diff --git a/.gitignore b/.gitignore
index 6270eeb..0b496ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@
 /lib
 /tmp
 /out
+.DS_Store*
diff --git a/config/Makefile.darwin b/config/Makefile.darwin
index 7a2d01e..031356d 100644
--- a/config/Makefile.darwin
+++ b/config/Makefile.darwin
@@ -15,7 +15,7 @@ endif
 LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
-POPT = -O2
+POPT = -Os
 CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
diff --git a/config/Makefile.darwin-ppc b/config/Makefile.darwin-ppc
index 6ffbfab..a221ede 100644
--- a/config/Makefile.darwin-ppc
+++ b/config/Makefile.darwin-ppc
@@ -14,7 +14,7 @@ endif
 LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
-POPT = -O2
+POPT = -Os
 CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
diff --git a/config/Makefile.darwin-universal b/config/Makefile.darwin-universal
index 120bf92..c485b9f 100644
--- a/config/Makefile.darwin-universal
+++ b/config/Makefile.darwin-universal
@@ -17,7 +17,7 @@ LDFLAGS.GL = -framework OpenGL
 endif
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
-POPT = -O2
+POPT = -Os
 CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib
diff --git a/config/Makefile.darwin-x86_64 b/config/Makefile.darwin-x86_64
index 274036a..e5896a1 100644
--- a/config/Makefile.darwin-x86_64
+++ b/config/Makefile.darwin-x86_64
@@ -14,7 +14,7 @@ endif
 LDFLAGS.STATIC =
 LDFLAGS.DYNAMIC =
 WARN = -Wall -W
-POPT = -O2
+POPT = -Os
 CFLAGS.EXTRA += -fPIC
 BIN.SUFFIX =
 LIB.SONAME    = lib$(NAME).$(SO_MAJOR).dylib