--- makefile.bak	2010-07-30 12:05:21.219322050 +0200
+++ makefile	2010-07-30 12:07:19.588144344 +0200
@@ -14,7 +14,7 @@
 ifndef IGNORE_SPEED
 
 #for speed 
-CFLAGS += -O3 -funroll-loops
+CFLAGS += -funroll-loops
 
 #for size 
 #CFLAGS += -Os
@@ -53,9 +53,9 @@
 #INCPATH-The directory to install the header files for libtommath.
 #DATAPATH-The directory to install the pdf docs.
 DESTDIR=
-LIBPATH=/usr/lib
-INCPATH=/usr/include
-DATAPATH=/usr/share/doc/libtommath/pdf
+LIBPATH=${PREFIX}/lib
+INCPATH=${PREFIX}/include
+DATAPATH=${DOCSDIR}/pdf
 
 OBJECTS=bncore.o bn_mp_init.o bn_mp_clear.o bn_mp_exch.o bn_mp_grow.o bn_mp_shrink.o \
 bn_mp_clamp.o bn_mp_zero.o  bn_mp_set.o bn_mp_set_int.o bn_mp_init_size.o bn_mp_copy.o \
--- makefile.shared.bak	2010-07-30 12:05:21.219322050 +0200
+++ makefile.shared	2010-07-30 12:07:19.588144344 +0200
@@ -14,7 +14,7 @@
 ifndef IGNORE_SPEED
 
 #for speed 
-CFLAGS += -O3 -funroll-loops
+CFLAGS += -funroll-loops
 
 #for size 
 #CFLAGS += -Os
@@ -53,9 +53,9 @@
 #INCPATH-The directory to install the header files for libtommath.
 #DATAPATH-The directory to install the pdf docs.
 DESTDIR=
-LIBPATH=/usr/lib
-INCPATH=/usr/include
-DATAPATH=/usr/share/doc/libtommath/pdf
+LIBPATH=${PREFIX}/lib
+INCPATH=${PREFIX}/include
+DATAPATH=${DOCSDIR}/pdf
 
 OBJECTS=bncore.o bn_mp_init.o bn_mp_clear.o bn_mp_exch.o bn_mp_grow.o bn_mp_shrink.o \
 bn_mp_clamp.o bn_mp_zero.o  bn_mp_set.o bn_mp_set_int.o bn_mp_init_size.o bn_mp_copy.o \