42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
From 00b64fca55a3a009c9d0e391c85f4fd3291e5d12 Mon Sep 17 00:00:00 2001
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From: Ramiro Polla <ramiro.polla@gmail.com>
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Date: Thu, 29 Aug 2024 15:40:00 +0200
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Subject: [PATCH] configure: improve check for POSIX ioctl
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Instead of relying on system #ifdefs which may or may not be correct,
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detect the POSIX ioctl signature at configure time.
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---
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configure | 2 ++
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libavdevice/v4l2.c | 2 +-
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2 files changed, 3 insertions(+), 1 deletion(-)
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--- a/configure
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+++ b/configure
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@@ -2450,6 +2450,7 @@ HAVE_LIST="
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opencl_vaapi_intel_media
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perl
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pod2man
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+ posix_ioctl
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texi2html
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xmllint
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zlib_gzip
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@@ -6988,6 +6989,7 @@ xmllint --version > /dev/null 2>&1 && e
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check_headers linux/fb.h
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check_headers linux/videodev2.h
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test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
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+test_code cc sys/ioctl.h "int ioctl(int, int, ...)" && enable posix_ioctl
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# check V4L2 codecs available in the API
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if enabled v4l2_m2m; then
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--- a/libavdevice/v4l2.c
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+++ b/libavdevice/v4l2.c
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@@ -107,7 +107,7 @@ struct video_data {
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int (*open_f)(const char *file, int oflag, ...);
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int (*close_f)(int fd);
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int (*dup_f)(int fd);
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-#if defined(__sun) || defined(__BIONIC__) || defined(__musl__) /* POSIX-like */
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+#if HAVE_POSIX_IOCTL
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int (*ioctl_f)(int fd, int request, ...);
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#else
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int (*ioctl_f)(int fd, unsigned long int request, ...);
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