build: Remove EXTRA_LIB_PATH
You can add extra library paths to LDFLAGS directly.
diff --git a/configure.ac b/configure.ac
index 233efa2..7dac091 100644
--- a/configure.ac
+++ b/configure.ac
@@ -146,12 +146,8 @@
LIB_DIR=`echo $libdir | $SED 's%.*/%%'`
AC_SUBST([LIB_DIR])
-dnl Cache LDFLAGS so we can add EXTRA_LIB_PATH and restore it later
+dnl Cache LDFLAGS and CPPFLAGS so we can add to them and restore later
_SAVE_LDFLAGS="$LDFLAGS"
-AC_ARG_VAR([EXTRA_LIB_PATH],[Extra -L paths for the linker])
-AC_SUBST([EXTRA_LIB_PATH])
-
-dnl Cache CPPFLAGS so we can add *_INCLUDES and restore it later
_SAVE_CPPFLAGS="$CPPFLAGS"
dnl Compiler macros