diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index 45eaad20..ce22d88d 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -293,6 +293,7 @@ patch_enable_all ()
 	enable_oleaut32_x86_64_Marshaller="$1"
 	enable_opengl32_Revert_Disable_Ext="$1"
 	enable_opengl32_glDebugMessageCallback="$1"
+	enable_qcap_O_CLOEXEC="$1"
 	enable_quartz_MediaSeeking_Positions="$1"
 	enable_quartz_Silence_FIXMEs="$1"
 	enable_rasapi32_RasEnumDevicesA="$1"
@@ -1098,6 +1099,9 @@ patch_enable ()
 		opengl32-glDebugMessageCallback)
 			enable_opengl32_glDebugMessageCallback="$2"
 			;;
+		qcap-O_CLOEXEC)
+			enable_qcap_O_CLOEXEC="$2"
+			;;
 		quartz-MediaSeeking_Positions)
 			enable_quartz_MediaSeeking_Positions="$2"
 			;;
@@ -6418,6 +6422,21 @@ if test "$enable_opengl32_glDebugMessageCallback" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset qcap-O_CLOEXEC
+# |
+# | This patchset fixes the following Wine bugs:
+# |   *	[#42478] Fix compile error when O_CLOEXEC is not defined
+# |
+# | Modified files:
+# |   *	dlls/qcap/v4l.c
+# |
+if test "$enable_qcap_O_CLOEXEC" -eq 1; then
+	patch_apply qcap-O_CLOEXEC/0001-qcap-Fix-compile-error-when-O_CLOEXEC-is-not-defined.patch
+	(
+		printf '%s\n' '+    { "Sebastian Lackner", "qcap: Fix compile error when O_CLOEXEC is not defined.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset quartz-MediaSeeking_Positions
 # |
 # | Modified files:
diff --git a/patches/qcap-O_CLOEXEC/0001-qcap-Fix-compile-error-when-O_CLOEXEC-is-not-defined.patch b/patches/qcap-O_CLOEXEC/0001-qcap-Fix-compile-error-when-O_CLOEXEC-is-not-defined.patch
new file mode 100644
index 00000000..e6564620
--- /dev/null
+++ b/patches/qcap-O_CLOEXEC/0001-qcap-Fix-compile-error-when-O_CLOEXEC-is-not-defined.patch
@@ -0,0 +1,35 @@
+From 9cdd8a9d8249736dc06f43edb70ca52a7ac63851 Mon Sep 17 00:00:00 2001
+From: Sebastian Lackner <sebastian@fds-team.de>
+Date: Sun, 5 Mar 2017 19:37:00 +0100
+Subject: qcap: Fix compile error when O_CLOEXEC is not defined.
+
+---
+ dlls/qcap/v4l.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/dlls/qcap/v4l.c b/dlls/qcap/v4l.c
+index d67df73b0cd..bbe3a8b1da5 100644
+--- a/dlls/qcap/v4l.c
++++ b/dlls/qcap/v4l.c
+@@ -71,6 +71,10 @@ WINE_DEFAULT_DEBUG_CHANNEL(qcap_v4l);
+ 
+ #ifdef VIDIOCMCAPTURE
+ 
++#ifndef O_CLOEXEC
++#define O_CLOEXEC 0
++#endif
++
+ static typeof(open) *video_open = open;
+ static typeof(close) *video_close = close;
+ static typeof(ioctl) *video_ioctl = ioctl;
+@@ -806,6 +810,7 @@ Capture * qcap_driver_init( IPin *pOut, USHORT card )
+         goto error;
+     }
+ 
++    fcntl(capBox->fd, F_SETFD, FD_CLOEXEC);
+     memset(&capa, 0, sizeof(capa));
+ 
+     if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
+-- 
+2.11.0
+
diff --git a/patches/qcap-O_CLOEXEC/definition b/patches/qcap-O_CLOEXEC/definition
new file mode 100644
index 00000000..4f8feb36
--- /dev/null
+++ b/patches/qcap-O_CLOEXEC/definition
@@ -0,0 +1 @@
+Fixes: [42478] Fix compile error when O_CLOEXEC is not defined