| 1 | dnl GTEST_LIB_CHECK([minimum version [,
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| 2 | dnl action if found [,action if not found]]])
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| 3 | dnl
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| 4 | dnl Check for the presence of the Google Test library, optionally at a minimum
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| 5 | dnl version, and indicate a viable version with the HAVE_GTEST flag. It defines
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| 6 | dnl standard variables for substitution including GTEST_CPPFLAGS,
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| 7 | dnl GTEST_CXXFLAGS, GTEST_LDFLAGS, and GTEST_LIBS. It also defines
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| 8 | dnl GTEST_VERSION as the version of Google Test found. Finally, it provides
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| 9 | dnl optional custom action slots in the event GTEST is found or not.
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| 10 | AC_DEFUN([GTEST_LIB_CHECK],
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| 11 | [
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| 12 | dnl Provide a flag to enable or disable Google Test usage.
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| 13 | AC_ARG_ENABLE([gtest],
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| 14 | [AS_HELP_STRING([--enable-gtest],
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| 15 | [Enable tests using the Google C++ Testing Framework.
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| 16 | (Default is enabled.)])],
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| 17 | [],
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| 18 | [enable_gtest=])
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| 19 | AC_ARG_VAR([GTEST_CONFIG],
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| 20 | [The exact path of Google Test's 'gtest-config' script.])
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| 21 | AC_ARG_VAR([GTEST_CPPFLAGS],
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| 22 | [C-like preprocessor flags for Google Test.])
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| 23 | AC_ARG_VAR([GTEST_CXXFLAGS],
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| 24 | [C++ compile flags for Google Test.])
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| 25 | AC_ARG_VAR([GTEST_LDFLAGS],
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| 26 | [Linker path and option flags for Google Test.])
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| 27 | AC_ARG_VAR([GTEST_LIBS],
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| 28 | [Library linking flags for Google Test.])
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| 29 | AC_ARG_VAR([GTEST_VERSION],
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| 30 | [The version of Google Test available.])
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| 31 | HAVE_GTEST="no"
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| 32 | AS_IF([test "x${enable_gtest}" != "xno"],
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| 33 | [AC_MSG_CHECKING([for 'gtest-config'])
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| 34 | AS_IF([test "x${enable_gtest}" != "xyes"],
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| 35 | [AS_IF([test -x "${enable_gtest}/scripts/gtest-config"],
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| 36 | [GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"],
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| 37 | [GTEST_CONFIG="${enable_gtest}/bin/gtest-config"])
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| 38 | AS_IF([test -x "${GTEST_CONFIG}"], [],
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| 39 | [AC_MSG_RESULT([no])
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| 40 | AC_MSG_ERROR([dnl
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| 41 | Unable to locate either a built or installed Google Test.
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| 42 | The specific location '${enable_gtest}' was provided for a built or installed
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| 43 | Google Test, but no 'gtest-config' script could be found at this location.])
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| 44 | ])],
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| 45 | [AC_PATH_PROG([GTEST_CONFIG], [gtest-config])])
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| 46 | AS_IF([test -x "${GTEST_CONFIG}"],
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| 47 | [AC_MSG_RESULT([${GTEST_CONFIG}])
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| 48 | m4_ifval([$1],
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| 49 | [_gtest_min_version="--min-version=$1"
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| 50 | AC_MSG_CHECKING([for Google Test at least version >= $1])],
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| 51 | [_gtest_min_version="--min-version=0"
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| 52 | AC_MSG_CHECKING([for Google Test])])
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| 53 | AS_IF([${GTEST_CONFIG} ${_gtest_min_version}],
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| 54 | [AC_MSG_RESULT([yes])
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| 55 | HAVE_GTEST='yes'],
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| 56 | [AC_MSG_RESULT([no])])],
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| 57 | [AC_MSG_RESULT([no])])
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| 58 | AS_IF([test "x${HAVE_GTEST}" = "xyes"],
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| 59 | [GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
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| 60 | GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
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| 61 | GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
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| 62 | GTEST_LIBS=`${GTEST_CONFIG} --libs`
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| 63 | GTEST_VERSION=`${GTEST_CONFIG} --version`
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| 64 | AC_DEFINE([HAVE_GTEST],[1],[Defined when Google Test is available.])],
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| 65 | [AS_IF([test "x${enable_gtest}" = "xyes"],
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| 66 | [AC_MSG_ERROR([dnl
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| 67 | Google Test was enabled, but no viable version could be found.])
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| 68 | ])])])
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| 69 | AC_SUBST([HAVE_GTEST])
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| 70 | AM_CONDITIONAL([HAVE_GTEST],[test "x$HAVE_GTEST" = "xyes"])
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| 71 | AS_IF([test "x$HAVE_GTEST" = "xyes"],
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| 72 | [m4_ifval([$2], [$2])],
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| 73 | [m4_ifval([$3], [$3])])
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| 74 | ])
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