

src/pacman/Makefile.am

@@ -1,6 +1,7 @@
 # paths set at make time
 conffile  = ${sysconfdir}/pacman.conf
 dbpath    = ${localstatedir}/lib/pacman/
+cachedir  = ${localstatedir}/cache/pacman/pkg/
 
 bin_PROGRAMS = pacman pacman.static
 
@@ -8,6 +9,7 @@ DEFS = -DLOCALEDIR=\"@localedir@\" \
        -DCONFFILE=\"$(conffile)\" \
        -DROOTDIR=\"$(ROOTDIR)\" \
        -DDBPATH=\"$(dbpath)\" \
+       -DCACHEDIR=\"$(cachedir)\" \
        @DEFS@
 INCLUDES = -I$(top_srcdir)/lib/libalpm
 

src/pacman/pacman.c

@@ -767,6 +767,11 @@ int main(int argc, char *argv[])
 		cleanup(ret);
 	}
 
+	/* add a default cachedir if one wasn't specified */
+	if(alpm_option_get_cachedirs() == NULL) {
+		alpm_option_add_cachedir(CACHEDIR);
+	}
+
 #if defined(HAVE_GETEUID)
 	/* check if we have sufficient permission for the requested operation */
 	if(myuid > 0) {