gpg4libre: cleanup gpgme & add gbuild lib for gpgmepp

This moves the external to gpgmepp, since that's what we _actually_
link against; plus tons of enablement for Windows build, mostly
related to linker probs integration.

There's still no good way to build a DLL with autotools, so we fall
back to gbuild manual make, see also tdf#91480

Change-Id: Ifd8217ef58536612d2389d48e343db133a13fb9c
Reviewed-on: https://gerrit.libreoffice.org/44970
Reviewed-by: Siegmund Gorr <siegmund.gorr@cib.de>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

14 files changed, 774 insertions, 0 deletions

diff --git a/external/gpgmepp/ExternalPackage_gpgmepp.mk b/external/gpgmepp/ExternalPackage_gpgmepp.mk
new file mode 100644
index 000000000000..d5285520619f
--- /dev/null
+++ b/external/gpgmepp/ExternalPackage_gpgmepp.mk
@@ -0,0 +1,30 @@
+# -*- 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 $(call gb_ExternalPackage_ExternalPackage,gpgmepp,gpgmepp))
+
+$(eval $(call gb_ExternalPackage_use_external_project,gpgmepp,gpgmepp))
+
+ifneq ($(DISABLE_DYNLOADING),TRUE)
+
+ifeq ($(OS),LINUX)
+
+$(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/libgpgmepp.so.6,lang/cpp/src/.libs/libgpgmepp.so.6.4.0))
+$(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/libgpgme.so.11,src/.libs/libgpgme.so.11.18.0))
+
+else ifeq ($(OS),MACOSX)
+
+$(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/libgpgmepp.6.dylib,lang/cpp/src/.libs/libgpgmepp.6.dylib))
+$(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/libgpgme.11.dylib,src/.libs/libgpgme.11.dylib))
+
+endif
+
+endif # $(DISABLE_DYNLOADING)
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/ExternalProject_gpgmepp.mk b/external/gpgmepp/ExternalProject_gpgmepp.mk
new file mode 100644
index 000000000000..4b69774771fd
--- /dev/null
+++ b/external/gpgmepp/ExternalProject_gpgmepp.mk
@@ -0,0 +1,66 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_ExternalProject_ExternalProject,gpgmepp))
+
+$(eval $(call gb_ExternalProject_register_targets,gpgmepp,\
+	build \
+))
+
+$(eval $(call gb_ExternalProject_use_autoconf,gpgmepp,build))
+
+$(eval $(call gb_ExternalProject_use_externals,gpgmepp,\
+       libgpg-error \
+       libassuan \
+))
+
+ifeq ($(COM),MSC)
+$(call gb_ExternalProject_get_state_target,gpgmepp,build):
+	$(call gb_ExternalProject_run,build,\
+		autoreconf \
+		&& ./configure \
+		   --disable-shared \
+		   --disable-languages \
+		   --disable-gpgconf-test \
+		   --disable-gpg-test \
+		   --disable-gpgsm-test \
+		   --disable-g13-test \
+		   --disable-glibtest \
+		   CFLAGS='$(CFLAGS) \
+				$(if $(ENABLE_OPTIMIZED), \
+					$(gb_COMPILEROPTFLAGS),$(gb_COMPILERNOOPTFLAGS)) \
+				$(if $(ENABLE_DEBUG),$(gb_DEBUG_CFLAGS)) \
+				$(if $(filter $(true),$(gb_SYMBOL)),$(gb_DEBUGINFO_FLAGS))' \
+		   --host=$(if $(filter INTEL,$(CPUNAME)),i686-mingw32,x86_64-w64-mingw32) \
+	  && $(MAKE) \
+	)
+else
+$(call gb_ExternalProject_get_state_target,gpgmepp,build):
+	$(call gb_ExternalProject_run,build,\
+		autoreconf \
+		&& ./configure \
+		   --enable-languages="cpp" \
+		   GPG_ERROR_CFLAGS="$(GPG_ERROR_CFLAGS)" \
+		   GPG_ERROR_LIBS="$(GPG_ERROR_LIBS)" \
+		   LIBASSUAN_CFLAGS="$(LIBASSUAN_CFLAGS)" \
+		   LIBASSUAN_LIBS="$(LIBASSUAN_LIBS)" \
+		   CFLAGS='$(CFLAGS) \
+				$(if $(ENABLE_OPTIMIZED), \
+					$(gb_COMPILEROPTFLAGS),$(gb_COMPILERNOOPTFLAGS)) \
+				$(if $(ENABLE_DEBUG),$(gb_DEBUG_CFLAGS)) \
+				$(if $(filter $(true),$(gb_SYMBOL)),$(gb_DEBUGINFO_FLAGS))' \
+		   $(if $(filter LINUX,$(OS)), \
+				'LDFLAGS=-Wl$(COMMA)-z$(COMMA)origin \
+					-Wl$(COMMA)-rpath$(COMMA)\$$$$ORIGIN') \
