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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [aclocal/] [prog-cxx.m4] - Rev 312
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dnl dnl $Id: prog-cxx.m4,v 1.2 2001-09-27 11:59:11 chris Exp $ dnl dnl Check for target g++ dnl dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de) dnl Completely reworked AC_DEFUN(RTEMS_PROG_CXX, [ AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl AC_BEFORE([$0], [AC_PROG_CXX])dnl AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl AC_REQUIRE([RTEMS_TOOL_PREFIX])dnl AC_REQUIRE([RTEMS_ENABLE_LIBCDIR])dnl dnl Only accept g++ and c++ dnl NOTE: This might be too restrictive for native compilation AC_PATH_PROGS(CXX_FOR_TARGET, "$program_prefix"g++ "$program_prefix"c++) test -z "$CXX_FOR_TARGET" \ && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) dnl backup rtems_save_CXX=$CXX rtems_save_CXXFLAGS=$CXXFLAGS dnl temporarily set CXX CXX=$CXX_FOR_TARGET AC_PROG_CXX_WORKS AC_PROG_CXX_GNU if test $ac_cv_prog_gxx = yes; then GXX=yes dnl Check whether -g works, even if CXXFLAGS is set, in case the package dnl plays around with CXXFLAGS (such as to build both debugging and dnl normal versions of a library), tasteless as that idea is. ac_test_CXXFLAGS="${CXXFLAGS+set}" ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS= AC_PROG_CXX_G if test "$ac_test_CXXFLAGS" = set; then CXXFLAGS="$ac_save_CXXFLAGS" elif test $ac_cv_prog_cxx_g = yes; then CXXFLAGS="-g -O2" else CXXFLAGS="-O2" fi else GXX= test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" fi rtems_cv_prog_gxx=$ac_cv_prog_gxx rtems_cv_prog_cxx_g=$ac_cv_prog_cxx_g rtems_cv_prog_cxx_works=$ac_cv_prog_cxx_works rtems_cv_prog_cxx_cross=$ac_cv_prog_cxx_cross CXX=$rtems_save_CXX CXXFLAGS=$rtems_save_CXXFLAGS dnl restore initial values unset ac_cv_prog_gxx unset ac_cv_prog_cc_g unset ac_cv_prog_cxx_works unset ac_cv_prog_cxx_cross dnl somehow autoconf macros leave this file rm -f conftest.C ]) AC_DEFUN(RTEMS_PROG_CXX_FOR_TARGET, [ RTEMS_PROG_CXX if test "$rtems_cv_prog_cc_cross" != "$rtems_cv_prog_cxx_cross"; then AC_MSG_ERROR([***] [Inconsistency in compiler configuration:] [Target C compiler and Target C++ compiler] [must both either be cross compilers or native compilers] [Hint: If building a posix bsp: LD_LIBRARY_PATH?] ) fi ])
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