lzo: fix host-lzo build failure when config cache is filled

When the configuration cache has been filled with a value for
ac_cv_host, host-lzo fails to detect the target system name. This is
due to misbehaving code in the ./configure script. Therefore, we need
to autoreconf the package, which in turn requires :

 * a little fix to the configure.ac file
 * a little fix to src/Makefile.am
 * an extraction of important parts of aclocal.m4 into acinclude.m4

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/package/lzo/lzo-2.03-fix-configure-ac.patch b/package/lzo/lzo-2.03-fix-configure-ac.patch
new file mode 100644
index 000000000..26aece7b4
--- /dev/null
+++ b/package/lzo/lzo-2.03-fix-configure-ac.patch
@@ -0,0 +1,21 @@
+_AC_SRCPATHS doesn't exist in autoconf, _AC_SRCDIRS should be used
+instead according to many reports found by Google.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ configure.ac |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: lzo-2.03/configure.ac
+===================================================================
+--- lzo-2.03.orig/configure.ac
++++ lzo-2.03/configure.ac
+@@ -48,7 +48,7 @@
+ AM_MAINTAINER_MODE
+ 
+ if test -z "$ac_abs_top_srcdir"; then
+-    _AC_SRCPATHS(.)
++    _AC_SRCDIRS(.)
+ fi
+ if test -r .Conf.settings1; then
+     . ./.Conf.settings1