+		   $(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
+	  && $(MAKE) \
+	)
+endif
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/Library_gpgmepp.mk b/external/gpgmepp/Library_gpgmepp.mk
new file mode 100644
index 000000000000..7649753fe748
--- /dev/null
+++ b/external/gpgmepp/Library_gpgmepp.mk
@@ -0,0 +1,79 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,gpgmepp))
+
+$(eval $(call gb_Library_use_unpacked,gpgmepp,gpgmepp))
+
+$(eval $(call gb_Library_use_externals,gpgmepp,\
+	libgpg-error \
+	libassuan \
+))
+
+$(eval $(call gb_LinkTarget_use_external_project,\
+	$(call gb_Library_get_linktarget,gpgmepp),gpgmepp,full))
+
+$(eval $(call gb_Library_set_warnings_not_errors,gpgmepp))
+
+$(eval $(call gb_Library_set_include,gpgmepp,\
+    -I$(call gb_UnpackedTarball_get_dir,gpgmepp)/lang/cpp/src \
+    -I$(call gb_UnpackedTarball_get_dir,gpgmepp)/lang/cpp/src/interfaces \
+    -I$(call gb_UnpackedTarball_get_dir,gpgmepp) \
+    -I$(call gb_UnpackedTarball_get_dir,gpgmepp)/src \
+    -I$(call gb_UnpackedTarball_get_dir,libgpg-error)/src \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Library_add_libs,gpgmepp,\
+       ws2_32.lib shell32.lib \
+       -LIBPATH:$(call gb_UnpackedTarball_get_dir,gpgmepp)/src/.libs libgpgme.lib \
+))
+
+$(eval $(call gb_Library_add_defs,gpgmepp,\
+	-DHAVE_CONFIG_H \
+	-DBUILDING_GPGMEPP \
+	-DDLL_EXPORT \
+	-DPIC \
+))
+
+$(eval $(call gb_Library_set_generated_cxx_suffix,gpgmepp,cpp))
+
+$(eval $(call gb_Library_add_generated_exception_objects,gpgmepp,\
+	UnpackedTarball/gpgmepp/lang/cpp/src/callbacks \
+	UnpackedTarball/gpgmepp/lang/cpp/src/configuration \
+	UnpackedTarball/gpgmepp/lang/cpp/src/context \
+	UnpackedTarball/gpgmepp/lang/cpp/src/context_vanilla \
+	UnpackedTarball/gpgmepp/lang/cpp/src/data \
+	UnpackedTarball/gpgmepp/lang/cpp/src/decryptionresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/defaultassuantransaction \
+	UnpackedTarball/gpgmepp/lang/cpp/src/editinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/encryptionresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/engineinfo \
+	UnpackedTarball/gpgmepp/lang/cpp/src/eventloopinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/exception \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpgadduserideditinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpgagentgetinfoassuantransaction \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpggencardkeyinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpgsetexpirytimeeditinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpgsetownertrusteditinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/gpgsignkeyeditinteractor \
+	UnpackedTarball/gpgmepp/lang/cpp/src/importresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/key \
+	UnpackedTarball/gpgmepp/lang/cpp/src/keygenerationresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/keylistresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/scdgetinfoassuantransaction \
+	UnpackedTarball/gpgmepp/lang/cpp/src/signingresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/swdbresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/tofuinfo \
+	UnpackedTarball/gpgmepp/lang/cpp/src/trustitem \
+	UnpackedTarball/gpgmepp/lang/cpp/src/verificationresult \
+	UnpackedTarball/gpgmepp/lang/cpp/src/vfsmountresult \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/Makefile b/external/gpgmepp/Makefile
new file mode 100644
index 000000000000..569ad8a0ba7a
--- /dev/null
+++ b/external/gpgmepp/Makefile
@@ -0,0 +1,14 @@
+# -*- 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/.
