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Subject: meson: fix has_function fork detection (needs suitable include)
Author: Peter Seiderer <ps.rep...@gmx.net>
Date: Mon Dec 4 10:11:33 2023 +0100
- fix meson has_function('fork') detection, needs suitable include to avoid
false positive (see [1] for details)
Fixes:
.../bootlin-armv7m-uclibc/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real:
lib/libv4lconvert/libv4lconvert.a(helper.c.o): in function
`v4lconvert_helper_decompress':
helper.c:(.text+0x14e): undefined reference to `fork'
collect2: error: ld returned 1 exit status
[1] https://github.com/mesonbuild/meson/issues/7652
Signed-off-by: Peter Seiderer <ps.rep...@gmx.net>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
(cherry picked from commit 2909221e0fd293d2dbb865776645fa3ec06d4bd5)
Signed-off-by: Gregor Jasny <gja...@googlemail.com>
meson.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
---
http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=3854931cec552d01a703fe028cb5ce397f2d2269
diff --git a/meson.build b/meson.build
index ab6329767758..a859f3afedba 100644
--- a/meson.build
+++ b/meson.build
@@ -111,7 +111,7 @@ dep_threads = dependency('threads')
dep_x11 = dependency('x11', required : false)
dep_xmlrpc = dependency('xmlrpc', required : false)
-have_fork = cc.has_function('fork')
+have_fork = cc.has_function('fork', prefix: '#include <unistd.h>')
have_i2c_dev = cc.has_header('linux/i2c-dev.h')
if have_visibility
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