From 7b969bbb2e3a0ec9a173a7ddf276b2a03e14452b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Mon, 19 Mar 2018 23:46:02 +0200
Subject: [PATCH] Add support for building for windows on aarch64

Just as on windows/x86_64, "long" still is 32 bit; tweak the
arm/aarch64 ABI check to test sizeof(void*) instead of sizeof(long),
and use long long for mp_limb_t for mingw targets.
---
 acinclude.m4 | 4 ++--
 configure.ac | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 2ea5f5a..6eb7343 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -907,8 +907,8 @@ dnl  a workaround for a HP compiler bug.
 
 AC_DEFUN([GMP_C_TEST_SIZEOF],
 [echo "configure: testlist $2" >&AC_FD_CC
-[gmp_sizeof_type=`echo "$2" | sed 's/sizeof-\([a-z]*\).*/\1/'`]
-[gmp_sizeof_want=`echo "$2" | sed 's/sizeof-[a-z]*-\([0-9]*\).*/\1/'`]
+[gmp_sizeof_type=`echo "$2" | sed 's/sizeof-\([a-z\*]*\).*/\1/'`]
+[gmp_sizeof_want=`echo "$2" | sed 's/sizeof-[a-z\*]*-\([0-9]*\).*/\1/'`]
 AC_MSG_CHECKING([compiler $1 has sizeof($gmp_sizeof_type)==$gmp_sizeof_want])
 cat >conftest.c <<EOF
 [int
diff --git a/configure.ac b/configure.ac
index e42599b..071fff0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -602,8 +602,8 @@ case $host in
     CALLING_CONVENTIONS_OBJS='arm32call.lo arm32check.lo'
     CALLING_CONVENTIONS_OBJS_64=""
     cclist_64="gcc cc"
-    any_32_testlist="sizeof-long-4"
-    any_64_testlist="sizeof-long-8"
+    any_32_testlist="sizeof-void*-4"
+    any_64_testlist="sizeof-void*-8"
 
     # This is needed for clang, which is not content with flags like -mfpu=neon
     # alone.
@@ -612,6 +612,8 @@ case $host in
         gcc_cflags_fpmode="-mfloat-abi=softfp" ;;
       *-*-*eabihf)
         gcc_cflags_fpmode="-mfloat-abi=hard" ;;
+      *-*-mingw*)
+        limb_64=longlong ;;
     esac
 
     # FIXME: We make mandatory compiler options optional here.  We should
-- 
2.7.4