+#
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/Module_gpgmepp.mk b/external/gpgmepp/Module_gpgmepp.mk
new file mode 100644
index 000000000000..1c13a2a5fcb8
--- /dev/null
+++ b/external/gpgmepp/Module_gpgmepp.mk
@@ -0,0 +1,31 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,gpgmepp))
+
+$(eval $(call gb_Module_add_targets,gpgmepp,\
+	UnpackedTarball_gpgmepp \
+	ExternalProject_gpgmepp \
+))
+
+ifeq ($(COM),MSC)
+
+$(eval $(call gb_Module_add_targets,gpgmepp,\
+	Library_gpgmepp \
+))
+
+else
+
+$(eval $(call gb_Module_add_targets,gpgmepp,\
+	ExternalPackage_gpgmepp \
+))
+
+endif
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/README b/external/gpgmepp/README
new file mode 100644
index 000000000000..220028e42471
--- /dev/null
+++ b/external/gpgmepp/README
@@ -0,0 +1,2 @@
+A library for easy access to GnuPG (GnuPG Made Easy)
+[https://www.gnupg.org/related_software/gpgme/index.html]
diff --git a/external/gpgmepp/UnpackedTarball_gpgmepp.mk b/external/gpgmepp/UnpackedTarball_gpgmepp.mk
new file mode 100644
index 000000000000..db8c398e3003
--- /dev/null
+++ b/external/gpgmepp/UnpackedTarball_gpgmepp.mk
@@ -0,0 +1,25 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_UnpackedTarball_UnpackedTarball,gpgmepp))
+
+$(eval $(call gb_UnpackedTarball_set_tarball,gpgmepp,$(GPGME_TARBALL)))
+
+$(eval $(call gb_UnpackedTarball_set_patchlevel,gpgmepp,0))
+
+$(eval $(call gb_UnpackedTarball_add_patches,gpgmepp, \
+    external/gpgmepp/find-libgpg-error-libassuan.patch \
+    external/gpgmepp/fix-autoconf-macros.patch \
+    external/gpgmepp/add-minimal-keyexport.patch \
+    $(if $(filter MSC,$(COM)),external/gpgmepp/w32-build-fixes.patch.1) \
+    $(if $(filter MSC,$(COM)),external/gpgmepp/w32-disable-docs.patch.1) \
+    $(if $(filter MSC,$(COM)),external/gpgmepp/w32-fix-win32-macro.patch.1) \
+    $(if $(filter MSC,$(COM)),external/gpgmepp/w32-fix-libtool.patch.1) \
+))
+# vim: set noet sw=4 ts=4:
diff --git a/external/gpgmepp/add-minimal-keyexport.patch b/external/gpgmepp/add-minimal-keyexport.patch
new file mode 100644
index 000000000000..abaeb15897fc
--- /dev/null
+++ b/external/gpgmepp/add-minimal-keyexport.patch
@@ -0,0 +1,68 @@
+--- lang/cpp/src/context.h.bak	2017-10-18 12:28:00.898945587 +0200
++++ lang/cpp/src/context.h	2017-10-18 12:28:35.794832395 +0200
+@@ -178,10 +178,10 @@
+     // Key Export
+     //
+ 
+-    GpgME::Error exportPublicKeys(const char *pattern, Data &keyData);
+-    GpgME::Error exportPublicKeys(const char *pattern[], Data &keyData);
+-    GpgME::Error startPublicKeyExport(const char *pattern, Data &keyData);
+-    GpgME::Error startPublicKeyExport(const char *pattern[], Data &keyData);
++    GpgME::Error exportPublicKeys(const char *pattern, Data &keyData, bool minimal=false);
++    GpgME::Error exportPublicKeys(const char *pattern[], Data &keyData, bool minimal=false);
++    GpgME::Error startPublicKeyExport(const char *pattern, Data &keyData, bool minimal=false);
++    GpgME::Error startPublicKeyExport(const char *pattern[], Data &keyData, bool minimal=false);
+ 
+     //
+     // Key Import
+--- lang/cpp/src/context.cpp.bak	2017-10-18 12:27:50.830978224 +0200
++++ lang/cpp/src/context.cpp	2017-10-18 12:30:13.278515603 +0200
+@@ -557,14 +557,14 @@
+     }
+ }
+ 
+-Error Context::exportPublicKeys(const char *pattern, Data &keyData)
++Error Context::exportPublicKeys(const char *pattern, Data &keyData, bool minimal)
+ {
+     d->lastop = Private::Export;
+     Data::Private *const dp = keyData.impl();
+-    return Error(d->lasterr = gpgme_op_export(d->ctx, pattern, 0, dp ? dp->data : 0));
++    return Error(d->lasterr = gpgme_op_export(d->ctx, pattern, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : 0));
+ }
+ 
+-Error Context::exportPublicKeys(const char *patterns[], Data &keyData)
++Error Context::exportPublicKeys(const char *patterns[], Data &keyData, bool minimal)
+ {
+     d->lastop = Private::Export;
+ #ifndef HAVE_GPGME_EXT_KEYLIST_MODE_EXTERNAL_NONBROKEN
+@@ -574,17 +574,17 @@
+     }
+ #endif
+     Data::Private *const dp = keyData.impl();
+-    return Error(d->lasterr = gpgme_op_export_ext(d->ctx, patterns, 0, dp ? dp->data : 0));
++    return Error(d->lasterr = gpgme_op_export_ext(d->ctx, patterns, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : 0));
+ }
+ 
+-Error Context::startPublicKeyExport(const char *pattern, Data &keyData)
++Error Context::startPublicKeyExport(const char *pattern, Data &keyData, bool minimal)
+ {
+     d->lastop = Private::Export;
+     Data::Private *const dp = keyData.impl();
+-    return Error(d->lasterr = gpgme_op_export_start(d->ctx, pattern, 0, dp ? dp->data : 0));
++    return Error(d->lasterr = gpgme_op_export_start(d->ctx, pattern, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : 0));
+ }
+ 
+-Error Context::startPublicKeyExport(const char *patterns[], Data &keyData)
++Error Context::startPublicKeyExport(const char *patterns[], Data &keyData, bool minimal)
+ {
+     d->lastop = Private::Export;
+ #ifndef HAVE_GPGME_EXT_KEYLIST_MODE_EXTERNAL_NONBROKEN
+@@ -594,7 +594,7 @@
+     }
+ #endif
+     Data::Private *const dp = keyData.impl();
+-    return Error(d->lasterr = gpgme_op_export_ext_start(d->ctx, patterns, 0, dp ? dp->data : 0));
++    return Error(d->lasterr = gpgme_op_export_ext_start(d->ctx, patterns, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : 0));
+ }
+ 
+ ImportResult Context::importKeys(const Data &data)
diff --git a/external/gpgmepp/find-libgpg-error-libassuan.patch b/external/gpgmepp/find-libgpg-error-libassuan.patch
new file mode 100644
index 000000000000..2ddd4d2f2e62
--- /dev/null
+++ b/external/gpgmepp/find-libgpg-error-libassuan.patch
@@ -0,0 +1,59 @@
+diff --git a/configure.ac b/configure.ac
+index f28480b..92a3e85 100644
+--- configure.ac
++++ configure.ac
+@@ -674,15 +674,34 @@ AC_CHECK_FUNCS(setlocale)
+ 
+ # Checking for libgpg-error.
+ have_gpg_error=no
+-AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION",
+-                  have_gpg_error=yes, have_gpg_error=no)
++if test "x${GPG_ERROR_CFLAGS}" = x; then
++  AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION",
++                have_gpg_error=yes, have_gpg_error=no)
++else
++  have_gpg_error=yes
++  GPG_ERROR_CFLAGS="$GPG_ERROR_CFLAGS"
++  GPG_ERROR_LIBS="$GPG_ERROR_LIBS"
++  AC_SUBST(GPG_ERROR_CFLAGS)
++  AC_SUBST(GPG_ERROR_LIBS)
++
++fi
++
+ AC_DEFINE(GPG_ERR_SOURCE_DEFAULT, GPG_ERR_SOURCE_GPGME,
+           [The default error source for GPGME.])
+ 
+ # And for libassuan.
+ have_libassuan=no
+-AM_PATH_LIBASSUAN("$NEED_LIBASSUAN_API:$NEED_LIBASSUAN_VERSION",
++if test "x${LIBASSUAN_CFLAGS}" = x; then
++  AM_PATH_LIBASSUAN("$NEED_LIBASSUAN_API:$NEED_LIBASSUAN_VERSION",
+                   have_libassuan=yes, have_libassuan=no)
++else
++  have_libassuan=yes
++  LIBASSUAN_CFLAGS="$LIBASSUAN_CFLAGS"
++  LIBASSUAN_LIBS="$LIBASSUAN_LIBS"
++  AC_SUBST(LIBASSUAN_CFLAGS)
++  AC_SUBST(LIBASSUAN_LIBS)
++fi
++
+ if test "$have_libassuan" = "yes"; then
+   AC_DEFINE_UNQUOTED(GPGME_LIBASSUAN_VERSION, "$libassuan_version",
+                      [version of the libassuan library])
+diff --git a/src/Makefile.am b/src/Makefile.am
+index ce6f1d4..6b1d835 100644
+--- src/Makefile.am
++++ src/Makefile.am
+@@ -97,10 +97,10 @@ endif
+ 
+ # We use a global CFLAGS setting for all library
+ # versions, because then every object file is only compiled once.
+-AM_CFLAGS = @LIBASSUAN_CFLAGS@ @GLIB_CFLAGS@
++AM_CFLAGS = @LIBASSUAN_CFLAGS@ @GPG_ERROR_CFLAGS@ @GLIB_CFLAGS@
+ 
+ gpgme_tool_SOURCES = gpgme-tool.c argparse.c argparse.h
+-gpgme_tool_LDADD = libgpgme.la @LIBASSUAN_LIBS@
++gpgme_tool_LDADD = libgpgme.la @LIBASSUAN_LIBS@ @GPG_ERROR_LIBS@
+ 
+ 
+ if HAVE_W32_SYSTEM
diff --git a/external/gpgmepp/fix-autoconf-macros.patch b/external/gpgmepp/fix-autoconf-macros.patch
new file mode 100644
index 000000000000..627c7b15247a
--- /dev/null
+++ b/external/gpgmepp/fix-autoconf-macros.patch
@@ -0,0 +1,39 @@
+diff -ur gpgme.org/configure.ac gpgme/configure.ac
+--- configure.ac	2017-02-16 15:18:45.051417378 +0100
++++ configure.ac~	2017-02-16 15:20:03.635059285 +0100
+@@ -35,6 +35,11 @@
+ # decimalized short revision number, a beta version string, and a flag
+ # indicating a development version (mym4_isgit). Note that the m4
+ # processing is done by autoconf and not during the configure run.
