Only compile dpfp examples when sigaction is available

It's not available on MinGW.

diff --git a/configure.ac b/configure.ac
index 0c8eb76..36f364c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -127,6 +127,10 @@ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
        nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
 CFLAGS="$saved_cflags"
 
+# sigaction not available on MinGW
+AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
+AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = "xyes"])
+
 # headers not available on all platforms but required on others
 AC_CHECK_HEADERS([sys/time.h])
 

diff --git a/examples/Makefile.am b/examples/Makefile.am
index bed1837..9535ea7 100644 (file)
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -1,16 +1,21 @@
 INCLUDES = -I$(top_srcdir)
-noinst_PROGRAMS = lsusb dpfp
+noinst_PROGRAMS = lsusb
 
 lsusb_SOURCES = lsusb.c
 lsusb_LDADD = ../libusb/libusb-1.0.la -lusb-1.0
 
+if HAVE_SIGACTION
 dpfp_SOURCES = dpfp.c
 dpfp_LDADD = ../libusb/libusb-1.0.la -lusb-1.0
+noinst_PROGRAMS += dpfp
+endif
 
 if THREADS_POSIX
+if HAVE_SIGACTION
 dpfp_threaded_SOURCES = dpfp_threaded.c
 dpfp_threaded_CFLAGS = $(THREAD_CFLAGS) $(AM_CFLAGS)
 dpfp_threaded_LDADD = ../libusb/libusb-1.0.la -lusb-1.0
 noinst_PROGRAMS += dpfp_threaded
 endif
+endif