Merge branch 'jh/simple-ipc-sans-pthread'

The "simple-ipc" did not compile without pthreads support, but the
build procedure was not properly account for it.

* jh/simple-ipc-sans-pthread:
  simple-ipc: correct ifdefs when NO_PTHREADS is defined

1 files changed, 20 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 79bf9fe..c3565fc 100644
--- a/Makefile
+++ b/Makefile
@@ -1687,13 +1687,31 @@ ifdef NO_UNIX_SOCKETS
 else
 	LIB_OBJS += unix-socket.o
 	LIB_OBJS += unix-stream-server.o
-	LIB_OBJS += compat/simple-ipc/ipc-shared.o
-	LIB_OBJS += compat/simple-ipc/ipc-unix-socket.o
 endif
 
+# Simple IPC requires threads and platform-specific IPC support.
+# Only platforms that have both should include these source files
+# in the build.
+#
+# On Windows-based systems, Simple IPC requires threads and Windows
+# Named Pipes.  These are always available, so Simple IPC support
+# is optional.
+#
+# On Unix-based systems, Simple IPC requires pthreads and Unix
+# domain sockets.  So support is only enabled when both are present.
+#
 ifdef USE_WIN32_IPC
+	BASIC_CFLAGS += -DSUPPORTS_SIMPLE_IPC
 	LIB_OBJS += compat/simple-ipc/ipc-shared.o
 	LIB_OBJS += compat/simple-ipc/ipc-win32.o
+else
+ifndef NO_PTHREADS
+ifndef NO_UNIX_SOCKETS
+	BASIC_CFLAGS += -DSUPPORTS_SIMPLE_IPC
+	LIB_OBJS += compat/simple-ipc/ipc-shared.o
+	LIB_OBJS += compat/simple-ipc/ipc-unix-socket.o
+endif
+endif
 endif
 
 ifdef NO_ICONV