| Austin Schuh | 0cbef62 | 2015-09-06 17:34:52 -0700 | [diff] [blame] | 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 | ]) |