Remove support for AIX

As discussed in the mailing list thread starting at
<https://lists.freedesktop.org/archives/libreoffice/2023-January/089808.html>
"Plan to remove dead C++ UNO bridge implementations (bridges/source/cpp_uno/*)",
the bridge implementation at bridges/source/cpp_uno/gcc3_aix_powerpc is
apparently dead and should thus be removed.  However, that was the only bridge
implementation for AIX, which implies that support for the AIX platform as a
whole is dead and should thus be removed.

Change-Id: I96de3f7f97d4fd770ff78256f0ea435383688be9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146057
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

3 files changed, 1 insertions, 145 deletions

diff --git a/external/icu/ExternalProject_icu.mk b/external/icu/ExternalProject_icu.mk
index 1fd0600fe5c6..5388eee58983 100644
--- a/external/icu/ExternalProject_icu.mk
+++ b/external/icu/ExternalProject_icu.mk
@@ -74,7 +74,7 @@ $(call gb_ExternalProject_get_state_target,icu,build) :
 			--disable-layout --disable-samples \
 			$(if $(filter FUZZERS,$(BUILD_TYPE)),--disable-release) \
 			$(if $(filter EMSCRIPTEN ANDROID,$(OS)),--disable-strict ac_cv_c_bigendian=no) \
-			$(if $(filter SOLARIS AIX,$(OS)),--disable-64bit-libs) \
+			$(if $(filter SOLARIS,$(OS)),--disable-64bit-libs) \
 			$(if $(filter TRUE,$(DISABLE_DYNLOADING)),\
 				--with-data-packaging=static --enable-static --disable-shared --disable-dyload,\
 				--disable-static --enable-shared $(if $(filter ANDROID,$(OS)),--with-library-suffix=lo)) \
diff --git a/external/icu/UnpackedTarball_icu.mk b/external/icu/UnpackedTarball_icu.mk
index f58223d5bc5f..b5b072b1e1e6 100644
--- a/external/icu/UnpackedTarball_icu.mk
+++ b/external/icu/UnpackedTarball_icu.mk
@@ -23,7 +23,6 @@ $(eval $(call gb_UnpackedTarball_set_patchlevel,icu,0))
 
