From 016c402a937d71555d3f56d2c34afc82dda72d55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Mon, 29 Mar 2021 15:55:20 +0200
Subject: [PATCH] Build system: workaround for compilation under MSYS2
There is (on 2021-03-29) a problem in the -static-libgfortran linker option that
affects the Dynare++ binaries.
See https://github.com/msys2/MINGW-packages/issues/7023
and https://github.com/msys2/MINGW-packages/issues/6986
Until this is fixed, the workaround is to add the --default-image-base-low linker
option.
We do *not* want to do this when cross-compiling from Debian (because the option does
not exist there), hence we test for cross-compilation before applying the workaround.
---
configure.ac | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/configure.ac b/configure.ac
index 85c674df0a..5d8efa6ad8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,6 +47,20 @@ case ${host_os} in
;;
esac
+# Workaround for compilation under MSYS2.
+# There is (on 2021-03-29) a problem in the -static-libgfortran linker option that
+# affects the Dynare++ binaries.
+# See https://github.com/msys2/MINGW-packages/issues/7023
+# and https://github.com/msys2/MINGW-packages/issues/6986
+# Until this is fixed, the workaround is to add the --default-image-base-low linker
+# option.
+# We do *not* want to do this when cross-compiling from Debian (because the option does
+# not exist there), hence we test for cross-compilation before applying the workaround.
+AC_CANONICAL_BUILD
+if test "${host_os}" = mingw32 && test "${host_os}" = "${build_os}"; then
+ AM_LDFLAGS="$AM_LDFLAGS -Wl,--default-image-base-low"
+fi
+
# Use C++ for testing headers
AC_LANG([C++])
--
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