++m4_define([m4_chomp_all],
++[m4_format([[%.*s]], m4_bregexp(m4_translit([[$1]], [
++/], [/ ]), [/*$]), [$1])])
++
++m4_define([m4_esyscmd_s], [m4_chomp_all(m4_esyscmd([$1]))])
+ m4_define(mym4_version,
+           [mym4_version_major.mym4_version_minor.mym4_version_micro])
+ m4_define([mym4_revision],
+@@ -90,7 +90,22 @@
+ AC_CONFIG_MACRO_DIR([m4])
+ AC_CONFIG_SRCDIR(src/gpgme.h.in)
+ AC_CONFIG_HEADER(config.h)
+-AM_INIT_AUTOMAKE([serial-tests dist-bzip2 no-dist-gzip])
++
++dnl Initialize automake.  automake < 1.12 didn't have serial-tests and
++dnl gives an error if it sees this, but for automake >= 1.13
++dnl serial-tests is required so we have to include it.  Solution is to
++dnl test for the version of automake (by running an external command)
++dnl and provide it if necessary.  Note we have to do this entirely using
++dnl m4 macros since automake queries this macro by running
++dnl 'autoconf --trace ...'.
++m4_define([serial_tests], [
++    m4_esyscmd([automake --version |
++                head -1 |
++                awk '{split ($NF,a,"."); if (a[1] == 1 && a[2] >= 12) { print "serial-tests" }}'
++    ])
++])
++AM_INIT_AUTOMAKE(foreign serial_tests dist-bzip2 no-dist-gzip) dnl NB: Do not [quote] this parameter.
++
+ AM_MAINTAINER_MODE
+ AC_CANONICAL_HOST
+ AM_SILENT_RULES
diff --git a/external/gpgmepp/w32-build-fixes.patch.1 b/external/gpgmepp/w32-build-fixes.patch.1
new file mode 100644
index 000000000000..9bc8f52b4c64
--- /dev/null
+++ b/external/gpgmepp/w32-build-fixes.patch.1
@@ -0,0 +1,133 @@
+diff -ru gpgme.orig/m4/ax_cxx_compile_stdcxx.m4 gpgme/m4/ax_cxx_compile_stdcxx.m4
+--- gpgme.orig/m4/ax_cxx_compile_stdcxx.m4	2016-05-27 22:04:36.000000000 +0200
++++ gpgme/m4/ax_cxx_compile_stdcxx.m4	2017-09-29 17:34:49.795243600 +0200
+@@ -156,7 +156,7 @@
+ 
+ #error "This is not a C++ compiler"
+ 
+-#elif __cplusplus < 201103L
++#elif __cplusplus < 201103L && !(defined _MSC_VER)
+ 
+ #error "This is not a C++11 compiler"
+ 
+diff -ru gpgme.orig/src/dirinfo.c gpgme/src/dirinfo.c
+--- gpgme.orig/src/dirinfo.c	2017-03-21 11:09:41.000000000 +0100
++++ gpgme/src/dirinfo.c	2017-09-30 08:36:13.239279300 +0200
+@@ -33,6 +33,10 @@
+ 
+ DEFINE_STATIC_LOCK (dirinfo_lock);
+ 
++#ifndef F_OK
++#define F_OK 0
++#endif
++
+ /* Constants used internally to select the data.  */
+ enum
+   {
+diff -ru gpgme.orig/src/mbox-util.c gpgme/src/mbox-util.c
+--- gpgme.orig/src/mbox-util.c	2016-11-16 13:22:41.000000000 +0100
++++ gpgme/src/mbox-util.c	2017-09-30 08:18:29.270567500 +0200
+@@ -28,7 +28,9 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#if HAVE_UNISTD_H
+ #include <unistd.h>
++#endif
+ #include <errno.h>
+ 
+ #include "mbox-util.h"
+diff -ru gpgme.orig/src/priv-io.h gpgme/src/priv-io.h
+--- gpgme.orig/src/priv-io.h	2016-11-16 13:23:14.000000000 +0100
++++ gpgme/src/priv-io.h	2017-09-30 08:20:38.770562400 +0200
+@@ -36,6 +36,9 @@
+ #ifdef HAVE_SYS_TYPES_H
+ # include <sys/types.h>
+ #endif
++#if _MSC_VER
++typedef int pid_t;
++#endif
+ 
+ 
+ /* A single file descriptor passed to spawn.  For child fds, dup_to
+diff -ru gpgme.orig/src/util.h gpgme/src/util.h
+--- gpgme.orig/src/util.h	2017-03-28 11:41:30.000000000 +0200
++++ gpgme/src/util.h	2017-09-30 08:10:54.194049100 +0200
+@@ -39,6 +39,9 @@
+ #ifdef HAVE_UNISTD_H
+ # include <unistd.h>
+ #endif
++#ifdef _MSC_VER
++typedef int pid_t;
++#endif
+ 
+ #include "gpgme.h"
+ 
+diff -ru gpgme.orig/src/w32-util.c gpgme/src/w32-util.c
+--- gpgme.orig/src/w32-util.c	2017-03-09 09:01:10.000000000 +0100
++++ gpgme/src/w32-util.c	2017-09-30 08:32:02.114330500 +0200
+@@ -721,7 +721,8 @@
+       v /= 62;
+       XXXXXX[5] = letters[v % 62];
+ 
+-      fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
++      //fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
++      fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL);
+       if (fd >= 0)
+ 	{
+ 	  gpg_err_set_errno (save_errno);
+diff -ru gpgme.orig/src/Makefile.am gpgme/src/Makefile.am
+--- gpgme.orig/src/Makefile.am	2017-09-30 11:50:07.456960000 +0200
++++ gpgme/src/Makefile.am	2017-09-30 11:51:29.609649400 +0200
+@@ -26,7 +26,7 @@
+ m4data_DATA = gpgme.m4
+ nodist_include_HEADERS = gpgme.h
+ 
+-bin_PROGRAMS = gpgme-tool
++bin_PROGRAMS =
+ 
+ if BUILD_W32_GLIB
+ ltlib_gpgme_glib = libgpgme-glib.la
+@@ -99,8 +99,8 @@
+ # versions, because then every object file is only compiled once.
+ AM_CFLAGS = @LIBASSUAN_CFLAGS@ @GPG_ERROR_CFLAGS@ @GLIB_CFLAGS@
+ 
+-gpgme_tool_SOURCES = gpgme-tool.c argparse.c argparse.h
+-gpgme_tool_LDADD = libgpgme.la @LIBASSUAN_LIBS@ @GPG_ERROR_LIBS@
++gpgme_tool_SOURCES =
++gpgme_tool_LDADD =
+ 
+ 
+ if HAVE_W32_SYSTEM
+@@ -120,7 +120,7 @@
+ SUFFIXES = .rc .lo
+ 
+ .rc.lo:
+-	$(LTRCCOMPILE) -i "$<" -o "$@"
++	$(LTRCCOMPILE) -i $< -o $@
+ 
+ gpgme_res = versioninfo.lo
+ no_undefined = -no-undefined
+diff -ru gpgme.orig/src/vfs-mount.c gpgme/src/vfs-mount.c
+--- gpgme.orig/src/vfs-mount.c	2017-03-09 09:01:10.000000000 +0100
++++ gpgme/src/vfs-mount.c	2017-09-30 13:10:51.845807600 +0200
+@@ -68,7 +68,7 @@
+   if (err)
+     return err;
+ 
+-  if (! strcasecmp ("MOUNTPOINT", code))
++  if (! _stricmp ("MOUNTPOINT", code))
+     {
+       if (opd->result.mount_dir)
+ 	free (opd->result.mount_dir);
+diff -ur gpgmepp.org/src/w32-glib-io.c gpgmepp/src/w32-glib-io.c
+--- gpgmepp.org/src/w32-glib-io.c	2016-11-16 13:22:41.000000000 +0100
++++ gpgmepp/src/w32-glib-io.c	2017-11-20 06:40:44.793945300 +0100
+@@ -37,6 +37,7 @@
+ #ifdef HAVE_SYS_TYPES_H
+ # include <sys/types.h>
+ #endif
++#include <winsock2.h>
+ #include <glib.h>
+ #include <windows.h>
+ #include <io.h>
diff --git a/external/gpgmepp/w32-disable-docs.patch.1 b/external/gpgmepp/w32-disable-docs.patch.1
new file mode 100644
index 000000000000..603122131ea3
--- /dev/null
+++ b/external/gpgmepp/w32-disable-docs.patch.1
@@ -0,0 +1,15 @@
+Disable doc building the hard way - should rather be a config option
+like libgpg-error's --disable-doc
+
+diff -ur gpgmepp.org/Makefile.am gpgmepp/Makefile.am
+--- gpgmepp.org/Makefile.am	2016-11-16 13:20:18.000000000 +0100
++++ gpgmepp/Makefile.am	2017-11-20 15:34:49.086731000 +0100
+@@ -33,7 +33,7 @@
+ tests =
+ endif
+ 
+-SUBDIRS = src ${tests} doc lang
++SUBDIRS = src ${tests} lang
+ 
+ # Fix the version of the spec file and create a file named VERSION
+ # to be used for patch's Prereq: feature.
diff --git a/external/gpgmepp/w32-fix-libtool.patch.1 b/external/gpgmepp/w32-fix-libtool.patch.1
new file mode 100644
index 000000000000..9a7adf713694
--- /dev/null
+++ b/external/gpgmepp/w32-fix-libtool.patch.1
@@ -0,0 +1,38 @@
+Gross hack to make libtool work with gcc-wrapper - frontended
+link.exe on Windows. Make libtool ignore all libs & simply pass
+them on as-is to the linker
+
+A proper fix would be to make gcc-wrapper behave like gcc during
+linking, by accepting cygwin path names, and correctly expanding
+-l<short_lib_name> to lib<short_lib_name>.lib
+
+diff -ur gpgmepp.org/m4/libtool.m4 gpgmepp/m4/libtool.m4
+--- gpgmepp.org/m4/libtool.m4	2016-11-16 13:20:16.000000000 +0100
++++ gpgmepp/m4/libtool.m4	2017-11-21 22:00:05.006587800 +0100
+@@ -3209,24 +3209,11 @@
+   ;;
+ 
+ cygwin*)
+-  # func_win32_libid is a shell function defined in ltmain.sh
+-  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+-  lt_cv_file_magic_cmd='func_win32_libid'
++  lt_cv_deplibs_check_method=pass_all
+   ;;
+ 
+ mingw* | pw32*)
+-  # Base MSYS/MinGW do not provide the 'file' command needed by
+-  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+-  # unless we find 'file', for example because we are cross-compiling.
+-  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+-  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+-    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+-    lt_cv_file_magic_cmd='func_win32_libid'
+-  else
+-    # Keep this pattern in sync with the one in func_win32_libid.
+-    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+-    lt_cv_file_magic_cmd='$OBJDUMP -f'
+-  fi
++  lt_cv_deplibs_check_method=pass_all
+   ;;
+ 
+ cegcc*)
diff --git a/external/gpgmepp/w32-fix-win32-macro.patch.1 b/external/gpgmepp/w32-fix-win32-macro.patch.1
new file mode 100644
index 000000000000..70a8b5ffe6e8
--- /dev/null
+++ b/external/gpgmepp/w32-fix-win32-macro.patch.1
@@ -0,0 +1,175 @@
+diff -ur gpgmepp.org/lang/cpp/src/callbacks.cpp gpgmepp/lang/cpp/src/callbacks.cpp
+--- gpgmepp.org/lang/cpp/src/callbacks.cpp	2016-10-18 19:22:02.000000000 +0200
++++ gpgmepp/lang/cpp/src/callbacks.cpp	2017-11-20 18:03:04.290060900 +0100
+@@ -38,7 +38,9 @@
+ #include <cassert>
+ #include <cerrno>
+ #include <cstring>
++#if HAVE_UNISTD_H
+ #include <unistd.h>
++#endif
+ #include <stdlib.h>
+ 
+ static inline gpgme_error_t make_err_from_syserror()
+diff -ur gpgmepp.org/lang/cpp/src/data.h gpgmepp/lang/cpp/src/data.h
+--- gpgmepp.org/lang/cpp/src/data.h	2017-03-24 15:20:32.000000000 +0100
++++ gpgmepp/lang/cpp/src/data.h	2017-11-20 17:23:24.802711200 +0100
+@@ -31,6 +31,11 @@
+ #include <algorithm>
+ #include <memory>
+ 
++#ifdef _MSC_VER
++#  include <BaseTsd.h>
++typedef SSIZE_T ssize_t;
++#endif
++
+ namespace GpgME
+ {
+ 
+diff -ur gpgmepp.org/lang/cpp/src/editinteractor.cpp gpgmepp/lang/cpp/src/editinteractor.cpp
+--- gpgmepp.org/lang/cpp/src/editinteractor.cpp	2017-03-09 09:01:10.000000000 +0100
++++ gpgmepp/lang/cpp/src/editinteractor.cpp	2017-11-20 18:09:33.022674700 +0100
+@@ -30,9 +30,11 @@
+ 
+ #include <gpgme.h>
+ 
+-#ifdef _WIN32
++#ifdef _MSC_VER
+ # include <io.h>
+-#include <windows.h>
++# include <windows.h>
++# include <BaseTsd.h>
++  typedef SSIZE_T ssize_t;
+ #else
+ # include <unistd.h>
+ #endif
+diff -ur gpgmepp.org/lang/cpp/src/gpgmepp_export.h gpgmepp/lang/cpp/src/gpgmepp_export.h
+--- gpgmepp.org/lang/cpp/src/gpgmepp_export.h	2016-08-04 15:03:09.000000000 +0200
++++ gpgmepp/lang/cpp/src/gpgmepp_export.h	2017-11-20 16:57:47.805691100 +0100
+@@ -29,14 +29,14 @@
+ #  ifndef GPGMEPP_EXPORT
+ #    ifdef BUILDING_GPGMEPP
+         /* We are building this library */
