disable parallel builds for packages pthreads, winpcap and gdal

src/gdal.mk

@@ -32,12 +32,12 @@ define $(PKG)_BUILD
         --with-expat=no \
         --without-python \
         --without-ngpython
-    $(MAKE) -C '$(1)'       -j '$(JOBS)' lib-target
-    $(MAKE) -C '$(1)'       -j '$(JOBS)' install-lib
-    $(MAKE) -C '$(1)/port'  -j '$(JOBS)' install
-    $(MAKE) -C '$(1)/gcore' -j '$(JOBS)' install
-    $(MAKE) -C '$(1)/frmts' -j '$(JOBS)' install
-    $(MAKE) -C '$(1)/alg'   -j '$(JOBS)' install
-    $(MAKE) -C '$(1)/ogr'   -j '$(JOBS)' install OGR_ENABLED=
-    $(MAKE) -C '$(1)/apps'  -j '$(JOBS)' install BIN_LIST=
+    $(MAKE) -C '$(1)'       -j 1 lib-target
+    $(MAKE) -C '$(1)'       -j 1 install-lib
+    $(MAKE) -C '$(1)/port'  -j 1 install
+    $(MAKE) -C '$(1)/gcore' -j 1 install
+    $(MAKE) -C '$(1)/frmts' -j 1 install
+    $(MAKE) -C '$(1)/alg'   -j 1 install
+    $(MAKE) -C '$(1)/ogr'   -j 1 install OGR_ENABLED=
+    $(MAKE) -C '$(1)/apps'  -j 1 install BIN_LIST=
 endef

src/pthreads.mk

@@ -17,7 +17,7 @@ endef
 
 define $(PKG)_BUILD
     $(SED) '35i\#define PTW32_STATIC_LIB' -i '$(1)/pthread.h'
-    $(MAKE) -C '$(1)' -j '$(JOBS)' GC-static CROSS='$(TARGET)-'
+    $(MAKE) -C '$(1)' -j 1 GC-static CROSS='$(TARGET)-'
     install -d '$(PREFIX)/$(TARGET)/lib'
     install -m664 '$(1)/libpthreadGC2.a' '$(PREFIX)/$(TARGET)/lib/libpthread.a'
     install -d '$(PREFIX)/$(TARGET)/include'

src/winpcap.mk

@@ -39,7 +39,7 @@ define $(PKG)_BUILD
     CC='$(TARGET)-gcc' \
     AR='$(TARGET)-ar' \
     RANLIB='$(TARGET)-ranlib' \
-    $(MAKE) -C '$(1)/wpcap/PRJ' -j '$(JOBS)' libwpcap.a
+    $(MAKE) -C '$(1)/wpcap/PRJ' -j 1 libwpcap.a
     install -d '$(PREFIX)/$(TARGET)/include'
     install -m644 '$(1)/wpcap/libpcap/'*.h '$(1)/wpcap/Win32-Extensions/'*.h '$(PREFIX)/$(TARGET)/include/'
     install -d '$(PREFIX)/$(TARGET)/lib'