diff --git a/jenkins_build.sh b/jenkins_build.sh
index 93b4c03a..65524414 100755
--- a/jenkins_build.sh
+++ b/jenkins_build.sh
@@ -2,9 +2,9 @@
 
 ##
 # jenkins_build.sh
-#   called by jenkins to build/test exiv2 
+#   called by jenkins to build/test exiv2
 #   - jenkins sets environment variables
-#   called from terminal 
+#   called from terminal
 #   - script has build-in defaults for some environment variable
 #
 #  arguments:
@@ -31,7 +31,7 @@ run_tests() {
     fi
 }
 
-thepath () { 
+thepath () {
     if [ -d $1 ]; then
         ( cd $1;
         pwd );
@@ -84,7 +84,7 @@ fi
 echo "1 target = $target platform = $PLATFORM WORKSPACE = $WORKSPACE"
 if [ $PLATFORM == "macosx" -a -z "$macosx"   ]; then export macosx=true ; export target=macosx    ; fi
 if [ $PLATFORM == "linux"  -a -z "$linux"    ]; then export linux=true  ; export target=linux     ; fi
-if [ -z "$cygwin"    -a ! -z "$CYGWIN"       ]; then export cygwin=$CYGWIN                        ; fi       
+if [ -z "$cygwin"    -a ! -z "$CYGWIN"       ]; then export cygwin=$CYGWIN                        ; fi
 if [ -z "$tests"                             ]; then export tests=true                            ; fi
 if [ -z "$WORKSPACE"                         ]; then export WORKSPACE="$0/$PLATFORM"              ; fi
 
@@ -143,12 +143,12 @@ echo ---- end of path and perl ----
 
 case "$build" in
 
-  UNIX) 
+  UNIX)
         echo ./configure  --prefix=$PWD/usr  $withcurl $withssh
              ./configure "--prefix=$PWD/usr" $withcurl $withssh
-        make -j4 "LDFLAGS=-L${PWD}/usr/lib -L${PWD}/xmpsdk/src/.libs"
+        make -j "LDFLAGS=-L${PWD}/usr/lib -L${PWD}/xmpsdk/src/.libs"
         make install
-        make -j4 samples "CXXFLAGS=-I${PWD}/usr/include -I${PWD}/src" "LDFLAGS=-L${PWD}/usr/lib -L${PWD}/xmpsdk/src/.libs -lexiv2"
+        make -j samples "CXXFLAGS=-I${PWD}/usr/include -I${PWD}/src" "LDFLAGS=-L${PWD}/usr/lib -L${PWD}/xmpsdk/src/.libs -lexiv2"
         result=$?
         run_tests
         "$PWD/usr/bin/exiv2" -v -V
@@ -162,24 +162,24 @@ case "$build" in
 			# 2 trying to get Cygwin to install into a local directory
 
 			# deal with 32bit and 64bit build requests
-			# Jenkins invokes the 32 bit cygwin, so recursively build 64 bits.  
+			# Jenkins invokes the 32 bit cygwin, so recursively build 64 bits.
 			make clean
 			rm   -rf config.log config.status
 			echo ./configure ${withcurl} ${withssh} --disable-nls
-				 ./configure ${withcurl} ${withssh} --disable-nls 
-			make -j4
+				 ./configure ${withcurl} ${withssh} --disable-nls
+			make -j
 			make install
-			make -j4 samples
+			make -j samples
 			run_tests
 			/usr/local/bin/exiv2 -v -V
 			result=$?
         else
-			if [ "$x64" == true ]; then 
+			if [ "$x64" == true ]; then
 				export RECURSIVE=1
 				/cygdrive/c/cygwin64/bin/bash.exe -c "cd $PWD ; ./$0"
 				result=$?
 			fi
-			if [ "$Win32" == true ]; then 
+			if [ "$Win32" == true ]; then
 				export RECURSIVE=1
 				/cygdrive/c/cygwin/bin/bash.exe -c "cd $PWD ; ./$0"
 				result=$?
@@ -187,7 +187,7 @@ case "$build" in
         fi
   ;;
 
-  MING) 
+  MING)
         if [ ! -z "$RECURSIVE" ]; then
             export  CC=$(which gcc)
             export  CXX=$(which g++)
@@ -215,7 +215,7 @@ case "$build" in
             fi
 
             ./configure $withcurl $withssh
-            make        # DO NOT USE -j4.  It seems to hang the build!
+            make        # DO NOT USE -j.  It seems to hang the build!
             make install
             make samples
             run_tests
@@ -227,11 +227,11 @@ case "$build" in
                 export TEMP=$TMP
                 export RECURSIVE=1
                 # recursively invoke MinGW/bash with appropriate tool chain
-                if [ "$x64" == true ]; then 
+                if [ "$x64" == true ]; then
                     /cygdrive/c/MinGW64/msys/1.0/bin/bash.exe -c "export PATH=/c/TDM-GCC-64/bin:/c/MinGW64/bin:/c/MinGW64/msys/1.0/bin:/c/MinGW64/msys/1.0/local/bin; $0"
                     result=$?
                 fi
-                if [ "$Win32" == true ]; then 
+                if [ "$Win32" == true ]; then
                     /cygdrive/c/MinGW/msys/1.0/bin/bash.exe   -c "export PATH=/c/MinGW/bin:/c/MinGW/msys/1.0/bin:/c/MinGW/msys/1.0/local/bin; $0"
                     result=$?
                 fi
@@ -239,7 +239,7 @@ case "$build" in
 #########################################
 ##          #!/bin/bash
 ##          # mingw32.sh
-##          # invoke 32bit MinGW bash 
+##          # invoke 32bit MinGW bash
 ##          #
 ##          export "PATH=c:\\MinGW\\bin;c:\\MinGW\\msys\\1.0\\bin;C:\\MinGW\\msys\\1.0\\local\\bin;"
 ##          /cygdrive/c/MinGW/msys/1.0/bin/bash.exe $*
@@ -264,7 +264,7 @@ case "$build" in
 ##          see http://clanmills.com/exiv2/mingw.shtml about 64bit build
 ##          Install a fresh (32 bit) mingw/msys into c:\MinGW64
 ##          install the 64 bit compiler from: http://tdm-gcc.tdragon.net
-##          I used the "on-demand" installer and "Create" put the tools in c:\TDM-GCC-64. The main change is to add the 64 bit compilers to the path BEFORE the 32 bit compilers. 
+##          I used the "on-demand" installer and "Create" put the tools in c:\TDM-GCC-64. The main change is to add the 64 bit compilers to the path BEFORE the 32 bit compilers.
 ##          set PATH=c:\TDM-GCC-64\bin;c:\MinGW\bin;c:\MinGW\msys\1.0\bin;C:\MinGW\msys\1.0\local\bin;
 ##
 ##          keep MinGW64 for 64 bit builds and /usr/lib has 64bit libraries
@@ -297,7 +297,7 @@ case "$build" in
         fi
   ;;
 
-  MSVC) 
+  MSVC)
         rm -rf $PWD/bin
         mkdir $PWD/bin
 
@@ -306,12 +306,12 @@ case "$build" in
         result=$?
   ;;
 
-  NONE) 
+  NONE)
         echo "**************************************"
         echo "*** no build requested for $target ***"
         if [ "$target" == "cygwin" ]; then echo try export CYGWIN=true and run $(basename $0) again ; fi
         echo "**************************************"
-  ;; 
+  ;;
 esac
 
 echo target "$target" start: "$start" finish: $(date) diff: $(( $(date +%s) - starts )) seconds