--- src/Makevars	2021-07-28 01:46:18.000000000 +0800
+++ src/Makevars	2024-12-18 21:43:21.000000000 +0800
@@ -13,8 +13,8 @@
 ##PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS) 
 ##PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)
 
-PKG_CPPFLAGS = -I../inst/include -I/usr/local/include  
-PKG_LIBS= -L/usr/local/lib -lfftw3  
+PKG_CPPFLAGS = -I../inst/include -I@PREFIX@/include  
+PKG_LIBS= -L@PREFIX@/lib -lfftw3  
 
 all: $(SHLIB)