From b4b3e60a2cbe169003d4d84839ec0cb56db13f22 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@sury.org>
Date: Tue, 23 Apr 2013 05:36:16 +0200
Subject: [PATCH] Define BGDWIN32 on MinGW when using autotools

---
 configure.ac |  6 ++++++
 m4/w32.m4    | 11 +++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 m4/w32.m4

diff --git a/configure.ac b/configure.ac
index fd9cb50..b2e3435 100644
--- a/configure.ac
+++ b/configure.ac
@@ -291,6 +291,12 @@ CFLAGS="$CFLAGS $CFLAG_VISIBILITY"
 
 AX_PTHREAD()
 
+MINGW_AC_WIN32_NATIVE_HOST()
+
+if test "$ac_cv_mingw_cv_win32_host" = yes; then
+AC_DEFINE([BGDWIN32], [], [Define is you are building for Win32 API])
+fi
+
 dnl report configuration
 AC_MSG_RESULT([
 ** Configuration summary for $PACKAGE $VERSION:
diff --git a/m4/w32.m4 b/m4/w32.m4
new file mode 100644
index 0000000..fbcc541
--- /dev/null
+++ b/m4/w32.m4
@@ -0,0 +1,11 @@
+# MINGW_AC_WIN32_NATIVE_HOST
+# --------------------------
+# Check if the runtime platform is a native Win32 host.
+#
+AC_DEFUN([MINGW_AC_WIN32_NATIVE_HOST],
+[AC_CACHE_CHECK([whether we are building for a Win32 host], [mingw_cv_win32_host],
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#ifdef _WIN32
+ choke me
+#endif]])], [mingw_cv_win32_host=no], [mingw_cv_win32_host=yes]))dnl
+])# MINGW_AC_WIN32_NATIVE_HOST