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lcio.m4
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dnl lcio.m4 -- checks for LCIO library
dnl
### Determine paths to LCIO components
### If successful, set the conditional LCIO_AVAILABLE
### Also: LCIO_VERSION LCIO_INCLUDES LDFLAGS_LCIO
AC_DEFUN([WO_PROG_LCIO],
[dnl
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([AC_PROG_FC])
AC_ARG_ENABLE([lcio],
[AS_HELP_STRING([--enable-lcio],
[enable LCIO for handling event data [[yes]]])],
[], [enable_lcio="yes"])
# First test for LCIO, then for LCIO_DIR; LCIO takes precedence.
if test -n "$LCIO"; then
wo_lcio_includes="-I$LCIO/include"
elif test -n "$LCIO_DIR"; then
wo_lcio_includes="-I$LCIO_DIR/include"
fi
if test "$enable_lcio" = "yes"; then
AC_MSG_CHECKING([the LCIO version])
AC_LANG([C++])
wo_cxxflags_tmp=$CXXFLAGS
CXXFLAGS="$CXXFLAGS $wo_lcio_includes"
AC_LINK_IFELSE([dnl
AC_LANG_PROGRAM([[#include "lcio.h"]],
[[std::cout << LCIO_MAJOR_VERSION << "." << LCIO_MINOR_VERSION << "." << LCIO_PATCH_LEVEL;]])],
[dnl
wk_lcio_version=`./conftest`
AC_MSG_RESULT([$wk_lcio_version])],
[dnl
AC_MSG_RESULT([unknown])
enable_lcio="no"])
CXXFLAGS=$wo_cxxflags_tmp
fi
LCIO_VERSION=$wk_lcio_version
AC_SUBST([LCIO_VERSION])
wo_lcio_ldflags="-llcio"
if test "$enable_lcio" = "yes"; then
wo_require_stdcpp="yes"
AC_MSG_CHECKING([for LCEventImpl class in -llcio])
# First test for LCIO, then for LCIO_DIR; LCIO takes precedence.
if test -n "$LCIO"; then
wo_lcio_ldflags="-Wl,-rpath,$LCIO/lib -Wl,-rpath,$LCIO/lib64 -L$LCIO/lib -L$LCIO/lib64 $wo_lcio_ldflags"
elif test -n "$LCIO_DIR"; then
wo_lcio_ldflags="-Wl,-rpath,$LCIO_DIR/lib -Wl,-rpath,$LCIO_DIR/lib64 -L$LCIO_DIR/lib -L$LCIO_DIR/lib64 $wo_lcio_ldflags"
fi
wo_libs_tmp=$LIBS
LIBS="$wo_lcio_ldflags $wo_libs_tmp"
AC_LANG([C++])
wo_cxxflags_tmp=$CXXFLAGS
CXXFLAGS="$CXXFLAGS $wo_lcio_includes"
AC_LINK_IFELSE([dnl
AC_LANG_PROGRAM([[#include "IMPL/LCEventImpl.h"]],
[[using namespace IMPL; LCEventImpl* evt = new LCEventImpl();]])],
[],
[enable_lcio="no"])
AC_MSG_RESULT([$enable_lcio])
CXXFLAGS=$wo_cxxflags_tmp
LIBS=$wo_libs_tmp
else
AC_MSG_CHECKING([for LCIO])
AC_MSG_RESULT([(disabled)])
fi
if test "$enable_lcio" = "yes"; then
LCIO_INCLUDES=$wo_lcio_includes
LDFLAGS_LCIO=$wo_lcio_ldflags
fi
LCIO_AVAILABLE_FLAG=$enable_lcio
AC_SUBST([LCIO_INCLUDES])
AC_SUBST([LDFLAGS_LCIO])
AC_SUBST([LCIO_AVAILABLE_FLAG])
AM_CONDITIONAL([LCIO_AVAILABLE], [test "$enable_lcio" = "yes"])
])

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