Ignore "AC_PROG_LEX invoked multiple times"

diff --git a/build/build2.mk b/build/build2.mk
index 528f1de35129e37baa6009990a1813ec82de5d2f..196df84fd2434491a655f71926e3e761f77aee61 100644 (file)
--- a/build/build2.mk
+++ b/build/build2.mk
@@ -60,7 +60,7 @@ $(makefile_in_files): $(makefile_am_files) aclocal.m4 configure.in $(config_m4_f
 aclocal.m4: configure.in acinclude.m4 dynlib.m4
        aclocal 2>&1 | $(SUPPRESS_WARNINGS)
 
-SUPPRESS_WARNINGS = (egrep -v '(warning: AC_TRY_RUN called without default to allow cross compiling|AC_PROG_CXXCPP was called before AC_PROG_CXX|.*AM_PROG_LEX.*|defined in acinclude.m4 but never used)'||true)
+SUPPRESS_WARNINGS = (egrep -v '(AC_TRY_RUN called without default to allow cross compiling|AC_PROG_CXXCPP was called before AC_PROG_CXX|.*AM_PROG_LEX.*|defined in acinclude.m4 but never used|AC_PROG_LEX invoked multiple times)'||true)
 
 $(config_h_in): configure acconfig.h
 # explicitly remove target since autoheader does not seem to work