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From 41c029755502acf01ed634db437ac06d09be6c41 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Date: Fri, 13 Apr 2018 09:02:37 +0200
Subject: [PATCH] Don't use fork() on noMMU platforms
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Jörg: update patch for 1.1.6]
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Upstream: http://mailman.alsa-project.org/pipermail/alsa-devel/2018-November/141376.html
---
configure.ac | 2 ++
src/pcm/pcm_direct.c | 10 +++++++++-
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index cce195ae..0c852434 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,6 +51,8 @@ dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_CHECK_FUNCS([uselocale])
+AC_CHECK_FUNC([fork])
+
SAVE_LIBRARY_VERSION
AC_SUBST(LIBTOOL_VERSION_INFO)
diff --git a/src/pcm/pcm_direct.c b/src/pcm/pcm_direct.c
index 2b07eff9..4dc3ea26 100644
--- a/src/pcm/pcm_direct.c
+++ b/src/pcm/pcm_direct.c
@@ -431,13 +431,21 @@ int snd_pcm_direct_server_create(snd_pcm_direct_t *dmix)
close(dmix->server_fd);
return ret;
}
-
+
+#ifdef HAVE_FORK
ret = fork();
+#else
+ ret = vfork();
+#endif
if (ret < 0) {
close(dmix->server_fd);
return ret;
} else if (ret == 0) {
+#ifdef HAVE_FORK
ret = fork();
+#else
+ ret = vfork();
+#endif
if (ret == 0)
server_job(dmix);
_exit(EXIT_SUCCESS);
--
2.14.3
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