Add an option to skip building the main programs (--disable-apps)

git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1622 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

urjtag/ChangeLog

@@ -1,3 +1,8 @@
+2009-05-23  Rutger Hofman <rfhh>
+
+  * configure.ac, Makefile.am: add an option (--disable-apps) to build only
+    the library, not the application main programs
+
 2009-05-23  Arnim Laeuger  <arniml>
 
   * src/bsdl2jtag, configure.ac, Makefile.am, src/Makefile.am,

urjtag/Makefile.am

@@ -28,10 +28,14 @@ SUBDIRS = \
 	include/urjtag \
 	data \
 	src \
-	src/apps/jtag \
-	src/apps/bsdl2jtag \
 	po
 
+if ENABLE_APPS
+SUBDIRS += \
+	src/apps/jtag \
+	src/apps/bsdl2jtag
+endif
+
 DIST_SUBDIRS = \
 	$(SUBDIRS)
 

urjtag/configure.ac

@@ -295,6 +295,18 @@ AC_SUBST(WARNINGCFLAGS)
 
 CPPFLAGS="-I\$(top_srcdir) -I\$(top_srcdir)/include $CPPFLAGS"
 
+AC_ARG_ENABLE([apps],
+  [AS_HELP_STRING([--disable-apps],
+    [disable building the jtag and bsdl2jtag main programs])],,
+    [enable_apps=yes])
+
+AS_IF([test "x$enable_apps" = xyes], [
+  AM_CONDITIONAL(ENABLE_APPS, true)
+  AC_DEFINE(ENABLE_APPS, 1, [define if you want to build the jtag and bsdl2jtag main programs])
+],[
+  AM_CONDITIONAL(ENABLE_APPS, false)
+])
+
 
 # check for lex/flex
 AC_PROG_LEX