projects-dir.mk: Introduce and evalutate JW_BUILD_VERBOSE

Most notably, ssh-wrapper.sh doesn't run ssh with -x anylonger,
if JW_BUILD_VERBOSE is not set to true

Signed-off-by: Jan Lindemann <jan@janware.com>

make/projects-dir.mk

@@ -13,18 +13,30 @@
 # might take you there semi-automatically.
 #
 
-# ------------ Makefile and environment variables
+# ------------ Makefile and environment variable definitions
 
 -include local.mk
 
-SHELL = /bin/bash -o pipefail
+SHELL                 = /bin/bash -o pipefail
+PROJECTS_TXT         ?= projects.txt
+JW_BUILD_VERBOSE     ?= false
+BASE_PACKAGES         = cvs git make sudo
+EXCLUDE_FROM_BUILD   += \
+	dspider-btools \
+	dspider-shared \
+	feedfs-dspcd \
+	casview \
+	dspfs \
+	jux3 \
+	emscren-v8
+
+
+# ------------ evaluate Makefile and environment variables
 
 ifneq ($(PROJECTS),)
   export PGIT_CLONE_PROJECTS = $(PROJECTS)
 endif
 
-PROJECTS_TXT         ?= projects.txt
-
 ifneq ($(wildcard $(PROJECTS_TXT)),)
   PROJECTS ?= $(shell cat $(PROJECTS_TXT) | sed '/^ *\#/ d')
   # TODO: this could be nicer
@@ -34,16 +46,11 @@ else
   CVS_PROJECTS = $(filter $(dir $(wildcard */CVS)),$(PROJECTS))
 endif
 
-BASE_PACKAGES = cvs git make sudo
+ifeq ($(JW_BUILD_VERBOSE),true)
+  SSH_WRAPPER_TRACE  ?= -x
+endif
 
-EXCLUDE_FROM_BUILD += \
+export JW_BUILD_VERBOSE
-	dspider-btools \
-	dspider-shared \
-	feedfs-dspcd \
-	casview \
-	dspfs \
-	jux3 \
-	emscren-v8
 
 # ------------ external programs I
 
@@ -370,7 +377,7 @@ links.done:
 	touch $@
 
 $(SSH_WRAPPER_SH): Makefile
-	/bin/echo -e '#!/bin/bash -x\n\nexec /usr/bin/ssh $$JW_BUILD_SSH_EXTRA_OPTS "$$@"' > $@.tmp
+	/bin/echo -e '#!/bin/bash $(SSH_WRAPPER_TRACE)\n\nexec /usr/bin/ssh $$JW_BUILD_SSH_EXTRA_OPTS "$$@"' > $@.tmp
 	chmod 700 $@.tmp
 	mv $@.tmp $@
 ssh-wrapper: $(SSH_WRAPPER_SH)