Revert "popen does NOT require /bin/sh in a subchroot"

This reverts commit 9558639d8009483fbf422b138d020745986f82f1.

This change was wrong, popen does require /bin/sh in a subchroot.

1) pacman -S lilo -r root

Notice no error

2) rm root/bin/sh ; pacman -S lilo -r root

Notice an error :
error: scriptlet failed to execute correctly

Actually, we already get an explicit error here, when popen is run, so there
is no need to check for bin/sh explicitely.

Besides this check was problematic in some cases. For example, bash itself
has a scriptlet, but only post_install and post_upgrade, no pre_install and
pre_upgrade. However, since bash has a scriptlet, runscriptlet will also be
called before bash is installed. It won't do anything since the scriptlet
has no pre_install function. But if we keep the check, we will still get
"error : no /bin/sh".

Conflicts:

	lib/libalpm/trans.c

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 0 insertions, 7 deletions

diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index ae01e3fa..243cdc10 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -443,13 +443,6 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
 		return(0);
 	}
 
-	/* NOTE: popen will use the PARENT's /bin/sh, not the chroot's */
-	if(access("/bin/sh", X_OK)) {
-		/* not found */
-		_alpm_log(PM_LOG_ERROR, _("No /bin/sh in parent environment, aborting scriptlet\n"));
-		return(0);
-	}
-
 	/* creates a directory in $root/tmp/ for copying/extracting the scriptlet */
 	snprintf(tmpdir, PATH_MAX, "%stmp/", root);
 	if(access(tmpdir, F_OK) != 0) {