diff --git a/src/Build/Packaging/openwrt/package/utils/veracrypt/Makefile.in b/src/Build/Packaging/openwrt/package/utils/veracrypt/Makefile.in
index 6b73e8e0..a914b338 100644
--- a/src/Build/Packaging/openwrt/package/utils/veracrypt/Makefile.in
+++ b/src/Build/Packaging/openwrt/package/utils/veracrypt/Makefile.in
@@ -74,7 +74,7 @@ VC_COMMON_MAKE_FLAGS = \
 
 define Build/Compile
 	+$(MAKE) -C "$(PKG_BUILD_DIR)/veracrypt/src" $(VC_COMMON_MAKE_FLAGS) clean
-	+$(MAKE) -C "$(PKG_BUILD_DIR)/veracrypt/src" $(VC_COMMON_MAKE_FLAGS) wxbuild
+	+$(MAKE) -C "$(PKG_BUILD_DIR)/veracrypt/src" $(PKG_JOBS) $(VC_COMMON_MAKE_FLAGS) WX_MAKE_JOBS= wxbuild
 	+$(MAKE) -C "$(PKG_BUILD_DIR)/veracrypt/src" $(PKG_JOBS) $(VC_COMMON_MAKE_FLAGS)
 endef
 
diff --git a/src/Makefile b/src/Makefile
index 7c15e5a3..43d77ac6 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -726,6 +726,16 @@ CXXFLAGS :=
 LFLAGS :=
 endif
 
+# The wxWidgets build runs 4 jobs by default, but follows the job count and
+# jobserver of a parent "make -jN" (e.g. a distribution package build).
+# MFLAGS may group single-letter options into one word (GNU make 3.81 gives
+# "-sj" for "-s -j"), so look for "j" in every single-dash option word,
+# skipping the options that take an argument. An argument that contains a
+# space followed by "-j" (e.g. -I '/x -j3') still looks like a job option;
+# set WX_MAKE_JOBS explicitly in that case.
+WX_MAKE_OPTS = $(filter-out --% -C% -E% -I% -O% -W% -f% -o%,$(filter -%,$(MFLAGS)))
+WX_MAKE_JOBS = $(if $(findstring j,$(WX_MAKE_OPTS))$(filter --jobserver%,$(MFLAGS)),,-j 4)
+
 wxbuild:
 
 ifneq "$(shell test -f $(WX_ROOT)/configure || test -f $(WX_BUILD_DIR)/../configure && echo 1)" "1"
@@ -746,4 +756,4 @@ endif
 	"$(WX_ROOT)/configure" $(WX_CONFIGURE_FLAGS) $(WX_CONFIGURE_EXTRA_FLAGS) $$WX_CONFIGURE_LEGACY_FLAGS >/dev/null
 
 	@echo Building wxWidgets library...
-	cd "$(WX_BUILD_DIR)" && $(MAKE) -j 4
+	cd "$(WX_BUILD_DIR)" && $(MAKE) $(WX_MAKE_JOBS)