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55 lines
2.5 KiB
55 lines
2.5 KiB
2 years ago
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dnl @synopsis TAC_ARG_ENABLE_FEATURE_SUB_CHECK(FEATURE_NAME, SUB_FEATURE_NAME, FEATURE_DESCRIPTION, HAVE_NAME)
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dnl
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dnl This hack gets around the fact that TAC_ARG_ENABLE_FEATURE does not support underscores
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dnl in its feature names. TAC_ARG_ENABLE_FEATURE_SUB_CHECK allows exactly one underscore. Not great,
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dnl but arguably better than supporting no underscores.
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dnl
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dnl TAC_ARG_ENABLE_FEATURE(feature-sub, [Configure and build feature-sub], FEATURE_SUB, yes)
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dnl fails because tac_arg_enable_feature tests for ac_cv_use_feature-sub which gets
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dnl rejected because the `-' is not allowed in variables. (AC_ARG_ENABLE sets ac_cv_use_feature_sub
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dnl to avoid this problem.) Use:
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dnl
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dnl TAC_ARG_ENABLE_FEATURE_SUB_CHECK(feature, sub, [Configure and build feature-sub], FEATURE_SUB)
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dnl instead.
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dnl
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dnl This macro will test for --enable-${FEATURE_NAME}-${SUB_FEATURE_NAME} when configure is run.
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dnl If it is defined and not set to "no" or not defined and --disable-${SUB_FEATURE_NAME} is not
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dnl specified then HAVE_${HAVE_NAME} will be defined.
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dnl
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dnl *NOTE: This macro is designed for the use-case when there is an individual Trilinos package
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dnl offering fine-grained control of a Trilinos option. This way, the individual package
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dnl option is enabled, as long as the Trilinos option is not disabled. If the Trilinos option is
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dnl disabled, then the user must enable each packages option individually. For instance:
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dnl
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dnl --disable-tests --enable-teuchos-tests
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dnl
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dnl *NOTE: epetra, aztecoo, komplex, ifpack, and other software found in
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dnl subdirectories of Trilinos/packages are "packages" in their own right.
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dnl However, these packages are also "features" of the larger package
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dnl "Trilinos". Therefore, when configuring from the Trilinos directory,
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dnl it is appropriate to refer to these software packages as "features".
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dnl
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dnl This file was based on tac_arg_enable_package.m4 by Jim Willenbring
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dnl and tac_arg_enable_package_sub.m4 by Ken Stanley.
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dnl
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dnl @author Heidi Thornquist <hkthorn@sandia.gov>
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dnl
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AC_DEFUN([TAC_ARG_ENABLE_FEATURE_SUB_CHECK],
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[
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AC_ARG_ENABLE([$2],, ac_cv_use_$2=$enableval, ac_cv_use_$2=yes)
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AC_ARG_ENABLE([$1-$2],
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AC_HELP_STRING([--enable-$1-$2],[$3 (default is yes if --disable-$2 is not specified)]),
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ac_cv_use_$1_$2=$enableval, ac_cv_use_$1_$2=${ac_cv_use_$2})
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AC_MSG_CHECKING(whether to use [$1-$2])
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if test "X$ac_cv_use_$1_$2" != "Xno"; then
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AC_MSG_RESULT(yes)
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AC_DEFINE([HAVE_$4],,[Define if want to build $1-$2])
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else
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AC_MSG_RESULT(no)
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fi
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])
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