Remove MinGW support

In OOo times, there'd originally been efforts to allow building on Windows with
MinGW.  Later, in LO times, this has been shifted to an attempt of cross-
compiling for Windows on Linux.  That attempt can be considered abandoned, and
the relevant code rotting.

Due to this heritage, there are now three kinds of MinGW-specific code in LO:

* Code from the original OOo native Windows effort that is no longer relevant
for the LO cross-compilation effort, but has never been removed properly.

* Code from the original OOo native Windows effort that is re-purposed for the
LO cross-compilation effort.

* Code that has been added specifially for the LO cross-compilation effort.

All three kinds of code are removed.

(An unrelated, remaining use of MinGW is for --enable-build-unowinreg, utilizing
--with-mingw-cross-compiler, MINGWCXX, and MINGWSTRIP.)

Change-Id: I49daad8669b4cbe49fa923050c4a4a6ff7dda568
Reviewed-on: https://gerrit.libreoffice.org/34127
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

3 files changed, 2 insertions, 75 deletions

diff --git a/external/liblangtag/ExternalProject_langtag.mk b/external/liblangtag/ExternalProject_langtag.mk
index eacf41db28a4..d20d7dd7fd85 100644
--- a/external/liblangtag/ExternalProject_langtag.mk
+++ b/external/liblangtag/ExternalProject_langtag.mk
@@ -30,12 +30,11 @@ $(call gb_ExternalProject_get_state_target,langtag,build):
 		$(if $(filter TRUE,$(HAVE_GCC_BUILTIN_ATOMIC)),"lt_cv_has_atomic=yes","lt_cv_has_atomic=no") \
 		$(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM) "ac_cv_va_copy=no") \
 		LIBXML2_CFLAGS="$(LIBXML_CFLAGS)" \
-		LIBXML2_LIBS="$(if $(filter WNTMSC,$(OS)$(COM)),-L$(call gb_UnpackedTarball_get_dir,xml2)/win32/bin.msvc -llibxml2,$(LIBXML_LIBS))" \
+		LIBXML2_LIBS="$(if $(filter WNT,$(OS)),-L$(call gb_UnpackedTarball_get_dir,xml2)/win32/bin.msvc -llibxml2,$(LIBXML_LIBS))" \
 		$(if $(filter MACOSX,$(OS)),--prefix=/@.__________________________________________________URELIB) \
 		$(if $(filter-out LINUX FREEBSD,$(OS)),,LDFLAGS="-Wl$(COMMA)-z$(COMMA)origin -Wl$(COMMA)-rpath,\\"\$$\$$ORIGIN) \
 		$(if $(filter-out SOLARIS,$(OS)),,LDFLAGS="-Wl$(COMMA)-z$(COMMA)origin -Wl$(COMMA)-R$(COMMA)\\"\$$\$$ORIGIN) \
-		$(if $(filter-out WNTGCC,$(OS)$(COM)),,LDFLAGS="-Wl$(COMMA)--enable-runtime-pseudo-reloc-v2") \
-		&& $(if $(filter WNTMSC,$(OS)$(COM)),\
+		&& $(if $(filter WNT,$(OS)),\
 			REAL_CC="$(shell cygpath -w $(lastword $(filter-out -%,$(CC))))" \
 			REAL_CC_FLAGS="$(filter -%,$(CC))") \
 		   $(if $(verbose),V=1) \
diff --git a/external/liblangtag/UnpackedTarball_langtag.mk b/external/liblangtag/UnpackedTarball_langtag.mk
index 47505f85859c..d8fccf261512 100644
--- a/external/liblangtag/UnpackedTarball_langtag.mk
+++ b/external/liblangtag/UnpackedTarball_langtag.mk
@@ -23,14 +23,6 @@ $(eval $(call gb_UnpackedTarball_add_patches,langtag,\
 endif
 endif
 
