fdo#42865: libexttextcat,lingucomponent: no mapfile

In order to not have the offending local _ZNSs4_Rep20_S_empty_rep_storageE
symbol in libguesslanglo.so, build both it and libexttextcat
with hidden visibility.

libexttextcat/libexttextcat-3.2.0-visibility.patch

+--- misc/libexttextcat-3.2.0/src/makefile.mk	2011-10-07 00:09:38.000000000 +0200
++++ misc/build/libexttextcat-3.2.0/src/makefile.mk	2011-11-15 13:57:19.742958488 +0100
+@@ -33,6 +33,7 @@
+ 
+ USE_DEFFILE=TRUE
+ EXTERNAL_WARNINGS_NOT_ERRORS := TRUE
++VISIBILITY_HIDDEN=TRUE
+ UWINAPILIB=
+ 
+ .INCLUDE : settings.mk

libexttextcat/makefile.mk

@@ -47,8 +47,12 @@ all:
 TARFILE_NAME=libexttextcat-3.2.0
 TARFILE_MD5=e1c178b18f130b40494561f02bc1a948
 TARFILE_ROOTDIR=libexttextcat-3.2.0
+PATCH_FILES=libexttextcat-3.2.0-visibility.patch
 
 .IF "$(GUI)"=="UNX"
+.IF "$(HAVE_GCC_VISIBILITY_FEATURE)" == "TRUE"
+EXTRA_CFLAGS+=-fvisibility=hidden
+.ENDIF
 #relative to CONFIGURE_DIR
 CONFIGURE_ACTION=configure --disable-shared --with-pic CFLAGS="$(ARCH_FLAGS) $(EXTRA_CFLAGS)"
 CONFIGURE_FLAGS=$(eq,$(OS),MACOSX CPPFLAGS="$(EXTRA_CDEFS)" $(NULL))

lingucomponent/source/languageguessing/makefile.mk

@@ -31,6 +31,7 @@ PRJNAME=lingucomponent
 TARGET=guesslang
 
 ENABLE_EXCEPTIONS=TRUE
+VISIBILITY_HIDDEN=TRUE
 
 #----- Settings ---------------------------------------------------------
 
@@ -71,13 +72,11 @@ SHL1STDLIBS= \
         $(UNOTOOLSLIB)
 
 # build DLL
+SHL1USE_EXPORTS = name
 SHL1LIBS=       $(SLB)$/$(TARGET).lib
 SHL1IMPLIB=     i$(TARGET)
 SHL1DEPN=       $(SHL1LIBS)
 SHL1DEF=        $(MISC)$/$(SHL1TARGET).def
-.IF "$(OS)"!="MACOSX"
-SHL1VERSIONMAP=$(SOLARENV)/src/component.map
-.ENDIF
 
 # build DEF file
 DEF1NAME    =$(SHL1TARGET)