libftdi: add a --without-examples configure flag

There's a few places where I'm only concerned with building the libftdi
library (for integrating it into a JTAG program), so the examples are just
noise to me.  As such, add an --without-examples configure flag so people
can easily disable the subdir.  The default is unchanged -- examples are
still compiled & installed.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/configure.in b/configure.in
index 9ddcc4e..e9d7b14 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -38,6 +38,10 @@ AC_ARG_WITH(async-mode,
 ])
 AC_SUBST(ENABLE_ASYNC_MODE)
 
+AC_ARG_WITH(examples,
+  AS_HELP_STRING([--without-examples], [disable example programs]))
+AM_CONDITIONAL(BUILD_EXAMPLES, [test "x$with_examples" != "xno"])
+
 LIBFTDI_MODULES=
 LIBFTDI_MODULES_PKGCONFIG=
 

diff --git a/examples/Makefile.am b/examples/Makefile.am
index 820599a..f45c7e5 100644 (file)
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -10,7 +10,8 @@ examples_libftdipp =
 endif
 
 
-bin_PROGRAMS = simple \
+if BUILD_EXAMPLES
+all_examples = simple \
        bitbang       \
        bitbang2      \
        bitbang_ft2232 \
@@ -19,6 +20,10 @@ bin_PROGRAMS = simple \
        serial_read \
        baud_test \
        $(examples_libftdipp)
+else
+all_examples =
+endif
+bin_PROGRAMS = $(all_examples)
 
 # Don't install the example files
 AM_LDFLAGS = -no-install