diff --git a/browser/.gitignore b/browser/.gitignore
index a92cb0811..09152ddd4 100644
--- a/browser/.gitignore
+++ b/browser/.gitignore
@@ -43,6 +43,7 @@ mdb.init
 *.pdb
 libmer_browser.lib
 libmer_browser.dylib
+libmer_browser.so
 *.*_date
 Mercury.modules
 browse_test
diff --git a/library/.gitignore b/library/.gitignore
index e56697039..b4b2b8a37 100644
--- a/library/.gitignore
+++ b/library/.gitignore
@@ -28,8 +28,6 @@
 *.*_date
 mercury.*.h
 sicstus_compile sicstus_saved_state
-io.h std_util.h exception.h
-library.nu.nl
 mer_std.init
 mer_std.dep
 mer_std.dv
@@ -39,6 +37,7 @@ library.dv
 Mercury
 libmer_std.lib
 libmer_std.dylib
+libmer_std.so
 *.mh
 *.mih
 *.java
diff --git a/mdbcomp/.gitignore b/mdbcomp/.gitignore
index 0d9e54f3e..ef07f83f3 100644
--- a/mdbcomp/.gitignore
+++ b/mdbcomp/.gitignore
@@ -24,6 +24,8 @@ mer_mdbcomp
 mer_mdbcomp.dep
 mer_mdbcomp.jar
 libmer_mdbcomp.a
+libmer_mdbcomp.lib
+libmer_mdbcomp.so
 Mercury
 Mercury.modules
 MDBCOMP_FLAGS
diff --git a/mfilterjavac/.gitignore b/mfilterjavac/.gitignore
new file mode 100644
index 000000000..379919cd4
--- /dev/null
+++ b/mfilterjavac/.gitignore
@@ -0,0 +1,11 @@
+MFILTERJAVAC_FLAGS
+mfilterjavac
+*.c
+*.c_date
+*.d
+*.dep
+*.dv
+*.mh
+*.o
+*.err
+*.exe
diff --git a/runtime/.gitignore b/runtime/.gitignore
index a0025d136..9dcebb98b 100644
--- a/runtime/.gitignore
+++ b/runtime/.gitignore
@@ -7,6 +7,7 @@ mercury_conf.h.date
 libmer_rt.a
 libmer_rt.lib
 libmer_rt.dylib
+libmer_rt.so
 mercury_profiling_builtin.c
 mercury_profiling_builtin.h
 mercury_dotnet.cs
diff --git a/ssdb/.gitignore b/ssdb/.gitignore
index b1b0f645e..f7b82fcfc 100644
--- a/ssdb/.gitignore
+++ b/ssdb/.gitignore
@@ -20,6 +20,7 @@ SSDB_FLAGS
 *.o
 *.opt
 *.optdate
+*.so
 *.prof
 libmer_ssdb.a
 mer_ssdb.init
diff --git a/trace/.gitignore b/trace/.gitignore
index e15cf2822..05c61dd86 100644
--- a/trace/.gitignore
+++ b/trace/.gitignore
@@ -5,9 +5,11 @@
 libmer_trace.a
 libmer_eventspec.a
 libmer_trace.lib
-libmer_trace.dylib
 libmer_eventspec.lib
+libmer_trace.dylib
 libmer_eventspec.dylib
+libmer_trace.so
+libmer_eventspec.so
 mercury_event_parser.c
 mercury_event_parser.h
 mercury_event_parser.output