From f4b0948abd9cad576d2def3d1cd52b9ef956ef52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20P=C3=B6chtrager?= <t.poechtrager@gmail.com>
Date: Sat, 14 Sep 2019 11:37:05 +0200
Subject: [PATCH] Fix building GCC with 10.15 SDK

---
 build.sh                   |  9 +++++++++
 patches/gcc_availability.h | 10 ++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 patches/gcc_availability.h

diff --git a/build.sh b/build.sh
index 1872038..a7b235d 100755
--- a/build.sh
+++ b/build.sh
@@ -260,6 +260,15 @@ if [ $(osxcross-cmp ${SDK_VERSION/u/} ">=" 10.7) -eq 1 ]; then
     fi
     fi
   fi
+  if [ -f "usr/include/Availability.h" ]; then
+    if [ $(osxcross-cmp $SDK_VERSION "==" 10.15) -eq 1 ]; then
+      # 10.15 comes with a broken Availability.h header file
+      # which breaks building GCC
+      set +e
+      cat $PATCH_DIR/gcc_availability.h >> usr/include/Availability.h
+      set -e
+    fi
+  fi
   popd &>/dev/null
   echo ""
   if [ $I386_SUPPORTED -eq 1 ]; then
diff --git a/patches/gcc_availability.h b/patches/gcc_availability.h
new file mode 100644
index 0000000..42d6fef
--- /dev/null
+++ b/patches/gcc_availability.h
@@ -0,0 +1,10 @@
+#ifndef  __AVAILABILITY_HACK__
+#define  __AVAILABILITY_HACK__
+
+#ifndef __OSX_AVAILABLE_STARTING
+#define __OSX_AVAILABLE_STARTING(...)
+#define __OSX_AVAILABLE_BUT_DEPRECATED(...)
+#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(...)
+#endif
+
+#endif
\ No newline at end of file