diff --git a/src/blas.mk b/src/blas.mk
index ee09b593..1f588ec9 100644
--- a/src/blas.mk
+++ b/src/blas.mk
@@ -22,5 +22,5 @@ define $(PKG)_BUILD
     cd '$(1)' && $(TARGET)-ar cr libblas.a *.o
 
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libblas.a' '$(PREFIX)/$(TARGET)/lib/'
+    $(INSTALL) -m644 '$(1)/libblas.a' '$(PREFIX)/$(TARGET)/lib/'
 endef
diff --git a/src/bzip2.mk b/src/bzip2.mk
index 991b50cf..d27c75c9 100644
--- a/src/bzip2.mk
+++ b/src/bzip2.mk
@@ -28,7 +28,7 @@ define $(PKG)_BUILD
         AR='$(TARGET)-ar' \
         RANLIB='$(TARGET)-ranlib'
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libbz2.a' '$(PREFIX)/$(TARGET)/lib/'
+    $(INSTALL) -m644 '$(1)/libbz2.a' '$(PREFIX)/$(TARGET)/lib/'
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/include'
-    $(INSTALL) -m664 '$(1)/bzlib.h' '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/bzlib.h' '$(PREFIX)/$(TARGET)/include/'
 endef
diff --git a/src/cblas.mk b/src/cblas.mk
index b4b1f032..e049ace0 100644
--- a/src/cblas.mk
+++ b/src/cblas.mk
@@ -26,8 +26,8 @@ define $(PKG)_BUILD
     cd '$(1)' && $(TARGET)-ar cr libcblas.a src/*.o
 
     $(INSTALL) -d                           '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libcblas.a'      '$(PREFIX)/$(TARGET)/lib/'
+    $(INSTALL) -m644 '$(1)/libcblas.a'      '$(PREFIX)/$(TARGET)/lib/'
     $(INSTALL) -d                           '$(PREFIX)/$(TARGET)/include'
-    $(INSTALL) -m664 '$(1)/src/cblas.h'     '$(PREFIX)/$(TARGET)/include/'
-    $(INSTALL) -m664 '$(1)/src/cblas_f77.h' '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/src/cblas.h'     '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/src/cblas_f77.h' '$(PREFIX)/$(TARGET)/include/'
 endef
diff --git a/src/lapack.mk b/src/lapack.mk
index 24fa70a4..23a92e07 100644
--- a/src/lapack.mk
+++ b/src/lapack.mk
@@ -27,5 +27,5 @@ define $(PKG)_BUILD
 
     $(MAKE) -C '$(1)/SRC' -j '$(JOBS)'
     $(INSTALL) -d                            '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/lapack_MINGW32.a' '$(PREFIX)/$(TARGET)/lib/liblapack.a'
+    $(INSTALL) -m644 '$(1)/lapack_MINGW32.a' '$(PREFIX)/$(TARGET)/lib/liblapack.a'
 endef
diff --git a/src/libusb.mk b/src/libusb.mk
index 31ec6351..80cea066 100644
--- a/src/libusb.mk
+++ b/src/libusb.mk
@@ -33,8 +33,8 @@ define $(PKG)_BUILD
         --output-lib libusb.a
 
