add missing dependency

diff --git a/build/build.mk b/build/build.mk
index c23483b962ad6e2f3d8b0eec6f5dab1f9c94863a..9101b0dd40b718e15fc79f6dd47e64e16b767774 100644 (file)
--- a/build/build.mk
+++ b/build/build.mk
@@ -33,7 +33,7 @@ generated_lists:
        @echo makefile_am_files = Zend/Makefile.am \
                TSRM/Makefile.am > $@
        @echo config_h_files = Zend/acconfig.h TSRM/acconfig.h >> $@
-       @echo config_m4_files = Zend/Zend.m4 TSRM/tsrm.m4 \
+       @echo config_m4_files = Zend/Zend.m4 TSRM/tsrm.m4 TSRM/threads.m4 \
                Zend/acinclude.m4 ext/*/config*.m4 sapi/*/config.m4 >> $@
 
 $(STAMP): build/buildcheck.sh