configure: Check for insmod.static and fail if not present.

This is not packaged on Debian/Ubuntu, but we require it.  Fail
with a useful error message if it is not available.

diff --git a/README b/README
index 6545756..b2288c0 100644 (file)
--- a/README
+++ b/README
@@ -40,6 +40,11 @@ Requirements
   /sbin/mke2fs
     - These are part of e2fsprogs.
 
+  /sbin/insmod.static
+    - This is part of module-init-tools.  Note that Debian does NOT
+      package this, you have to build it yourself (or copy the file
+      from a Fedora machine which also works ...)
+
 Optional
 --------
 (but you will need a package manager for your Linux distro)

diff --git a/configure.ac b/configure.ac
index d1b334d..21dd340 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -64,7 +64,21 @@ dnl For Debian handler.
 AC_CHECK_PROG(APTITUDE,[aptitude],[aptitude],[no])
 AC_CHECK_PROG(DPKG,[dpkg],[dpkg],[no])
 
-dnl Required e2fsprogs, libs.
+dnl Required programs, libraries.
+AC_PATH_PROG([INSMODSTATIC],[insmod.static],[no])
+if test "x$INSMODSTATIC" = "xno" ; then
+  AC_MSG_FAILURE([insmod.static program not found
+
+Is /sbin in your current path?
+
+Note that Debian/Ubuntu do not package this file from module-init-tools.
+Sorry, please fix your distribution.  In the meantime you can copy
+/sbin/insmod.static from a Fedora machine.
+])
+fi
+AC_DEFINE_UNQUOTED([INSMODSTATIC],["$INSMODSTATIC"],
+  [Full path to the insmod.static program.])
+
 AC_PATH_PROG([MKE2FS],[mke2fs],[no])
 if test "x$MKE2FS" = "xno" ; then
   AC_MSG_FAILURE([mke2fs program not found (is /sbin in your current path?)])

diff --git a/helper/ext2initrd.c b/helper/ext2initrd.c
index c981232..f10aef2 100644 (file)
--- a/helper/ext2initrd.c
+++ b/helper/ext2initrd.c
@@ -144,12 +144,12 @@ ext2_make_initrd (const char *modpath, const char *initrd)
   free_module_deps ();
 
   /* Copy in insmod static binary. */
-  cmd = xasprintf ("cp /sbin/insmod.static %s", dir);
+  cmd = xasprintf ("cp %s %s", INSMODSTATIC, dir);
   if (verbose >= 2) fprintf (stderr, "%s\n", cmd);
   r = system (cmd);
   if (r == -1 || WEXITSTATUS (r) != 0)
     error (EXIT_FAILURE, 0,
-           "ext2_make_initrd: copy /sbin/insmod.static failed");
+           "ext2_make_initrd: copy %s failed", INSMODSTATIC);
   free (cmd);
 
   /* Copy in the init program, linked into this program as a data blob. */