From: Mike Gilbert <floppym@gentoo.org>
Date: Tue, 19 Apr 2016 18:27:22 +0000 (-0400)
Subject: build: Use AC_HEADER_MAJOR to find device macros
X-Git-Tag: 2.02-rc1~80
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a5b301e3adb8e054288518a325135a1883c1c6c;p=thirdparty%2Fgrub.git

build: Use AC_HEADER_MAJOR to find device macros

Depending on the OS/libc, device macros are defined in different
headers. This change ensures we include the right one.

sys/types.h - BSD
sys/mkdev.h - Sun
sys/sysmacros.h - glibc (Linux)

glibc currently pulls sys/sysmacros.h into sys/types.h, but this may
change in a future release.

https://sourceware.org/ml/libc-alpha/2015-11/msg00253.html
---

diff --git a/configure.ac b/configure.ac
index 57e17138e..9ddfc5323 100644
--- a/configure.ac
+++ b/configure.ac
@@ -388,7 +388,8 @@ fi
 
 # Check for functions and headers.
 AC_CHECK_FUNCS(posix_memalign memalign getextmntent)
-AC_CHECK_HEADERS(sys/param.h sys/mount.h sys/mnttab.h sys/mkdev.h limits.h)
+AC_CHECK_HEADERS(sys/param.h sys/mount.h sys/mnttab.h limits.h)
+AC_HEADER_MAJOR
 
 AC_CHECK_MEMBERS([struct statfs.f_fstypename],,,[$ac_includes_default
 #include <sys/param.h>
diff --git a/grub-core/osdep/devmapper/getroot.c b/grub-core/osdep/devmapper/getroot.c
index 05eda500a..72e558275 100644
--- a/grub-core/osdep/devmapper/getroot.c
+++ b/grub-core/osdep/devmapper/getroot.c
@@ -40,6 +40,12 @@
 #include <limits.h>
 #endif
 
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#endif
+
 #include <libdevmapper.h>
 
 #include <grub/types.h>
diff --git a/grub-core/osdep/devmapper/hostdisk.c b/grub-core/osdep/devmapper/hostdisk.c
index 19c1101fd..a697bcb4d 100644
--- a/grub-core/osdep/devmapper/hostdisk.c
+++ b/grub-core/osdep/devmapper/hostdisk.c
@@ -24,6 +24,11 @@
 #include <errno.h>
 #include <limits.h>
 
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#endif
 
 #ifdef HAVE_DEVICE_MAPPER
 # include <libdevmapper.h>
diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
index 10480b646..09e7e6e6d 100644
--- a/grub-core/osdep/linux/getroot.c
+++ b/grub-core/osdep/linux/getroot.c
@@ -35,6 +35,12 @@
 #include <limits.h>
 #endif
 
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#endif
+
 #include <grub/types.h>
 #include <sys/ioctl.h>         /* ioctl */
 #include <sys/mount.h>
diff --git a/grub-core/osdep/unix/getroot.c b/grub-core/osdep/unix/getroot.c
index 1079a919d..4bf37b027 100644
--- a/grub-core/osdep/unix/getroot.c
+++ b/grub-core/osdep/unix/getroot.c
@@ -51,8 +51,10 @@
 #endif
 
 #include <sys/types.h>
-#if defined(HAVE_SYS_MKDEV_H)
+#if defined(MAJOR_IN_MKDEV)
 #include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
 #endif
 
 #if defined(HAVE_LIBZFS) && defined(HAVE_LIBNVPAIR)