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A small re-work of the installed m4 script for Google Test. This

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allows other projects to easily leverage an installation or
un-installed build of Google Test from their project's Autoconf
script. This re-work specifically introduces the ability to provide a
path as an argument to the resulting configure script option which can
specify either an installation prefix or a build directory for Google
Test.

This change also makes a small portability tweak by using ``s instead
of $() for command expansion.

By Chandler Carruth.  Reviewed by Benoit Sigoure.
This commit is contained in:
shiqian 2008-12-10 18:27:39 +00:00
parent a369436e2a
commit 7b3b36fde4
1 changed files with 38 additions and 25 deletions
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63
m4/gtest.m4
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@ -12,10 +12,10 @@ AC_DEFUN([GTEST_LIB_CHECK],
dnl Provide a flag to enable or disable Google Test usage. dnl Provide a flag to enable or disable Google Test usage.
AC_ARG_ENABLE([gtest], AC_ARG_ENABLE([gtest],
[AS_HELP_STRING([--enable-gtest], [AS_HELP_STRING([--enable-gtest],
[Enable tests using the Google C++ Testing Framework.] [Enable tests using the Google C++ Testing Framework.
[(Default is enabled.)])], (Default is enabled.)])],
[], [],
[enable_gtest=check]) [enable_gtest=])
AC_ARG_VAR([GTEST_CONFIG], AC_ARG_VAR([GTEST_CONFIG],
[The exact path of Google Test's 'gtest-config' script.]) [The exact path of Google Test's 'gtest-config' script.])
AC_ARG_VAR([GTEST_CPPFLAGS], AC_ARG_VAR([GTEST_CPPFLAGS],
@ -29,33 +29,46 @@ AC_ARG_VAR([GTEST_LIBS],
AC_ARG_VAR([GTEST_VERSION], AC_ARG_VAR([GTEST_VERSION],
[The version of Google Test available.]) [The version of Google Test available.])
HAVE_GTEST="no" HAVE_GTEST="no"
AS_IF([test "x$enable_gtest" != "xno"], AS_IF([test "x${enable_gtest}" != "xno"],
[AC_PATH_PROG([GTEST_CONFIG], [gtest-config]) [AC_MSG_CHECKING([for 'gtest-config'])
AS_IF([test -x "$GTEST_CONFIG"], AS_IF([test "x${enable_gtest}" != "xyes"],
[AS_IF([test "x$1" != "x"], [AS_IF([test -x "${enable_gtest}/scripts/gtest-config"],
[_min_version="--min-version=$1" [GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"],
[GTEST_CONFIG="${enable_gtest}/bin/gtest-config"])
AS_IF([test -x "${GTEST_CONFIG}"], [],
[AC_MSG_RESULT([no])
AC_MSG_ERROR([dnl
Unable to locate either a built or installed Google Test.
The specific location '${enable_gtest}' was provided for a built or installed
Google Test, but no 'gtest-config' script could be found at this location.])
])],
[AC_PATH_PROG([GTEST_CONFIG], [gtest-config])])
AS_IF([test -x "${GTEST_CONFIG}"],
[AC_MSG_RESULT([${GTEST_CONFIG}])
m4_ifval([$1],
[_gtest_min_version="--min-version=$1"
AC_MSG_CHECKING([for Google Test at least version >= $1])], AC_MSG_CHECKING([for Google Test at least version >= $1])],
[_min_version="--min-version=0" [_gtest_min_version="--min-version=0"
AC_MSG_CHECKING([for Google Test])]) AC_MSG_CHECKING([for Google Test])])
AS_IF([$GTEST_CONFIG $_min_version], AS_IF([${GTEST_CONFIG} ${_gtest_min_version}],
[AC_MSG_RESULT([yes]) [AC_MSG_RESULT([yes])
HAVE_GTEST="yes"], HAVE_GTEST='yes'],
[AC_MSG_RESULT([no])])]) [AC_MSG_RESULT([no])])],
AS_IF([test "x$HAVE_GTEST" = "xyes"], [AC_MSG_RESULT([no])])
[GTEST_CPPFLAGS=$($GTEST_CONFIG --cppflags) AS_IF([test "x${HAVE_GTEST}" = "xyes"],
GTEST_CXXFLAGS=$($GTEST_CONFIG --cxxflags) [GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
GTEST_LDFLAGS=$($GTEST_CONFIG --ldflags) GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
GTEST_LIBS=$($GTEST_CONFIG --libs) GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
GTEST_VERSION=$($GTEST_CONFIG --version) GTEST_LIBS=`${GTEST_CONFIG} --libs`
GTEST_VERSION=`${GTEST_CONFIG} --version`
AC_DEFINE([HAVE_GTEST],[1],[Defined when Google Test is available.])], AC_DEFINE([HAVE_GTEST],[1],[Defined when Google Test is available.])],
[AS_IF([test "x$enable_gtest" = "xyes"], [AS_IF([test "x${enable_gtest}" = "xyes"],
[AC_MSG_ERROR([ [AC_MSG_ERROR([dnl
The Google C++ Testing Framework was explicitly enabled, but a viable version Google Test was enabled, but no viable version could be found.])
could not be found on the system. ])])])
])])])])
AC_SUBST([HAVE_GTEST]) AC_SUBST([HAVE_GTEST])
AM_CONDITIONAL([HAVE_GTEST],[test "x$HAVE_GTEST" = "xyes"]) AM_CONDITIONAL([HAVE_GTEST],[test "x$HAVE_GTEST" = "xyes"])
AS_IF([test "x$HAVE_GTEST" = "xyes"], AS_IF([test "x$HAVE_GTEST" = "xyes"],
[AS_IF([test "x$2" != "x"],[$2],[:])], [m4_ifval([$2], [$2])],
[AS_IF([test "x$3" != "x"],[$3],[:])]) [m4_ifval([$3], [$3])])
]) ])