configure: check for liblas/capi/liblas.h

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@71757 15284696-431f-4ddb-bdfa-cd5b030d7da7

configure.in

@@ -850,6 +850,7 @@ else
   LIBS="$LIBS $LIBLAS_LIBS"
   CFLAGS="$CFLAGS $LIBLAS_CFLAGS"
   CPPFLAGS="$CPPFLAGS $LIBLAS_INC"
+  AC_CHECK_HEADERS(liblas/capi/liblas.h)
   AC_TRY_LINK([#include <liblas/capi/liblas.h>],[LASReader_Create("foo");],,[
   AC_TRY_LINK([#include <liblas/capi/liblas.h>],[LASReader_Create("foo");],LAS_LIBS="$LAS_LIBS",[
   AC_MSG_ERROR([*** Unable to locate libLAS library.])