Message ID | 20240111103300.68446-1-martin@martin.st |
---|---|
State | New |
Headers | show |
Series | [FFmpeg-devel] configure: Check for the header sys/mmap.h when checking for mmap | expand |
Context | Check | Description |
---|---|---|
yinshiyou/make_loongarch64 | success | Make finished |
yinshiyou/make_fate_loongarch64 | success | Make fate finished |
andriy/make_x86 | success | Make finished |
andriy/make_fate_x86 | success | Make fate finished |
There maybe a spelling mistake, which in "check_func_headers sys/mman.h mmap".
It looks like should be "sys/mmap.h"
Thanks
------------------ Original ------------------
From: "FFmpeg development discussions and patches" <martin@martin.st>;
Date: Thu, Jan 11, 2024 06:33 PM
To: "ffmpeg-devel"<ffmpeg-devel@ffmpeg.org>;
Subject: [FFmpeg-devel] [PATCH] configure: Check for the header sys/mmap.h when checking for mmap
Whenever mmap is used, we include sys/mmap.h unconditionally
within HAVE_MMAP ifdefs.
When building for a system (e.g. mingw) that normally lacks the
mmap function, but if building with profiling enabled, the
profiling runtime which gets linked in in each test executable,
can contain a function named mmap, causing stray detection of it.
This fixes an issue reported at
https://github.com/mstorsjo/llvm-mingw/issues/390.
---
configure | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure b/configure
index 0b5e83bd20..99fa5260a4 100755
--- a/configure
+++ b/configure
@@ -6457,7 +6457,7 @@ check_func getrusage
check_func gettimeofday
check_func isatty
check_func mkstemp
-check_func mmap
+check_func_headers sys/mman.h mmap
check_func mprotect
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
On Thu, 11 Jan 2024, 徐福隆 wrote: > There maybe a spelling mistake, which in "check_func_headers sys/mman.h > mmap". > It looks like should be "sys/mmap.h" No, this is not a mistake, this is the name of the header. Have a look at libavutil/file.c or libswscale/utils.c, both which have this: #if HAVE_MMAP #include <sys/mman.h> ... // Martin
diff --git a/configure b/configure index 0b5e83bd20..99fa5260a4 100755 --- a/configure +++ b/configure @@ -6457,7 +6457,7 @@ check_func getrusage check_func gettimeofday check_func isatty check_func mkstemp -check_func mmap +check_func_headers sys/mman.h mmap check_func mprotect # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt