7 files changed, 131 insertions, 0 deletions
diff --git a/external/libffi/ExternalPackage_libffi.mk b/external/libffi/ExternalPackage_libffi.mk
new file mode 100644
index 0000000000..c524ef9028
--- /dev/null
+++ b/external/libffi/ExternalPackage_libffi.mk
@@ -0,0 +1,20 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_ExternalPackage_ExternalPackage,libffi,libffi))
+
+$(eval $(call gb_ExternalPackage_use_external_project,libffi,libffi))
+
+ifeq ($(COM),MSC)
+$(eval $(call gb_ExternalPackage_add_files,libffi,$(LIBO_LIB_FOLDER)/python-core-$(PYTHON_VERSION)/lib, \
+    $(HOST_PLATFORM)/.libs/libffi-8.dll \
+))
+endif
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/libffi/ExternalProject_libffi.mk b/external/libffi/ExternalProject_libffi.mk
new file mode 100644
index 0000000000..2e60dd4801
--- /dev/null
+++ b/external/libffi/ExternalProject_libffi.mk
@@ -0,0 +1,52 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_ExternalProject_ExternalProject,libffi))
+
+$(eval $(call gb_ExternalProject_register_targets,libffi,\
+	build \
+))
+
+# set prefix so that it ends up in libffi.pc so that pkg-config in python3 works
+# For a static Windows build, change CPPFLAGS to include -D_LIB and --disable-static
+# Also remove the ExternalPackage in that case
+
+libffi_WIN_PLATFORM := $(strip \
+    $(if $(filter INTEL,$(CPUNAME)),32) \
+    $(if $(filter X86_64,$(CPUNAME)),64) \
+    $(if $(filter AARCH64,$(CPUNAME)),arm64) \
+    )
+
+$(call gb_ExternalProject_get_state_target,libffi,build):
+	$(call gb_Trace_StartRange,libffi,EXTERNAL)
+	$(call gb_ExternalProject_run,build,\
+		export LIB="$(ILIB)" && \
+		MAKE=$(MAKE) $(gb_RUN_CONFIGURE) ./configure \
+			--enable-option-checking=fatal \
+			$(gb_CONFIGURE_PLATFORMS) \
+			$(if $(filter LINUX,$(OS)), \
+			    --disable-shared \
+			    CC="$(CC) -fvisibility=hidden" \
+				--with-pic \
+				--enable-portable-binary) \
+			$(if $(filter WNT,$(OS)), \
+			    --disable-static \
+			    CC="$(call gb_UnpackedTarball_get_dir,libffi)/msvcc.sh -m$(libffi_WIN_PLATFORM)" \
+			    CXX="$(call gb_UnpackedTarball_get_dir,libffi)/msvcc.sh -m$(libffi_WIN_PLATFORM)" \
+				LD='link' \
+				CPP='cl -nologo -EP' \
+				CXXCPP='cl -nologo -EP' \
+				CPPFLAGS="-DFFI_BUILDING_DLL $(SOLARINC)") \
+			--prefix=$(call gb_UnpackedTarball_get_dir,libffi)/$(HOST_PLATFORM) \
+			--disable-docs \
+		&& $(MAKE) \
+	)
+	$(call gb_Trace_EndRange,libffi,EXTERNAL)
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/libffi/Makefile b/external/libffi/Makefile
new file mode 100644
index 0000000000..e4968cf85f
--- /dev/null
+++ b/external/libffi/Makefile
@@ -0,0 +1,7 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/libffi/Module_libffi.mk b/external/libffi/Module_libffi.mk
new file mode 100644
index 0000000000..ace75480ab
--- /dev/null
+++ b/external/libffi/Module_libffi.mk
@@ -0,0 +1,18 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,libffi))
+
+$(eval $(call gb_Module_add_targets,libffi,\
+	UnpackedTarball_libffi \
+	ExternalProject_libffi \
+	ExternalPackage_libffi \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/libffi/README b/external/libffi/README
new file mode 100644
index 0000000000..cdf7fa937b
--- /dev/null
+++ b/external/libffi/README
@@ -0,0 +1,3 @@
+libffi is required to build CPython's ctypes module
+
+https://sourceware.org/libffi/
diff --git a/external/libffi/UnpackedTarball_libffi.mk b/external/libffi/UnpackedTarball_libffi.mk
new file mode 100644
index 0000000000..26436b3301
--- /dev/null
+++ b/external/libffi/UnpackedTarball_libffi.mk
@@ -0,0 +1,20 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_UnpackedTarball_UnpackedTarball,libffi))
+
+$(eval $(call gb_UnpackedTarball_set_tarball,libffi,$(LIBFFI_TARBALL)))
+
+$(eval $(call gb_UnpackedTarball_set_patchlevel,libffi,0))
+
+$(eval $(call gb_UnpackedTarball_add_patches,libffi, \
+    external/libffi/implicit-function-declaration.patch \
+)) \
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/libffi/implicit-function-declaration.patch b/external/libffi/implicit-function-declaration.patch
new file mode 100644
index 0000000000..294a5eff64
--- /dev/null
+++ b/external/libffi/implicit-function-declaration.patch
@@ -0,0 +1,11 @@
+--- src/tramp.c
++++ src/tramp.c
+@@ -55,6 +55,8 @@
+ #include <limits.h>
+ #endif
+ #endif
++
++int open_temp_exec_file (void);
+ 
+ /*
+  * Each architecture defines static code for a trampoline code table. The