[Template Merge] shared macro

m4/giella-macros.m4

@@ -1022,12 +1022,40 @@ AS_IF([test x$enable_tts = xyes -a x$enable_transcriptors = xno],
     [AC_MSG_ERROR([You need to enable transcriptors to build tts])])
 AS_IF([test x$enable_tts = xyes -a x$enable_phonetic = xno],
     [AC_MSG_ERROR([You need to enable phonetic to build tts])])
+AS_IF([test x$enable_tts = xyes -a x$enable_tokenisers = xno],
+    [AC_MSG_ERROR([You need to enable phonetic to build tts])])
 AM_CONDITIONAL([WANT_TTS], [test "x$enable_tts" != xno])
 enableval=''
 
 
 ]) # gt_ENABLE_TARGETS
 
+################################################################################
+# Define function to enable optional shared targets
+################################################################################
+# Usage: gt_USE_SHARED([NAME], [SHARED REPONAME])
+# 
+AC_DEFUN([gt_USE_SHARED],
+[
+THIS_TOP_SRC_DIR=$BUILD_DIR_PATH/$MYSRCDIR
+
+AC_MSG_CHECKING([whether we can use shared $1])
+# Check in the parent directory:
+AS_IF([test -d "$THIS_TOP_SRC_DIR"/../$2 ], [
+    gt_SHARED_$1="$THIS_TOP_SRC_DIR"/../$2
+    ], [
+        AS_IF([pkg-config --exists $2], [
+            gt_SHARED_$1="$(pkg-config --variable=dir $1)"
+        ],
+        [
+            gt_SHARED_$1=false
+            AC_MSG_WARN([Could not find $1 data dir to set $1])
+        ])
+    ])
+AC_MSG_RESULT([$gt_SHARED_$1])
+AC_ARG_VAR([gt_SHARED_$1])
+]) # gt_USE_SHARED
+
 ################################################################################
 # Define function to print the configure footer
 ################################################################################