diff --git a/build-codeblocks-project.sh b/build-codeblocks-project.sh
index 5315a7a9..be040684 100755
--- a/build-codeblocks-project.sh
+++ b/build-codeblocks-project.sh
@@ -11,7 +11,8 @@ cd codeblocks
 if [ -f 'CMakeCache.txt' ]; then rm -f 'CMakeCache.txt'; fi
 
 LANG=C
-NUMCORES=`nproc`
+NUMCORES=`lscpu -p | grep -cv '^#'`
+if [ "$NUMCORES" = '' ]; then NUMCORES=1; fi
 
 # This is for regular developers and used by our installer
 cmake -G"CodeBlocks - Unix Makefiles" -DCMAKE_INSTALL_PREFIX= -DWANT_STATIC_LIBS=ON -DCMAKE_ECLIPSE_MAKE_ARGUMENTS=-j$NUMCORES ${CURRENTDIR}
diff --git a/build-eclipse-project.sh b/build-eclipse-project.sh
index af873026..e2d6f20d 100755
--- a/build-eclipse-project.sh
+++ b/build-eclipse-project.sh
@@ -11,7 +11,8 @@ cd eclipse
 if [ -f 'CMakeCache.txt' ]; then rm -f 'CMakeCache.txt'; fi
 
 LANG=C
-NUMCORES=`nproc`
+NUMCORES=`lscpu -p | grep -cv '^#'`
+if [ "$NUMCORES" = '' ]; then NUMCORES=1; fi
 
 # This is for regular developers and used by our installer
 cmake -G"Eclipse CDT4 - Unix Makefiles" -DCMAKE_INSTALL_PREFIX= -DWANT_STATIC_LIBS=ON -DCMAKE_ECLIPSE_MAKE_ARGUMENTS=-j$NUMCORES ${CURRENTDIR}
diff --git a/build-mg-win32.sh b/build-mg-win32.sh
index e8c3a284..2468832b 100755
--- a/build-mg-win32.sh
+++ b/build-mg-win32.sh
@@ -5,7 +5,8 @@
 # Originally written by Mark Vejvoda <mark_vejvoda@hotmail.com>
 # Copyright (c) 2012 Mark Vejvoda under GNU GPL v3.0
 
-NUMCORES=`nproc`
+NUMCORES=`lscpu -p | grep -cv '^#'`
+if [ "$NUMCORES" = '' ]; then NUMCORES=1; fi
 
 #PROJECT_SOURCE_DIR="$(dirname $(readlink -f $0))"
 mkdir -p build-win32
diff --git a/build-mg.sh b/build-mg.sh
index 85fa84c8..f29748f7 100755
--- a/build-mg.sh
+++ b/build-mg.sh
@@ -5,7 +5,8 @@
 # Copyright (c) 2011 Mark Vejvoda under GNU GPL v3.0+
 
 LANG=C
-NUMCORES=`nproc`
+NUMCORES=`lscpu -p | grep -cv '^#'`
+if [ "$NUMCORES" = '' ]; then NUMCORES=1; fi
 
 mkdir -p build
 cd build
diff --git a/mk/linux/mojosetup/megaglest-installer/make.sh b/mk/linux/mojosetup/megaglest-installer/make.sh
index 1575bc0f..f5e3983c 100755
--- a/mk/linux/mojosetup/megaglest-installer/make.sh
+++ b/mk/linux/mojosetup/megaglest-installer/make.sh
@@ -119,7 +119,8 @@ CXX=/usr/bin/g++
 
 OSTYPE=`uname -s`
 if [ "$OSTYPE" = "Linux" ]; then
-    NCPU=`nproc`
+    NCPU=`lscpu -p | grep -cv '^#'`
+    if [ "$NUMCORES" = '' ]; then NUMCORES=1; fi
 elif [ "$OSTYPE" = "Darwin" ]; then
     NCPU=`sysctl -n hw.ncpu`
 elif [ "$OSTYPE" = "SunOS" ]; then