Check mountpoint read-only status when checking space

This is a bit of a stopgap solution for the problem, but an easier one than
revamping the file conflict checking code to support the same stuff. Using
some more gross autoconf magic, figure out which struct field we need to
look at to determine read-only status and store that on our mountpoint
struct. If we find out we needed this partition after calculating size
requirements, then toss an error.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 47d60938..1039bba1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -194,6 +194,10 @@ AC_CHECK_FUNCS([geteuid getmntinfo realpath regcomp strcasecmp \
                 wcwidth uname])
 # For the diskspace code
 FS_STATS_TYPE
+AC_CHECK_MEMBERS([struct statvfs.f_flag],,,[[#include <sys/statvfs.h>]])
+AC_CHECK_MEMBERS([struct statfs.f_flags],,,[[#include <sys/param.h>
+                  #include <sys/mount.h>]])
+
 # Enable large file support if available
 AC_SYS_LARGEFILE