diff --git a/ThirdParty/mingwBuild/build.sh b/ThirdParty/mingwBuild/build.sh
index a10de7bf9..d095c5443 100644
--- a/ThirdParty/mingwBuild/build.sh
+++ b/ThirdParty/mingwBuild/build.sh
@@ -151,13 +151,14 @@ build_library() {
 
         system)
             cd $INSTALL_DIR
-            patch system
+            patch $PACKAGE
             ;;
 
         pthreads-w32-2-9-1-release)
             download $PACKAGE.zip ftp://sourceware.org/pub/pthreads-win32/pthreads-w32-2-9-1-release.zip > $LOG_FILE 2>&1
             unzip_dir $PACKAGE >> $LOG_FILE 2>&1
             patch $PACKAGE
+            mv $PACKAGE $INSTALL_DIR
             ;;
 
         metis-5.1.0)
@@ -222,7 +223,7 @@ build_library() {
             ;;
 
         scotch_6.0.4)
-            export PTHREADS_HOME=$BUILD_DIR/pthreads-w32-2-9-1-release
+            export PTHREADS_HOME=$INSTALL_DIR/pthreads-w32-2-9-1-release
             download $PACKAGE.tar.gz https://gforge.inria.fr/frs/download.php/34618 > $LOG_FILE 2>&1
             extract "$PACKAGE.tar.gz" gzip >> $LOG_FILE 2>&1
             patch $PACKAGE
diff --git a/ThirdParty/mingwBuild/x64/patches/scotch_6.0.4/src/Makefile.inc b/ThirdParty/mingwBuild/x64/patches/scotch_6.0.4/src/Makefile.inc
index 69c4c02c0..bfb7e1ca4 100644
--- a/ThirdParty/mingwBuild/x64/patches/scotch_6.0.4/src/Makefile.inc
+++ b/ThirdParty/mingwBuild/x64/patches/scotch_6.0.4/src/Makefile.inc
@@ -46,7 +46,7 @@ LDFLAGS    	+= -L$(MPI_ROOTDIR)/bin -lm -lmpi -lmpid
 #PTHREAD_ROOTDIR		= $(PGMFILES)/pthread-win32
 #CFLAGS_INC		+= -I$(PTHREAD_ROOTDIR)/include
 #CLIBFLAGS	=
-LDFLAGS		+= -L$(PTHREADS_HOME)/Pre-built.2/lib/x64 -lpthread
+LDFLAGS		+= -L$(PTHREADS_HOME)/Pre-built.2/lib/x64 -lpthreadGC2
 
 #--- zlib: Uncomment for compressed files
 #ZLIB_ROOTDIR		= $(PGMFILES)/zlib-1.2.3