diff --git a/Makefile.sharedlibrary b/Makefile.sharedlibrary
index bf5c0cb..5862b4f 100644
--- a/Makefile.sharedlibrary
+++ b/Makefile.sharedlibrary
@@ -70,11 +70,11 @@ all: libduktape.$(SO_REALNAME_SUFFIX) libduktaped.$(SO_REALNAME_SUFFIX) duktape.
 # to $INSTALL_PREFIX/include on installation.
 
 libduktape.$(SO_REALNAME_SUFFIX):
-	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -Wall -Wextra -Os -Wl,$(LD_SONAME_ARG),libduktape.$(SO_SONAME_SUFFIX) \
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -Wall -Wextra -Wl,$(LD_SONAME_ARG),libduktape.$(SO_SONAME_SUFFIX) \
 		-o $@ $(DUKTAPE_SRCDIR)/duktape.c
 
 libduktaped.$(SO_REALNAME_SUFFIX):
-	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -g -Wall -Wextra -Os -Wl,$(LD_SONAME_ARG),libduktaped.$(SO_SONAME_SUFFIX) \
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -Wall -Wextra -Wl,$(LD_SONAME_ARG),libduktaped.$(SO_SONAME_SUFFIX) \
 		-o $@ $(DUKTAPE_SRCDIR)/duktape.c
 
 duktape.pc:
@@ -101,4 +101,4 @@ install: libduktape.$(SO_REALNAME_SUFFIX) libduktaped.$(SO_REALNAME_SUFFIX) dukt
 
 CCOPTS = -I./examples/cmdline
 duk:
-	$(CC) $(CCOPTS) -I$(INSTALL_PREFIX)/include -L$(INSTALL_PREFIX)$(LIBDIR) -Wall -Wextra -Os -o $@ ./examples/cmdline/duk_cmdline.c -lduktape -lm
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(CCOPTS) -I$(INSTALL_PREFIX)/include -L$(INSTALL_PREFIX)$(LIBDIR) -Wall -Wextra -o $@ ./examples/cmdline/duk_cmdline.c -lduktape -lm