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5fd5ed6717
determine whether it is necessary to use a trailing '.' in the argument to the -o option of the C++ preprocessor to disable the generation of a default extension. [Imported from Perforce change 8686 at 2006-12-01 20:37:16] Subversion-branch: /trunk/polyorb Subversion-revision: 36257
21 lines
620 B
Plaintext
21 lines
620 B
Plaintext
dnl Ada compiler handling
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dnl $Id$
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dnl Usage: AM_CXXCPP_NEEDS_DOT
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dnl Check whether it is necessary to add a trailing dot for the
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dnl C++ preprocessor to create an output file without extension.
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AC_DEFUN([AM_CXXCPP_NEEDS_DOT],
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[AC_REQUIRE([AC_PROG_CXXCPP])
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AC_MSG_CHECKING([if the C++ preprocessor -o option requires a dot])
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mkdir conftest
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touch conftest/input
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ac_try="cd conftest && $CXXCPP $CXXCPPFLAGS -o output input && cat output > /dev/null"
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if AC_TRY_EVAL(ac_try); then
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AC_MSG_RESULT(no)
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AC_SUBST(CXXCPP_OUTPUT_SUFFIX, "")
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else
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AC_MSG_RESULT(yes)
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AC_SUBST(CXXCPP_OUTPUT_SUFFIX, ".")
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fi
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rm -fr conftest])
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