 $(eval $(call gb_UnpackedTarball_add_patches,icu,\
 	external/icu/icu4c-build.patch.1 \
-	external/icu/icu4c-aix.patch.1 \
 	external/icu/icu4c-warnings.patch.1 \
 	external/icu/icu4c-macosx.patch.1 \
 	external/icu/icu4c-solarisgcc.patch.1 \
diff --git a/external/icu/icu4c-aix.patch.1 b/external/icu/icu4c-aix.patch.1
deleted file mode 100644
index bcbbe3ab9484..000000000000
--- a/external/icu/icu4c-aix.patch.1
+++ /dev/null
@@ -1,143 +0,0 @@
-diff -ur icu.org/source/config/mh-aix-gcc icu/source/config/mh-aix-gcc
---- icu.org/source/config/mh-aix-gcc	2021-10-28 18:04:57.000000000 +0200
-+++ icu/source/config/mh-aix-gcc	2021-11-15 18:35:48.737774348 +0100
-@@ -18,84 +18,29 @@
- GEN_DEPS.c=	$(CC) -E -MM $(DEFS) $(CPPFLAGS)
- GEN_DEPS.cc=	$(CXX) -E -MM $(DEFS) $(CPPFLAGS)
- 
--## Commands to link
--## We need to use the C++ linker, even when linking C programs, since
--##  our libraries contain C++ code (C++ static init not called)
--LINK.c=		$(AIX_PREDELETE) $(CXX) $(CXXFLAGS) $(LDFLAGS) 
--LINK.cc=	$(AIX_PREDELETE) $(CXX) $(CXXFLAGS) $(LDFLAGS) 
--
--## Shared library options
--LD_SOOPTIONS= -Wl,-bsymbolic
--
--## Commands to make a shared library
--SHLIB.c=    $(AIX_PREDELETE) $(CC) $(CFLAGS) $(LDFLAGS) -shared $(LD_SOOPTIONS)
--SHLIB.cc=   $(AIX_PREDELETE) $(CXX) $(CXXFLAGS) $(LDFLAGS) -shared $(LD_SOOPTIONS)
--
--## Compiler switch to embed a runtime search path
--LD_RPATH=	-I
--LD_RPATH_PRE=	
-+## Flags for position independent code
-+SHAREDLIBCFLAGS = -fPIC
-+SHAREDLIBCXXFLAGS = -fPIC
-+SHAREDLIBCPPFLAGS = -DPIC
-+
-+## Additional flags when building libraries and with threads
-+THREADSCPPFLAGS = -D_REENTRANT -D_THREAD_SAFE
-+LIBCPPFLAGS =
- 
--## enable the shared lib loader
--LDFLAGS += -Wl,-bbigtoc
-+LD_RPATH=
-+LD_RPATH_PRE=
- 
- ## These are the library specific LDFLAGS
- LDFLAGSICUDT=-nodefaultlibs -nostdlib
- 
--## We need to delete things prior to linking, or else we'll get
--## SEVERE ERROR: output file in use ..  on AIX. 
--## But, shell script version should NOT delete target as we don't
--## have $@ in that context.  (SH = only shell script, icu-config)
--AIX_PREDELETE=rm -f $@ ; 
--#SH# AIX_PREDELETE=
--
- ## Environment variable to set a runtime search path
- LDLIBRARYPATH_ENVVAR = LIBPATH
- 
--## Override Versioned target for a shared library.
--FINAL_SO_TARGET=  $(basename $(SO_TARGET))$(SO_TARGET_VERSION).$(SO)
--MIDDLE_SO_TARGET= $(basename $(SO_TARGET))$(SO_TARGET_VERSION_MAJOR).$(SO)
--SHARED_OBJECT = $(notdir $(FINAL_SO_TARGET:.$(SO)=.$(SOBJ)))
--SHARED_OBJECT_NO_VERSION = $(basename $(SO_TARGET)).$(SOBJ)
--
--# The following is for Makefile.inc's use.
--ICULIBSUFFIX_VERSION = $(LIB_VERSION_MAJOR)
--
--# this one is for icudefs.mk's use
--ifeq ($(ENABLE_SHARED),YES)
--SO_TARGET_VERSION_SUFFIX = $(SO_TARGET_VERSION_MAJOR)
--endif
--
--## Compiler switch to embed a library name. Not present on AIX.
--LD_SONAME = 
--
--## The type of assembly needed when pkgdata is used for generating shared libraries.
--GENCCODE_ASSEMBLY=-a xlc
--
- ## Shared object suffix
--SOBJ=   so
--# without the -brtl option, the library names use .a. AIX is funny that way.
--SO=	a
--A=	a
-+SO=	so
- 
- ## Non-shared intermediate object suffix
--STATIC_O = o
--
--## Special AIX rules
--
--## Build archive from shared object
--%.a : %.so
--	ln -f $< $(SHARED_OBJECT_NO_VERSION)
--	$(AR) $(ARFLAGS) $@ $(SHARED_OBJECT_NO_VERSION)
--	rm -f $(SHARED_OBJECT_NO_VERSION)
--$(LIBDIR)/%.a : %.so
--	ln -f $< $(SHARED_OBJECT_NO_VERSION)
--	$(AR) $(ARFLAGS) $@ $(SHARED_OBJECT_NO_VERSION)
--	rm -f $(SHARED_OBJECT_NO_VERSION)
--
--## Build import list from export list
--%.e : %.exp
--	@echo "Building an import list for $<"
--	@$(SHELL) -ec "echo '#! $*.a($*.so)' | cat - $< > $@"
-+STATIC_O = ao
- 
- ## Compilation rules
- %.$(STATIC_O): $(srcdir)/%.c
-@@ -123,10 +68,10 @@
- 		[ -s $@ ] || rm -f $@'
- 
- ## Versioned libraries rules
--%$(SO_TARGET_VERSION_MAJOR).$(SO): %$(SO_TARGET_VERSION).$(SO)
--	$(RM) $@ && ln -s ${*F}$(SO_TARGET_VERSION).$(SO) $@
--%.$(SO): %$(SO_TARGET_VERSION).$(SO)
--	$(RM) $@ && ln -s ${*F}$(SO_TARGET_VERSION).$(SO) $@
-+%.$(SO).$(SO_TARGET_VERSION_MAJOR): %.$(SO).$(SO_TARGET_VERSION)
-+	$(RM) $@ && ln -s ${<F} $@
-+%.$(SO): %.$(SO).$(SO_TARGET_VERSION_MAJOR)
-+	$(RM) $@ && ln -s ${*F}.$(SO).$(SO_TARGET_VERSION) $@
- 
- 
- ## BIR  - bind with internal references [so app data and icu data doesn't collide]
-diff -ur icu.org/source/tools/pkgdata/pkgdata.cpp icu/source/tools/pkgdata/pkgdata.cpp
---- icu.org/source/tools/pkgdata/pkgdata.cpp	2021-10-28 18:04:57.000000000 +0200
-+++ icu/source/tools/pkgdata/pkgdata.cpp	2021-11-15 18:28:38.342143852 +0100
-@@ -959,7 +959,7 @@
- 
-         uprv_strcat(pkgDataFlags[SO_EXT], ".");
-         uprv_strcat(pkgDataFlags[SO_EXT], pkgDataFlags[A_EXT]);
--#elif U_PLATFORM == U_PF_OS400 || defined(_AIX)
-+#elif U_PLATFORM == U_PF_OS400
-         sprintf(libFileNames[LIB_FILE_VERSION_TMP], "%s%s%s",
-                 libFileNames[LIB_FILE],
-                 FILE_EXTENSION_SEP,
-@@ -1439,15 +1439,6 @@
-                 pkgDataFlags[LDICUDTFLAGS],
-                 targetDir,
-                 libFileNames[LIB_FILE_CYGWIN_VERSION],
--#elif U_PLATFORM == U_PF_AIX
--        sprintf(cmd, "%s %s%s;%s %s -o %s%s %s %s%s %s %s",
--                RM_CMD,
--                targetDir,
--                libFileNames[LIB_FILE_VERSION_TMP],
--                pkgDataFlags[GENLIB],
--                pkgDataFlags[LDICUDTFLAGS],
--                targetDir,
--                libFileNames[LIB_FILE_VERSION_TMP],
- #else
-         sprintf(cmd, "%s %s -o %s%s %s %s%s %s %s",
-                 pkgDataFlags[GENLIB],