Initial commit

third-party/odb/libodb-sqlite-2.4.0/m4/libtool-link.m4

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+dnl file      : m4/libtool-link.m4
+dnl copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
+dnl license   : GNU GPL v2; see accompanying LICENSE file
+dnl
+dnl
+dnl CXX_LIBTOOL_LINK_IFELSE (input, [action-if-true], [action-if-false])
+dnl
+dnl Similar to AC_LINK_IFELSE except it uses libtool to perform the
+dnl linking and it does this using the C++ compiler.
+dnl
+AC_DEFUN([CXX_LIBTOOL_LINK_IFELSE],[
+AC_LANG_SAVE
+AC_LANG(C++)
+
+if test -d .libs; then
+  delete_libs_dir=no
+else
+  delete_libs_dir=yes
+fi
+
+AC_COMPILE_IFELSE([$1],
+[
+  ac_try='./libtool --tag=CXX --mode=link $CXX -no-install $CXXFLAGS $LDFLAGS -o conftest conftest.$OBJEXT $LIBS >&AS_MESSAGE_LOG_FD'
+  if _AC_DO_VAR(ac_try); then
+    libtool_link_ok=yes
+  else
+    libtool_link_ok=no
+  fi
+],
+[
+  libtool_link_ok=no
+])
+
+if test x"$delete_libs_dir" = xyes; then
+  rm -rf .libs
+fi
+
+if test x"$libtool_link_ok" = xyes; then
+[$2]
+:
+else
+[$3]
+:
+fi
+
+AC_LANG_RESTORE])dnl