diff --git a/ipc.c b/ipc.c
index 38cba70..54f8e6c 100644
--- a/ipc.c
+++ b/ipc.c
@@ -7,10 +7,6 @@
 #include <sys/un.h>
 #include "ipc.h"
 
-#if !defined(MSG_NOSIGNAL) && !defined(SO_NOSIGPIPE)
-#error "ipcsend requires MSG_NOSIGNAL or SO_NOSIGPIPE"
-#endif
-
 static void
 putlen(unsigned char p[Ipclensz], size_t n)
 {
@@ -68,8 +64,8 @@ ipcconnect(void)
 }
 
 void
-ipcpackreq(unsigned char req[Ipcreqsz], int want, unsigned int mod,
-	unsigned int key)
+ipcpackreq(unsigned char req[Ipcreqsz], int want, uint32_t mod,
+	uint32_t key)
 {
 	req[0] = want ? Ipcreqwant : 0;
 	req[1] = mod;
@@ -87,15 +83,15 @@ ipcpackreset(unsigned char req[Ipcreqsz], int want)
 }
 
 void
-ipcunpackreq(const unsigned char req[Ipcreqsz], int *want, unsigned int *mod,
-	unsigned int *key)
+ipcunpackreq(const unsigned char req[Ipcreqsz], int *want, uint32_t *mod,
+	uint32_t *key)
 {
 	*want = (req[0] & Ipcreqwant) != 0;
 	*mod = req[1] & Mmask;
-	*key = (unsigned int)req[2] |
-		((unsigned int)req[3] << 8) |
-		((unsigned int)req[4] << 16) |
-		((unsigned int)req[5] << 24);
+	*key = (uint32_t)req[2] |
+		((uint32_t)req[3] << 8) |
+		((uint32_t)req[4] << 16) |
+		((uint32_t)req[5] << 24);
 }
 
 int
@@ -156,27 +152,10 @@ ipcsend(int fd, const void *buf, size_t n)
 {
 	const unsigned char *p;
 	ssize_t r;
-	int flags;
-#if !defined(MSG_NOSIGNAL) && defined(SO_NOSIGPIPE)
-	int one, sr;
-#endif
 
 	p = buf;
-#ifdef MSG_NOSIGNAL
-	flags = MSG_NOSIGNAL;
-#else
-	flags = 0;
-#ifdef SO_NOSIGPIPE
-	one = 1;
-	do
-		sr = setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, &one, sizeof one);
-	while(sr < 0 && errno == EINTR);
-	if(sr < 0)
-		return -1;
-#endif
-#endif
 	while(n > 0){
-		r = send(fd, p, n, flags);
+		r = send(fd, p, n, MSG_NOSIGNAL);
 		if(r < 0 && errno == EINTR)
 			continue;
 		if(r <= 0)
diff --git a/ipc.h b/ipc.h
index 0cbf70d..b517e94 100644
--- a/ipc.h
+++ b/ipc.h
@@ -1,7 +1,5 @@
-#ifndef STRANS_IPC_H
-#define STRANS_IPC_H
-
 #include <stddef.h>
+#include <stdint.h>
 
 /*
  * Request: [flags, modifiers, key byte 0, ..., key byte 3].
@@ -51,9 +49,9 @@ struct Ipcresp
 	size_t	npreedit;
 };
 
-void	ipcpackreq(unsigned char[Ipcreqsz], int, unsigned int, unsigned int);
+void	ipcpackreq(unsigned char[Ipcreqsz], int, uint32_t, uint32_t);
 void	ipcpackreset(unsigned char[Ipcreqsz], int);
-void	ipcunpackreq(const unsigned char[Ipcreqsz], int*, unsigned int*, unsigned int*);
+void	ipcunpackreq(const unsigned char[Ipcreqsz], int*, uint32_t*, uint32_t*);
 int	ipcreqreset(const unsigned char[Ipcreqsz]);
 int	ipcpackresp(unsigned char*, size_t, int, const char*, size_t, const char*, size_t, int);
 int	ipcreadn(int, void*, size_t);
@@ -61,5 +59,3 @@ int	ipcsend(int, const void*, size_t);
 int	ipcreadresp(int, int, char*, size_t, char*, size_t, Ipcresp*);
 int	ipcpath(char*, size_t);
 int	ipcconnect(void);
-
-#endif
diff --git a/tests/engine_test.c b/tests/engine_test.c
index 88542dc..42fbf23 100644
--- a/tests/engine_test.c
+++ b/tests/engine_test.c
@@ -1,6 +1,11 @@
-#define STRANS_TEST_ENGINE
 #include "../strans.c"
-#include "test.h"
+#include "../cutest/cutest.h"
+
+extern Lang testvi;
+
+Str mkstr(char*);
+int checkstr(struct ct*, char*, char*, Str*);
+Str shownpre(Im*);
 
 static int typekeys(struct ct*, char*, Str*);
 
diff --git a/tests/test.h b/tests/test.h
index 107b207..f33e33f 100644
--- a/tests/test.h
+++ b/tests/test.h
@@ -1,12 +1,6 @@
-#ifndef STRANS_TEST_H
-#define STRANS_TEST_H
-
 #include "../cutest/cutest.h"
-
-#ifndef STRANS_TEST_ENGINE
 #include "../dat.h"
 #include "../fn.h"
-#endif
 
 extern Lang testvi;
 
@@ -72,5 +66,3 @@ void	ipc_response_empty_and_preedit(struct ct*);
 void	ipc_response_max_and_drain(struct ct*);
 void	ipc_response_fragmented_and_truncated(struct ct*);
 void	ipc_broken_peer_send(struct ct*);
-
-#endif