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/include'
-    $(INSTALL) -m664 '$(1)/src/usb.h' '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/src/usb.h' '$(PREFIX)/$(TARGET)/include/'
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libusb.a'  '$(PREFIX)/$(TARGET)/lib/'
-    $(INSTALL) -m664 '$(1)/libusbd.a' '$(PREFIX)/$(TARGET)/lib/'
+    $(INSTALL) -m644 '$(1)/libusb.a'  '$(PREFIX)/$(TARGET)/lib/'
+    $(INSTALL) -m644 '$(1)/libusbd.a' '$(PREFIX)/$(TARGET)/lib/'
 endef
diff --git a/src/metis.mk b/src/metis.mk
index 2a79b4de..8e15f910 100644
--- a/src/metis.mk
+++ b/src/metis.mk
@@ -24,12 +24,12 @@ define $(PKG)_BUILD
     $(SED) -i 's,ranlib,$(TARGET)-ranlib,' '$(1)/Makefile.in'
     $(MAKE) -C '$(1)/Lib' -j '$(JOBS)'
     $(INSTALL) -d                        '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libmetis.a'   '$(PREFIX)/$(TARGET)/lib/libmetis.a'
+    $(INSTALL) -m644 '$(1)/libmetis.a'   '$(PREFIX)/$(TARGET)/lib/libmetis.a'
     $(INSTALL) -d                        '$(PREFIX)/$(TARGET)/include/metis/Lib'
-    $(INSTALL) -m664 '$(1)/Lib/metis.h'  '$(PREFIX)/$(TARGET)/include/metis/Lib/metis.h'
-    $(INSTALL) -m664 '$(1)/Lib/defs.h'   '$(PREFIX)/$(TARGET)/include/metis/Lib/defs.h'
-    $(INSTALL) -m664 '$(1)/Lib/struct.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/struct.h'
-    $(INSTALL) -m664 '$(1)/Lib/macros.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/macros.h'
-    $(INSTALL) -m664 '$(1)/Lib/rename.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/rename.h'
-    $(INSTALL) -m664 '$(1)/Lib/proto.h'  '$(PREFIX)/$(TARGET)/include/metis/Lib/proto.h'
+    $(INSTALL) -m644 '$(1)/Lib/metis.h'  '$(PREFIX)/$(TARGET)/include/metis/Lib/metis.h'
+    $(INSTALL) -m644 '$(1)/Lib/defs.h'   '$(PREFIX)/$(TARGET)/include/metis/Lib/defs.h'
+    $(INSTALL) -m644 '$(1)/Lib/struct.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/struct.h'
+    $(INSTALL) -m644 '$(1)/Lib/macros.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/macros.h'
+    $(INSTALL) -m644 '$(1)/Lib/rename.h' '$(PREFIX)/$(TARGET)/include/metis/Lib/rename.h'
+    $(INSTALL) -m644 '$(1)/Lib/proto.h'  '$(PREFIX)/$(TARGET)/include/metis/Lib/proto.h'
 endef
diff --git a/src/postgresql.mk b/src/postgresql.mk
index 05c9c33d..10aaa34b 100644
--- a/src/postgresql.mk
+++ b/src/postgresql.mk
@@ -54,8 +54,8 @@ define $(PKG)_BUILD
     $(MAKE) -C '$(1)'/src/interfaces/libpq -j '$(JOBS)' install haslibarule= shlib=
     $(MAKE) -C '$(1)'/src/port             -j '$(JOBS)'         haslibarule= shlib=
     $(MAKE) -C '$(1)'/src/bin/psql         -j '$(JOBS)' install haslibarule= shlib=
-    $(INSTALL) -m664 '$(1)/src/include/pg_config.h'    '$(PREFIX)/$(TARGET)/include/'
-    $(INSTALL) -m664 '$(1)/src/include/postgres_ext.h' '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/src/include/pg_config.h'    '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/src/include/postgres_ext.h' '$(PREFIX)/$(TARGET)/include/'
     # Build a native pg_config.
     cd '$(1)' && $(call UNPACK_PKG_ARCHIVE,postgresql)
     mv '$(1)/$(postgresql_SUBDIR)' '$(1).native'
diff --git a/src/pthreads.mk b/src/pthreads.mk
index 813a2298..4c62ed8d 100644
--- a/src/pthreads.mk
+++ b/src/pthreads.mk
@@ -26,11 +26,11 @@ define $(PKG)_BUILD
     $(SED) -i 's,#include "config.h",,'      '$(1)/pthread.h'
     $(MAKE) -C '$(1)' -j 1 GC-static CROSS='$(TARGET)-'
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib'
-    $(INSTALL) -m664 '$(1)/libpthreadGC2.a' '$(PREFIX)/$(TARGET)/lib/libpthread.a'
+    $(INSTALL) -m644 '$(1)/libpthreadGC2.a' '$(PREFIX)/$(TARGET)/lib/libpthread.a'
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/include'
-    $(INSTALL) -m664 '$(1)/pthread.h'   '$(PREFIX)/$(TARGET)/include/'
-    $(INSTALL) -m664 '$(1)/sched.h'     '$(PREFIX)/$(TARGET)/include/'
-    $(INSTALL) -m664 '$(1)/semaphore.h' '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/pthread.h'   '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/sched.h'     '$(PREFIX)/$(TARGET)/include/'
+    $(INSTALL) -m644 '$(1)/semaphore.h' '$(PREFIX)/$(TARGET)/include/'
 
     '$(TARGET)-gcc' \
         -W -Wall -Werror -ansi -pedantic \
diff --git a/src/suitesparse.mk b/src/suitesparse.mk
index f445e3d2..a9d958fb 100644
--- a/src/suitesparse.mk
+++ b/src/suitesparse.mk
@@ -43,20 +43,20 @@ define $(PKG)_BUILD
     # install library files
     $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib'
     find '$(1)' -name '*.a' \
-        -exec $(INSTALL) -m664 {} '$(PREFIX)/$(TARGET)/lib/' \;
+        -exec $(INSTALL) -m644 {} '$(PREFIX)/$(TARGET)/lib/' \;
 
     # install include files
     $(INSTALL) -d                                '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/AMD/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/BTF/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/CAMD/Include/'*.h     '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/CCOLAMD/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/CHOLMOD/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/COLAMD/Include/'*.h   '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/CXSparse/Include/'*.h '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/KLU/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/LDL/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/SPQR/Include/'*       '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/UFconfig/'*.h         '$(PREFIX)/$(TARGET)/include/suitesparse/'
-    $(INSTALL) -m664 '$(1)/UMFPACK/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/AMD/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/BTF/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/CAMD/Include/'*.h     '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/CCOLAMD/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/CHOLMOD/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/COLAMD/Include/'*.h   '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/CXSparse/Include/'*.h '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/KLU/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/LDL/Include/'*.h      '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/SPQR/Include/'*       '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/UFconfig/'*.h         '$(PREFIX)/$(TARGET)/include/suitesparse/'
+    $(INSTALL) -m644 '$(1)/UMFPACK/Include/'*.h  '$(PREFIX)/$(TARGET)/include/suitesparse/'
 endef