X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=16056c2b0f525904d25886e78ae5e0a798cd4729;hb=c178386178e60347d81cd818d5f5bf163fa7ebe7;hp=396db6badd14ca85d280703888a24d057f4db196;hpb=5b9e9bba746c25f3b3f0a962dc5586eef3d78197;p=libsigrok.git

diff --git a/configure.ac b/configure.ac
index 396db6ba..16056c2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,7 +46,8 @@ AC_PROG_LN_S
 # Required for per-target flags or subdir-objects with C sources.
 AM_PROG_CC_C_O
 
-# Check if order-only dependencies are supported.
+# Check for optional make features.
+SR_PROG_MAKE_NO_PRINT_DIRECTORY
 SR_PROG_MAKE_ORDER_ONLY
 
 # Initialize libtool.
@@ -91,10 +92,15 @@ SR_ARG_OPT_PKG([libftdi], [LIBFTDI],,
 
 # FreeBSD comes with an "integrated" libusb-1.0-style USB API.
 # This means libusb-1.0 is always available; no need to check for it.
-AS_CASE([$host], [*freebsd*], [sr_have_libusb=yes])
+# On Windows, require the latest version we can get our hands on,
+# until the new generic event handling has seen an official release.
+AS_CASE([$host_os],
+	[freebsd*], [sr_libusb_req='libusb-1.0' sr_have_libusb=yes],
+	[mingw*], [sr_libusb_req='libusb-1.0 >= 1.0.20'],
+	[sr_libusb_req='libusb-1.0 >= 1.0.16'])
 
 SR_ARG_OPT_PKG([libusb], [LIBUSB_1_0], [NEED_USB],
-	[libusb-1.0 >= 1.0.16])
+	[$sr_libusb_req])
 
 SR_ARG_OPT_PKG([librevisa], [LIBREVISA], [NEED_VISA],
 	[librevisa >= 0.0.20130412])
@@ -108,7 +114,7 @@ SR_ARG_OPT_CHECK([libieee1284], [LIBIEEE1284],, [
 	AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ieee1284.h>]],
 				[[(void) ieee1284_open(0, 0, 0);]])],
 		[sr_have_libieee1284=yes], [sr_have_libieee1284=no])
-	sr_save_LIBS=$LIBS
+	LIBS=$sr_save_LIBS
 ])
 AS_IF([test "x$sr_have_libieee1284" = xyes],
 	[SR_PREPEND([SR_EXTRA_LIBS], [-lieee1284])])
@@ -420,6 +426,18 @@ AM_COND_IF([BINDINGS_CXX], [
 	PKG_CHECK_MODULES([LIBSIGROKCXX], [$SR_PKGLIBS_CXX])
 	PKG_CHECK_MODULES([PYSIGROK], [$SR_PKGLIBS_PYTHON $SR_PKGLIBS_CXX])
 ])
+
+# Check for specific libusb features, now that we know the CFLAGS.
+AC_LANG([C])
+sr_save_cflags=$CFLAGS
+CFLAGS="$LIBSIGROK_CFLAGS $CFLAGS"
+AC_CHECK_TYPES([libusb_os_handle],
+	[sr_have_libusb_os_handle=yes], [sr_have_libusb_os_handle=no],
+	[[#include <libusb.h>]])
+CFLAGS=$sr_save_cflags
+AM_COND_IF([NEED_USB], [AS_CASE([$sr_have_libusb_os_handle:$host_os], [no:mingw*],
+	[AC_MSG_ERROR([Windows builds require the event-abstraction branch of libusb])])])
+
 sr_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`
 sr_libzip_version=`$PKG_CONFIG --modversion libzip 2>&AS_MESSAGE_LOG_FD`
 
@@ -448,8 +466,12 @@ libsigrok configuration summary:
  - Prefix.......................... $prefix
  - Building on..................... $build
  - Building for.................... $host
+ - C compiler...................... $CC
+ - C compiler flags................ $CFLAGS
  - Additional C compiler flags..... $SR_EXTRA_CFLAGS
  - C compiler warnings............. $SR_WFLAGS
+ - C++ compiler.................... $CXX
+ - C++ compiler flags.............. $CXXFLAGS
  - C++ compiler warnings........... $SR_WXXFLAGS
 
 Detected libraries (required):