set LD_LIBRARY_PATH when invoking block extroot from temporary overlay

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

diff --git a/libfstools/extroot.c b/libfstools/extroot.c
index a8c10288370495e3084c229b990e809e663134a9..9a05c494ad4a05cfd583f0274c0a84a82b5f1dc5 100644 (file)
--- a/libfstools/extroot.c
+++ b/libfstools/extroot.c
@@ -26,6 +26,7 @@ char const *extroot_prefix = NULL;
 
 int mount_extroot(void)
 {
+       char ldlib_path[32];
        char block_path[32];
        char kmod_loader[64];
        struct stat s;
@@ -34,6 +35,7 @@ int mount_extroot(void)
        if (!extroot_prefix)
                return -1;
 
+       sprintf(ldlib_path, "%s/lib", extroot_prefix);
        sprintf(block_path, "%s/sbin/block", extroot_prefix);
 
        if (stat(block_path, &s))
@@ -45,6 +47,7 @@ int mount_extroot(void)
        pid = fork();
        if (!pid) {
                mkdir("/tmp/extroot", 0755);
+               setenv("LD_LIBRARY_PATH", ldlib_path, 1);
                execl(block_path, block_path, "extroot", NULL);
                exit(-1);
        } else if (pid > 0) {