diff --git a/Makefile.in b/Makefile.in
index 454208642..b429603ef 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,6 +1,6 @@
 QEMU = @QEMU@ -machine accel=kvm -cpu host
 CROSSDIR = @CROSSDIR@
-JOBS = 20
+JOBS = $(shell nproc)
 
 default: linux/arch/x86/boot/bzImage
 	make PATH=$(PATH):$(CROSSDIR) -C hermit
diff --git a/hermit/usr/Makefile b/hermit/usr/Makefile
index 7c0c70c2d..207c444a0 100644
--- a/hermit/usr/Makefile
+++ b/hermit/usr/Makefile
@@ -1,7 +1,7 @@
 override TOPDIR = $(shell pwd)
 ARCH = x86
 TARGET=x86_64-hermit
-NJOBS=-j20
+NJOBS=-j$(shell nproc)
 #OMPRT=libgomp
 OMPRT=libomp
 
@@ -41,20 +41,20 @@ bootstrap: $(ARCH) $(TMP)/binutils $(TMP)/bootstrap
 $(TMP)/binutils:
 	@echo Build binutils
 	$Q$(MKDIR) $(TMP)/binutils
-	$Q$(CD) $(TMP)/binutils; $(TOPDIR)/binutils/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --disable-shared --disable-nls --disable-gdb --disable-libdecnumber --disable-readline --disable-sim --disable-libssp --enable-tls && $(MAKE) $(NJOBS) && $(MAKE) install
+	$Q$(CD) $(TMP)/binutils; $(TOPDIR)/binutils/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --disable-shared --disable-nls --disable-gdb --disable-libdecnumber --disable-readline --disable-sim --disable-libssp --enable-tls && $(MAKE) -s $(NJOBS) && $(MAKE) install
 
 
 $(TMP)/bootstrap:
 	@echo Build bootstrap compiler
 	$Q$(MKDIR) $(TMP)/bootstrap
-	$Q$(CD) $(TMP)/bootstrap; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-isl --with-tune=generic --enable-languages=c --disable-nls --disable-shared --disable-libssp --disable-libgomp --enable-threads=posix --enable-tls && $(MAKE) $(NJOBS) all-gcc && $(MAKE) install-gcc
+	$Q$(CD) $(TMP)/bootstrap; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-isl --with-tune=generic --enable-languages=c --disable-nls --disable-shared --disable-libssp --disable-libgomp --enable-threads=posix --enable-tls && $(MAKE) -s $(NJOBS) all-gcc && $(MAKE) install-gcc
 
 toolchain: $(TMP)/newlib pte $(TMP)/gcc libs headers demo
 
 $(TMP)/newlib:
 	@echo Build newlib, libpthread and libgomp
 	$Q$(MKDIR) $(TMP)/newlib
-	$Q$(CD) $(TMP)/newlib; $(TOPDIR)/newlib/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) $(OPT) && $(MAKE) $(NJOBS) && $(MAKE) install
+	$Q$(CD) $(TMP)/newlib; $(TOPDIR)/newlib/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) $(OPT) && $(MAKE) -s $(NJOBS) && $(MAKE) install
 
 pte:
 	$Q$(MAKE) TARGET=$(TARGET) CC_FOR_TARGET=$(CC_FOR_TARGET) AR_FOR_TARGET=$(AR_FOR_TARGET) CFLAGS_FOR_TARGET+="-I. -Iplatform/hermit -Iplatform/helper -Wall" -C pte depend
@@ -78,10 +78,10 @@ headers:
 $(TMP)/gcc:
 	@echo Build final gcc
 	$Q$(MKDIR) $(TMP)/gcc
-	$Q$(CD) $(TMP)/gcc; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-newlib --with-isl --with-tune=generic --enable-languages=c --disable-nls --disable-shared --disable-libssp --enable-threads=posix --disable-libgomp --enable-tls --enable-lto --disable-symvers && $(MAKE) $(NJOBS) && $(MAKE) install
+	$Q$(CD) $(TMP)/gcc; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-newlib --with-isl --with-tune=generic --enable-languages=c --disable-nls --disable-shared --disable-libssp --enable-threads=posix --disable-libgomp --enable-tls --enable-lto --disable-symvers && $(MAKE) -s $(NJOBS) && $(MAKE) install
 	$Q$(RM) $(TMP)/gcc
 	$Q$(MKDIR) $(TMP)/gcc
-	$Q$(CD) $(TMP)/gcc; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-newlib --with-isl --with-tune=generic --enable-languages=c,c++,fortran,lto --disable-nls --disable-shared --disable-libssp --enable-threads=posix --disable-libgomp --enable-tls --enable-lto --disable-symvers && $(MAKE) $(NJOBS) && $(MAKE) install
+	$Q$(CD) $(TMP)/gcc; $(TOPDIR)/gcc/configure --target=$(TARGET) --prefix=$(TOPDIR)/$(ARCH) --without-headers --with-newlib --with-isl --with-tune=generic --enable-languages=c,c++,fortran,lto --disable-nls --disable-shared --disable-libssp --enable-threads=posix --disable-libgomp --enable-tls --enable-lto --disable-symvers && $(MAKE) -s $(NJOBS) && $(MAKE) install
 
 clean:
 	@echo Cleaning toolchain