8 files changed, 8 insertions, 8 deletions
diff --git a/debian/_base/dependencies/libr/debian/rules b/debian/_base/dependencies/libr/debian/rules
index 1b6b94b3e..5d37a7e50 100755
--- a/debian/_base/dependencies/libr/debian/rules
+++ b/debian/_base/dependencies/libr/debian/rules
@@ -4,7 +4,7 @@ include /usr/share/cdbs/1/rules/debhelper.mk
 include /usr/share/cdbs/1/class/cmake.mk
 include /usr/share/cdbs/1/rules/utils.mk
 
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
                                && echo xz || echo bzip2)
diff --git a/debian/_base/dependencies/tqt3/debian/rules b/debian/_base/dependencies/tqt3/debian/rules
index d69ef202b..38573561f 100755
--- a/debian/_base/dependencies/tqt3/debian/rules
+++ b/debian/_base/dependencies/tqt3/debian/rules
@@ -20,7 +20,7 @@ DEB_HOST_MULTIARCH	?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
 # Honour "parallel=N" option of DEB_BUILD_OPTIONS.  Comment out to
 # never build in parallel, regardless of DEB_BUILD_OPTIONS.
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 ifeq ($(DEB_HOST_ARCH_OS),hurd)
 	PLATFORM_ARG = hurd-g++
diff --git a/debian/_base/dependencies/tqtinterface/debian/rules b/debian/_base/dependencies/tqtinterface/debian/rules
index d642db97b..0e9194d0c 100755
--- a/debian/_base/dependencies/tqtinterface/debian/rules
+++ b/debian/_base/dependencies/tqtinterface/debian/rules
@@ -23,6 +23,6 @@ DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
 
 # Honour "parallel=N" option of DEB_BUILD_OPTIONS.  Comment out to
 # never build in parallel, regardless of DEB_BUILD_OPTIONS.
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 DEB_HOST_ARCH_OS ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
diff --git a/debian/_base/tde-i18n/debian/rules b/debian/_base/tde-i18n/debian/rules
index 8c85d662c..2427e42f4 100755
--- a/debian/_base/tde-i18n/debian/rules
+++ b/debian/_base/tde-i18n/debian/rules
@@ -22,7 +22,7 @@ DEB_CONFIGURE_MANDIR := /opt/trinity/share/man
 DEB_CONFIGURE_PREFIX := /opt/trinity
 DEB_CONFIGURE_INFODIR := /opt/trinity/share/info
 
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
 	DEB_PARALLEL_JOBS ?= $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
diff --git a/ubuntu/_base/dependencies/libr/debian/rules b/ubuntu/_base/dependencies/libr/debian/rules
index 1b6b94b3e..5d37a7e50 100755
--- a/ubuntu/_base/dependencies/libr/debian/rules
+++ b/ubuntu/_base/dependencies/libr/debian/rules
@@ -4,7 +4,7 @@ include /usr/share/cdbs/1/rules/debhelper.mk
 include /usr/share/cdbs/1/class/cmake.mk
 include /usr/share/cdbs/1/rules/utils.mk
 
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
                                && echo xz || echo bzip2)
diff --git a/ubuntu/_base/dependencies/tqt3/debian/rules b/ubuntu/_base/dependencies/tqt3/debian/rules
index d69ef202b..38573561f 100755
--- a/ubuntu/_base/dependencies/tqt3/debian/rules
+++ b/ubuntu/_base/dependencies/tqt3/debian/rules
@@ -20,7 +20,7 @@ DEB_HOST_MULTIARCH	?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
 # Honour "parallel=N" option of DEB_BUILD_OPTIONS.  Comment out to
 # never build in parallel, regardless of DEB_BUILD_OPTIONS.
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 ifeq ($(DEB_HOST_ARCH_OS),hurd)
 	PLATFORM_ARG = hurd-g++
diff --git a/ubuntu/_base/dependencies/tqtinterface/debian/rules b/ubuntu/_base/dependencies/tqtinterface/debian/rules
index d642db97b..0e9194d0c 100755
--- a/ubuntu/_base/dependencies/tqtinterface/debian/rules
+++ b/ubuntu/_base/dependencies/tqtinterface/debian/rules
@@ -23,6 +23,6 @@ DEB_DH_BUILDDEB_ARGS += -- -Z$(shell dpkg-deb --help | grep -q ":.* xz[,.]" \
 
 # Honour "parallel=N" option of DEB_BUILD_OPTIONS.  Comment out to
 # never build in parallel, regardless of DEB_BUILD_OPTIONS.
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 DEB_HOST_ARCH_OS ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
diff --git a/ubuntu/_base/tde-i18n/debian/rules b/ubuntu/_base/tde-i18n/debian/rules
index 8c85d662c..2427e42f4 100755
--- a/ubuntu/_base/tde-i18n/debian/rules
+++ b/ubuntu/_base/tde-i18n/debian/rules
@@ -22,7 +22,7 @@ DEB_CONFIGURE_MANDIR := /opt/trinity/share/man
 DEB_CONFIGURE_PREFIX := /opt/trinity
 DEB_CONFIGURE_INFODIR := /opt/trinity/share/info
 
-DEB_BUILD_PARALLEL = true
+DEB_BUILD_PARALLEL ?= true
 
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
 	DEB_PARALLEL_JOBS ?= $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))