From ca47ba3119365eafac0ab25a86cab9d9a1b29bd4 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Sat, 30 Sep 2023 06:38:53 +0100
Subject: [PATCH] test: handle POSIX ioctl prototype

glibc has the following prototype for ioctl: int ioctl(int fd, unsigned long request, ...)
POSIX (inc. musl) has the following for ioctl: int ioctl(int fd, int request, ...)

Check which prototype is used in <sys/ioctl.h> to avoid a conflict and conditionally
define the right one for the system.

Bug: https://bugs.gentoo.org/914921
Signed-off-by: Sam James <sam@gentoo.org>
Upstream-Status: Backport [https://github.com/linux-nvme/libnvme/commit/ca47ba3119365eafac0ab25a86cab9d9a1b29bd4]
---
 meson.build       | 10 ++++++++++
 test/ioctl/mock.c |  6 +++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 6fcf1da..2c979cc 100644
--- a/meson.build
+++ b/meson.build
@@ -230,6 +230,16 @@ conf.set(
     ),
     description: 'Is network address and service translation available'
 )
+conf.set(
+    'HAVE_GLIBC_IOCTL',
+    cc.compiles(
+        '''#include <sys/ioctl.h>
+        int ioctl(int fd, unsigned long request, ...);
+        ''',
+        name: 'ioctl has glibc-style prototype'
+    ),
+    description: 'Is ioctl the glibc interface (rather than POSIX)'
+)
 
 if cc.has_function_attribute('fallthrough')
   conf.set('fallthrough', '__attribute__((__fallthrough__))')
diff --git a/test/ioctl/mock.c b/test/ioctl/mock.c
index e917244..5d2ac94 100644
--- a/test/ioctl/mock.c
+++ b/test/ioctl/mock.c
@@ -114,7 +114,11 @@ void end_mock_cmds(void)
 	} \
 })
 
+#ifdef HAVE_GLIBC_IOCTL
 int ioctl(int fd, unsigned long request, ...)
+#else
+int ioctl(int fd, int request, ...)
+#endif
 {
 	struct mock_cmds *mock_cmds;
 	bool result64;
@@ -141,7 +145,7 @@ int ioctl(int fd, unsigned long request, ...)
 		result64 = true;
 		break;
 	default:
-		fail("unexpected %s %lu", __func__, request);
+		fail("unexpected %s %lu", __func__, (unsigned long) request);
 	}
 	check(mock_cmds->remaining_cmds,
 	      "unexpected %s command", mock_cmds->name);
-- 
2.40.1