--- a/snesfilter/Makefile	
+++ a/snesfilter/Makefile	
@@ -5,12 +5,12 @@ include nall/qt/Makefile
 
 c     := $(compiler) -std=gnu99
 cpp   := $(subst cc,++,$(compiler)) -std=gnu++0x
-flags := -O3 -I. -Iobj -fomit-frame-pointer $(qtinc)
+flags := $(CXXFLAGS) -I. -Iobj -fomit-frame-pointer $(qtinc)
 link  :=
 
 ifeq ($(platform),x)
   flags := -fPIC -fopenmp $(flags)
-  link += -s -fopenmp -lpthread -lgomp
+  link += -fopenmp -lpthread -lgomp
 else ifeq ($(platform),osx)
   flags := -fPIC -fopenmp $(flags)
   link += -fopenmp -lpthread -lgomp
@@ -73,9 +73,8 @@ endif
 
 install:
 ifeq ($(platform),x)
-	install -D -m 755 libsnesfilter.a $(DESTDIR)$(prefix)/lib
-	install -D -m 755 libsnesfilter.so $(DESTDIR)$(prefix)/lib
-	ldconfig -n $(DESTDIR)$(prefix)/lib
+	install -D -m 755 libsnesfilter.a $(DESTDIR)$(prefix)/lib/libsnesfilter.a
+	install -D -m 755 libsnesfilter.so $(DESTDIR)$(prefix)/lib/libsnesfilter.so
 else ifeq ($(platform),osx)
 	cp libsnesfilter.dylib /usr/local/lib/libsnesfilter.dylib
 endif
--- a/snesreader/Makefile	
+++ a/snesreader/Makefile	
@@ -5,12 +5,11 @@ include nall/qt/Makefile
 
 c     := $(compiler) -std=gnu99
 cpp   := $(subst cc,++,$(compiler)) -std=gnu++0x
-flags := -O3 -I. -Iobj -fomit-frame-pointer
+flags := $(CXXFLAGS) -I. -Iobj -fomit-frame-pointer
 link  :=
 
 ifeq ($(platform),x)
   flags := -fPIC $(flags)
-  link += -s
 else ifeq ($(platform),osx)
   flags := -fPIC $(flags)
 endif
@@ -171,9 +170,8 @@ endif
 
 install:
 ifeq ($(platform),x)
-	install -D -m 755 libsnesreader.a $(DESTDIR)$(prefix)/lib
-	install -D -m 755 libsnesreader.so $(DESTDIR)$(prefix)/lib
-	ldconfig -n $(DESTDIR)$(prefix)/lib
+	install -D -m 755 libsnesreader.a $(DESTDIR)$(prefix)/lib/libsnesreader.a
+	install -D -m 755 libsnesreader.so $(DESTDIR)$(prefix)/lib/libsnesreader.so
 else ifeq ($(platform),osx)
 	cp libsnesreader.dylib /usr/local/lib/libsnesreader.dylib
 endif
--- a/src/Makefile	
+++ a/src/Makefile	
@@ -4,7 +4,7 @@ ui := ui_qt
 # compiler
 c       := $(compiler) -std=gnu99
 cpp     := $(subst cc,++,$(compiler)) -std=gnu++0x
-flags   := -O3 -fomit-frame-pointer -I.
+flags   := $(CXXFLAGS) -fomit-frame-pointer -I.
 link    :=
 objects :=
 
@@ -17,7 +17,7 @@ objects :=
 
 # platform
 ifeq ($(platform),x)
-  link += -s -ldl -lX11 -lXext
+  link += -ldl -lX11 -lXext
 else ifeq ($(platform),osx)
 else ifeq ($(platform),win)
   link += -mwindows -mthreads
@@ -60,8 +60,8 @@ endif
 install:
 ifeq ($(platform),x)
 	install -D -m 755 ../bsnes $(DESTDIR)$(prefix)/bin/bsnes
-	install -D -m 644 data/bsnes.png $(DESTDIR)$(prefix)/share/pixmaps/bsnes.png
-	install -D -m 644 data/bsnes.desktop $(DESTDIR)$(prefix)/share/applications/bsnes.desktop
+	install -D -m 644 data/bsnes.png $(DESTDIR)/usr/share/pixmaps/bsnes.png
+	install -D -m 644 data/bsnes.desktop $(DESTDIR)/usr/share/applications/bsnes.desktop
 endif
 
 uninstall:
--- a/supergameboy/Makefile	
+++ a/supergameboy/Makefile	
@@ -2,14 +2,13 @@ include nall/Makefile
 
 c     := $(compiler) -std=gnu99
 cpp   := $(subst cc,++,$(compiler)) -std=gnu++0x
-flags := -O3 -fomit-frame-pointer -I. -Icommon -Ilibgambatte/include -Ilibgambatte/src
+flags := $(CXXFLAGS) -fomit-frame-pointer -I. -Icommon -Ilibgambatte/include -Ilibgambatte/src
 link  :=
 
 ifeq ($(platform),osx)
   flags := -fPIC $(flags)
 else ifeq ($(platform),x)
   flags := -fPIC $(flags)
-  link += -s
 endif
 
 objects := supergameboy
@@ -113,9 +112,8 @@ install:
 ifeq ($(platform),osx)
 	cp libsupergameboy.dylib /usr/local/lib/libsupergameboy.dylib
 else
-	install -D -m 755 libsupergameboy.a $(DESTDIR)$(prefix)/lib
-	install -D -m 755 libsupergameboy.so $(DESTDIR)$(prefix)/lib
-	ldconfig -n $(DESTDIR)$(prefix)/lib
+	install -D -m 755 libsupergameboy.a $(DESTDIR)$(prefix)/lib/libsupergameboy.a
+	install -D -m 755 libsupergameboy.so $(DESTDIR)$(prefix)/lib/libsupergameboy.so
 endif
 
 clean: