gitignore some build products

diff --git a/libs/.gitignore b/libs/.gitignore
index 48bfc1f814e0f0b8039355705d5164bffb7547b4..786ae26637d0e55410f4a234530a15a815ad3d15 100644 (file)
--- a/libs/.gitignore
+++ b/libs/.gitignore
@@ -523,6 +523,11 @@ missing
 /spandsp/doc/Makefile.in
 /spandsp/Makefile
 /spandsp/Makefile.in
+/spandsp/m4/libtool.m4
+/spandsp/m4/ltoptions.m4
+/spandsp/m4/ltsugar.m4
+/spandsp/m4/ltversion.m4
+/spandsp/m4/lt~obsolete.m4
 /spandsp/spandsp-sim/Makefile
 /spandsp/spandsp-sim/Makefile.in
 /spandsp/src/at_interpreter_dictionary.h