-ifeq ($(OS),WNT)
-ifeq ($(COM),GCC)
-$(eval $(call gb_UnpackedTarball_add_patches,langtag,\
-	external/liblangtag/liblangtag-0.5.1-mingw.patch \
-))
-endif
-endif
-
 $(eval $(call gb_UnpackedTarball_add_patches,langtag, \
 	$(if $(SYSTEM_LIBXML),,external/liblangtag/langtag-libtool-rpath.patch.0) \
     external/liblangtag/clang-cl.patch.0 \
diff --git a/external/liblangtag/liblangtag-0.5.1-mingw.patch b/external/liblangtag/liblangtag-0.5.1-mingw.patch
deleted file mode 100644
index 54790e99a0c7..000000000000
--- a/external/liblangtag/liblangtag-0.5.1-mingw.patch
+++ /dev/null
@@ -1,64 +0,0 @@
---- misc/liblangtag-0.4.0/liblangtag/lt-ext-module.c	2013-06-14 15:06:13.629182430 +0100
-+++ misc/liblangtag-0.4.0/liblangtag/lt-ext-module.c	2013-06-14 15:06:43.537534204 +0100
-@@ -608,8 +608,8 @@
- 			size_t len;
- 
- 			while (1) {
--				if (readdir_r(dir, &dent, &dresult) || dresult == NULL)
--					break;
-+/*				if (readdir_r(dir, &dent, &dresult) || dresult == NULL)
-+					break;*/ abort(); /* we do not use liblangtag-gobject anyway */
- 
- 				len = strlen(dent.d_name);
- 				if (len > suffix_len &&
---- misc/liblangtag-0.4.0/liblangtag/Makefile.am	2013-06-14 15:06:13.636182512 +0100
-+++ misc/liblangtag-0.4.0/liblangtag/Makefile.am	2013-06-14 15:08:53.556063464 +0100
-@@ -211,6 +211,7 @@
- liblangtag_la_LDFLAGS =						\
- 	$(LDFLAGS)						\
- 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
-+	-no-undefined                                           \
- 	$(NULL)
- 
- -include $(top_srcdir)/git.mk
---- misc/liblangtag-0.4.0/liblangtag/Makefile.in	2013-06-14 15:06:13.636182512 +0100
-+++ misc/liblangtag-0.4.0/liblangtag/Makefile.in	2013-06-14 15:09:07.204223994 +0100
-@@ -576,6 +576,7 @@
- liblangtag_la_LDFLAGS = \
- 	$(LDFLAGS)						\
- 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
-+	-no-undefined                                           \
- 	$(NULL)
- 
- all: $(BUILT_SOURCES)
---- misc/liblangtag-0.4.0/liblangtag-gobject/Makefile.am	2013-06-14 15:06:13.648182653 +0100
-+++ misc/liblangtag-0.4.0/liblangtag-gobject/Makefile.am	2013-06-14 15:09:27.122458271 +0100
-@@ -149,6 +149,7 @@
- liblangtag_gobject_la_LDFLAGS =						\
- 	$(LDFLAGS)							\
- 	-version-info $(LT_G_CURRENT):$(LT_G_REVISION):$(LT_G_AGE)	\
-+	-no-undefined                                           \
- 	$(NULL)
- #
- if HAVE_INTROSPECTION
---- misc/liblangtag-0.4.0/liblangtag-gobject/Makefile.in	2013-06-14 15:06:13.648182653 +0100
-+++ misc/liblangtag-0.4.0/liblangtag-gobject/Makefile.in	2013-06-14 15:09:33.099528574 +0100
-@@ -476,6 +476,7 @@
- liblangtag_gobject_la_LDFLAGS = \
- 	$(LDFLAGS)							\
- 	-version-info $(LT_G_CURRENT):$(LT_G_REVISION):$(LT_G_AGE)	\
-+	-no-undefined                                           \
- 	$(NULL)
- 
- #
---- misc/liblangtag-0.4.0/Makefile.am	2013-06-14 15:06:13.652182700 +0100
-+++ misc/liblangtag-0.4.0/Makefile.am	2013-06-14 15:06:43.539534228 +0100
-@@ -6,7 +6,7 @@
- SUBDIRS += liblangtag-gobject
- endif
- #SUBDIRS += docs tests
--SUBDIRS += tests
-+#SUBDIRS += tests
- 
- ACLOCAL_AMFLAGS = -I m4macros
-