1 dnl GTEST_LIB_CHECK([minimum version [, 2 dnl action if found [,action if not found]]]) 3 dnl 4 dnl Check for the presence of the Google Test library, optionally at a minimum 5 dnl version, and indicate a viable version with the HAVE_GTEST flag. It defines 6 dnl standard variables for substitution including GTEST_CPPFLAGS, 7 dnl GTEST_CXXFLAGS, GTEST_LDFLAGS, and GTEST_LIBS. It also defines 8 dnl GTEST_VERSION as the version of Google Test found. Finally, it provides 9 dnl optional custom action slots in the event GTEST is found or not. 10 AC_DEFUN([GTEST_LIB_CHECK], 11 [ 12 dnl Provide a flag to enable or disable Google Test usage. 13 AC_ARG_ENABLE([gtest], 14 [AS_HELP_STRING([--enable-gtest], 15 [Enable tests using the Google C++ Testing Framework. 16 (Default is enabled.)])], 17 [], 18 [enable_gtest=]) 19 AC_ARG_VAR([GTEST_CONFIG], 20 [The exact path of Google Test's 'gtest-config' script.]) 21 AC_ARG_VAR([GTEST_CPPFLAGS], 22 [C-like preprocessor flags for Google Test.]) 23 AC_ARG_VAR([GTEST_CXXFLAGS], 24 [C++ compile flags for Google Test.]) 25 AC_ARG_VAR([GTEST_LDFLAGS], 26 [Linker path and option flags for Google Test.]) 27 AC_ARG_VAR([GTEST_LIBS], 28 [Library linking flags for Google Test.]) 29 AC_ARG_VAR([GTEST_VERSION], 30 [The version of Google Test available.]) 31 HAVE_GTEST="no" 32 AS_IF([test "x${enable_gtest}" != "xno"], 33 [AC_MSG_CHECKING([for 'gtest-config']) 34 AS_IF([test "x${enable_gtest}" != "xyes"], 35 [AS_IF([test -x "${enable_gtest}/scripts/gtest-config"], 36 [GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"], 37 [GTEST_CONFIG="${enable_gtest}/bin/gtest-config"]) 38 AS_IF([test -x "${GTEST_CONFIG}"], [], 39 [AC_MSG_RESULT([no]) 40 AC_MSG_ERROR([dnl 41 Unable to locate either a built or installed Google Test. 42 The specific location '${enable_gtest}' was provided for a built or installed 43 Google Test, but no 'gtest-config' script could be found at this location.]) 44 ])], 45 [AC_PATH_PROG([GTEST_CONFIG], [gtest-config])]) 46 AS_IF([test -x "${GTEST_CONFIG}"], 47 [AC_MSG_RESULT([${GTEST_CONFIG}]) 48 m4_ifval([$1], 49 [_gtest_min_version="--min-version=$1" 50 AC_MSG_CHECKING([for Google Test at least version >= $1])], 51 [_gtest_min_version="--min-version=0" 52 AC_MSG_CHECKING([for Google Test])]) 53 AS_IF([${GTEST_CONFIG} ${_gtest_min_version}], 54 [AC_MSG_RESULT([yes]) 55 HAVE_GTEST='yes'], 56 [AC_MSG_RESULT([no])])], 57 [AC_MSG_RESULT([no])]) 58 AS_IF([test "x${HAVE_GTEST}" = "xyes"], 59 [GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags` 60 GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags` 61 GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags` 62 GTEST_LIBS=`${GTEST_CONFIG} --libs` 63 GTEST_VERSION=`${GTEST_CONFIG} --version` 64 AC_DEFINE([HAVE_GTEST],[1],[Defined when Google Test is available.])], 65 [AS_IF([test "x${enable_gtest}" = "xyes"], 66 [AC_MSG_ERROR([dnl 67 Google Test was enabled, but no viable version could be found.]) 68 ])])]) 69 AC_SUBST([HAVE_GTEST]) 70 AM_CONDITIONAL([HAVE_GTEST],[test "x$HAVE_GTEST" = "xyes"]) 71 AS_IF([test "x$HAVE_GTEST" = "xyes"], 72 [m4_ifval([$2], [$2])], 73 [m4_ifval([$3], [$3])]) 74 ]) 75
