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Handle platforms that don't support linking to a symlink

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E.g. Darwin doesn't allow this.
This commit is contained in:
Eelco Dolstra 2012-07-23 18:42:18 -04:00
parent fd63c8bfcd
commit e98c029717
2 changed files with 19 additions and 2 deletions
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12
configure.ac
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@ -120,6 +120,18 @@ AC_CHECK_HEADERS([sys/mount.h], [], [],
AC_CHECK_FUNCS([lutimes])
# Check whether the store optimiser can optimise symlinks.
AC_MSG_CHECKING([whether it is possible to create a link to a symlink])
ln -s bla tmp_link
if ln tmp_link tmp_link2 2> /dev/null; then
AC_MSG_RESULT(yes)
AC_DEFINE(CAN_LINK_SYMLINK, 1, [Whether link() works on symlinks.])
else
AC_MSG_RESULT(no)
fi
rm -f tmp_link tmp_link2
# Check for <locale>.
AC_LANG_PUSH(C++)
AC_CHECK_HEADERS([locale])