+-#      ifdef WIN32
++#      ifdef _MSC_VER
+ #       define GPGMEPP_EXPORT __declspec(dllexport)
+ #      else
+ #       define GPGMEPP_EXPORT __attribute__((visibility("default")))
+ #      endif
+ #    else
+         /* We are using this library */
+-#      ifdef WIN32
++#      ifdef _MSC_VER
+ #       define GPGMEPP_EXPORT __declspec(dllimport)
+ #      else
+ #       define GPGMEPP_EXPORT __attribute__((visibility("default")))
+@@ -45,7 +45,7 @@
+ #  endif
+ 
+ #  ifndef GPGMEPP_NO_EXPORT
+-#    ifdef WIN32
++#    ifdef _MSC_VER
+ #     define GPGMEPP_NO_EXPORT
+ #    else
+ #     define GPGMEPP_NO_EXPORT __attribute__((visibility("hidden")))
+@@ -54,7 +54,11 @@
+ #endif
+ 
+ #ifndef GPGMEPP_DEPRECATED
+-#  define GPGMEPP_DEPRECATED __attribute__ ((__deprecated__))
++#  ifdef _MSC_VER
++#    define GPGMEPP_DEPRECATED __declspec(deprecated("deprecated"))
++#  else
++#    define GPGMEPP_DEPRECATED __attribute__ ((__deprecated__))
++#  endif
+ #endif
+ 
+ #ifndef GPGMEPP_DEPRECATED_EXPORT
+diff -ur gpgmepp.org/lang/cpp/src/interfaces/dataprovider.h gpgmepp/lang/cpp/src/interfaces/dataprovider.h
+--- gpgmepp.org/lang/cpp/src/interfaces/dataprovider.h	2016-05-17 14:32:37.000000000 +0200
++++ gpgmepp/lang/cpp/src/interfaces/dataprovider.h	2017-11-20 18:03:11.332715700 +0100
+@@ -29,6 +29,11 @@
+ 
+ #include <gpg-error.h>
+ 
++#ifdef _MSC_VER
++#  include <BaseTsd.h>
++typedef SSIZE_T ssize_t;
++#endif
++
+ namespace GpgME
+ {
+ 
+diff -ur gpgmepp.org/lang/cpp/src/key.cpp gpgmepp/lang/cpp/src/key.cpp
+--- gpgmepp.org/lang/cpp/src/key.cpp	2017-03-20 20:10:15.000000000 +0100
++++ gpgmepp/lang/cpp/src/key.cpp	2017-11-20 17:44:50.321858800 +0100
+@@ -33,10 +33,16 @@
+ #include <gpgme.h>
+ 
+ #include <string.h>
++#if HAVE_STRINGS_H
+ #include <strings.h>
++#endif
+ #include <istream>
+ #include <iterator>
+ 
++#ifdef _MSC_VER
++#  define strcasecmp _stricmp
++#endif
++
+ const GpgME::Key::Null GpgME::Key::null;
+ 
+ namespace GpgME
+diff -ur gpgmepp.org/lang/cpp/src/key.h gpgmepp/lang/cpp/src/key.h
+--- gpgmepp.org/lang/cpp/src/key.h	2017-03-20 20:10:15.000000000 +0100
++++ gpgmepp/lang/cpp/src/key.h	2017-11-20 17:07:51.551632000 +0100
+@@ -30,7 +30,6 @@
+ #include "gpgmefw.h"
+ 
+ #include <memory>
+-#include <sys/time.h>
+ 
+ #include <vector>
+ #include <algorithm>
+diff -ur gpgmepp.org/lang/qt/src/qgpgme_export.h gpgmepp/lang/qt/src/qgpgme_export.h
+--- gpgmepp.org/lang/qt/src/qgpgme_export.h	2016-11-03 17:32:30.000000000 +0100
++++ gpgmepp/lang/qt/src/qgpgme_export.h	2017-11-20 16:58:27.395388000 +0100
+@@ -39,14 +39,14 @@
+ #  ifndef QGPGME_EXPORT
+ #    ifdef BUILDING_QGPGME
+         /* We are building this library */
+-#      ifdef WIN32
++#      ifdef _WIN32
+ #       define QGPGME_EXPORT __declspec(dllexport)
+ #      else
+ #       define QGPGME_EXPORT __attribute__((visibility("default")))
+ #      endif
+ #    else
+         /* We are using this library */
+-#      ifdef WIN32
++#      ifdef _WIN32
+ #       define QGPGME_EXPORT __declspec(dllimport)
+ #      else
+ #       define QGPGME_EXPORT __attribute__((visibility("default")))
+@@ -55,7 +55,7 @@
+ #  endif
+ 
+ #  ifndef QGPGME_NO_EXPORT
+-#    ifdef WIN32
++#    ifdef _WIN32
+ #     define QGPGME_NO_EXPORT
+ #    else
+ #     define QGPGME_NO_EXPORT __attribute__((visibility("hidden")))
+@@ -64,7 +64,11 @@
+ #endif
+ 
+ #ifndef QGPGME_DEPRECATED
+-#  define QGPGME_DEPRECATED __attribute__ ((__deprecated__))
++#  ifdef _MSC_VER
++#    define QGPGME_DEPRECATED __declspec(deprecated("deprecated"))
++#  else
++#    define QGPGME_DEPRECATED __attribute__ ((__deprecated__))
++#  endif
+ #endif
+ 
+ #ifndef QGPGME_DEPRECATED_EXPORT