Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Eric Biggers <ebiggers@kernel.org>
To:     linux-ext4@vger.kernel.org
Subject: [PATCH 03/38] configure.ac: automatically add include/mingw/ headers
Date:   Sat, 21 Jan 2023 12:31:55 -0800
Message-Id: <20230121203230.27624-4-ebiggers@kernel.org>
In-Reply-To: <20230121203230.27624-1-ebiggers@kernel.org>
References: <20230121203230.27624-1-ebiggers@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Eric Biggers <ebiggers@google.com>

Since the include/mingw/ directory needs to be on the include path when
building for Windows with MinGW, add it to INCLUDES automatically, and
AC_DEFINE the corresponding HAVE_*_H constants.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 configure.ac | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/configure.ac b/configure.ac
index e3884db60..d62d99dc8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1036,6 +1036,17 @@ AC_CHECK_HEADERS(m4_flatten([
 	sys/wait.h
 	sys/xattr.h
 ]))
+case "$host_os" in
+mingw*)
+	# The above checks only detect system headers, not the headers in
+	# ./include/mingw/, so explicitly define them to be available.
+	AC_DEFINE(HAVE_LINUX_TYPES_H, 1)
+	AC_DEFINE(HAVE_SYS_STAT_H, 1)
+	AC_DEFINE(HAVE_SYS_SYSMACROS_H, 1)
+	AC_DEFINE(HAVE_SYS_TYPES_H, 1)
+	AC_DEFINE(HAVE_UNISTD_H, 1)
+	;;
+esac
 dnl Check where to find a dd(1) that supports iflag=fullblock
 dnl and oflag=append
 AC_MSG_CHECKING([for a dd(1) program that supports iflag=fullblock])
@@ -1710,6 +1721,11 @@ fi
 if test -n "$WITH_DIET_LIBC" ; then
 	INCLUDES="$INCLUDES -D_REENTRANT"
 fi
+case "$host_os" in
+mingw*)
+	INCLUDES=$INCLUDES' -I$(top_srcdir)/include/mingw'
+	;;
+esac
 AC_SUBST(INCLUDES)
 dnl
 dnl Build CFLAGS
-- 
2.39.0