From d2c4ee9e488f6c94865cc2f4c874d025bc2ae0d2 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Mon, 24 Nov 2003 00:43:41 +0000
Subject: Tweaks to build properly on Linux.

---
 src/cmd/idiff.c      | 19 ++++---------------
 src/lib9/await.c     |  2 ++
 src/lib9/date.c      | 19 ++++++++++++++++---
 src/lib9/dirfwstat.c |  7 +++++++
 src/lib9/dirread.c   | 15 +++++++++++++++
 src/lib9/dirwstat.c  | 11 +++++------
 src/lib9/notify.c    |  5 +++++
 src/lib9/postnote.c  |  4 ++--
 8 files changed, 56 insertions(+), 26 deletions(-)

(limited to 'src')

diff --git a/src/cmd/idiff.c b/src/cmd/idiff.c
index 47326782..c3f207fe 100644
--- a/src/cmd/idiff.c
+++ b/src/cmd/idiff.c
@@ -81,23 +81,12 @@ main(int argc, char **argv)
 int
 opentemp(char *template, int mode, long perm)
 {
-	int fd, i;
-	char *p;	
-
-	p = strdup(template);
-	if(p == nil)
-		sysfatal("strdup out of memory");
-	fd = -1;
-	for(i=0; i<10; i++){
-		mktemp(p);
-		if(access(p, 0) < 0 && (fd=create(p, mode, perm)) >= 0)
-			break;
-		strcpy(p, template);
-	}
+	int fd;
+
+	fd = mkstemp(template);
 	if(fd < 0)
 		sysfatal("could not create temporary file");
-	strcpy(template, p);
-	free(p);
+	fchmod(fd, perm);
 
 	return fd;
 }
diff --git a/src/lib9/await.c b/src/lib9/await.c
index ba94c28a..56d79b79 100644
--- a/src/lib9/await.c
+++ b/src/lib9/await.c
@@ -18,7 +18,9 @@ static struct {
 	SIGILL,		"sys: trap: illegal instruction",
 	SIGTRAP,		"sys: trace trap",
 	SIGABRT,		"sys: abort",
+#ifdef SIGEMT
 	SIGEMT,		"sys: emulate instruction executed",
+#endif
 	SIGFPE,		"sys: fp: trap",
 	SIGKILL,		"sys: kill",
 	SIGBUS,		"sys: bus error",
diff --git a/src/lib9/date.c b/src/lib9/date.c
index 72860aa7..22ec6721 100644
--- a/src/lib9/date.c
+++ b/src/lib9/date.c
@@ -1,3 +1,5 @@
+#include <stdlib.h> /* setenv etc. */
+
 #include <u.h>
 #include <libc.h>
 
@@ -72,11 +74,22 @@ p9localtime(long t)
 	return &bigtm;
 }
 
-#if !defined(_HAVETIMEGM) && defined(_HAVETIMEZONEINT)
-static long
+#if !defined(_HAVETIMEGM)
+static time_t
 timegm(struct tm *tm)
 {
-	return mktime(tm)-timezone;
+	time_t ret;
+	char *tz;
+
+	tz = getenv("TZ");
+	setenv("TZ", "", 1);
+	tzset();
+	ret = mktime(tm);
+	if(tz)
+		setenv("TZ", tz, 1);
+	else
+		unsetenv("TZ");
+	return ret;
 }
 #endif
 
diff --git a/src/lib9/dirfwstat.c b/src/lib9/dirfwstat.c
index 7ca51251..9f0d485c 100644
--- a/src/lib9/dirfwstat.c
+++ b/src/lib9/dirfwstat.c
@@ -10,6 +10,13 @@ futimes(int fd, struct timeval *tv)
 {
 	return futimesat(fd, 0, tv);
 }
+#elif !defined(_HAVEFUTIMES)
+static int
+futimes(int fd, struct timeval *tv)
+{
+	werrstr("futimes not available");
+	return -1;
+}
 #endif
 
 int
diff --git a/src/lib9/dirread.c b/src/lib9/dirread.c
index 5151b132..d19429e8 100644
--- a/src/lib9/dirread.c
+++ b/src/lib9/dirread.c
@@ -11,6 +11,21 @@
 
 extern int _p9dir(struct stat*, char*, Dir*, char**, char*);
 
+#if !defined(_HAVEGETDENTS) && defined(_HAVEGETDIRENTRIES)
+static int
+getdents(int fd, char *buf, int n)
+{
+	ssize_t nn;
+	off_t off;
+
+	off = seek(fd, 0, 1);
+	nn = getdirentries(fd, buf, n, &off);
+	if(nn > 0)
+		seek(fd, off, 0);
+	return nn;
+}
+#endif
+
 static int
 countde(char *p, int n)
 {
diff --git a/src/lib9/dirwstat.c b/src/lib9/dirwstat.c
index 573dd376..d003ac83 100644
--- a/src/lib9/dirwstat.c
+++ b/src/lib9/dirwstat.c
@@ -3,19 +3,18 @@
 #include <libc.h>
 
 #include <sys/time.h>
+#include <utime.h>
 
 int
 dirwstat(char *file, Dir *dir)
 {
-	struct timeval tv[2];
+	struct utimbuf ub;
 
 	/* BUG handle more */
 	if(dir->mtime == ~0ULL)
 		return 0;
 
-	tv[0].tv_sec = dir->mtime;
-	tv[0].tv_usec = 0;
-	tv[1].tv_sec = dir->mtime;
-	tv[1].tv_usec = 0;
-	return utimes(file, tv);
+	ub.actime = dir->mtime;
+	ub.modtime = dir->mtime;
+	return utime(file, &ub);
 }
diff --git a/src/lib9/notify.c b/src/lib9/notify.c
index 095a3f54..7e3c04f7 100644
--- a/src/lib9/notify.c
+++ b/src/lib9/notify.c
@@ -14,7 +14,9 @@ static int sigs[] = {
 	SIGILL,
 	SIGTRAP,
 	SIGABRT,
+#ifdef SIGEMT
 	SIGEMT,
+#endif
 	SIGFPE,
 	SIGBUS,
 	SIGSEGV,
@@ -30,6 +32,9 @@ static int sigs[] = {
 	SIGVTALRM,
 	SIGUSR1,
 	SIGUSR2,
+#ifdef SIGINFO
+	SIGINFO,
+#endif
 };
 
 static void (*notifyf)(void*, char*);
diff --git a/src/lib9/postnote.c b/src/lib9/postnote.c
index 9124bd5c..a75305cf 100644
--- a/src/lib9/postnote.c
+++ b/src/lib9/postnote.c
@@ -1,9 +1,9 @@
-#include <signal.h>
-
 #include <u.h>
 #define _NO9DEFINES_
 #include <libc.h>
 
+#include <signal.h>
+
 
 extern int _p9strsig(char*);
 
-- 
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