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diff --git a/m4/hepmc.m4 b/m4/hepmc.m4
--- a/m4/hepmc.m4
+++ b/m4/hepmc.m4
@@ -1,131 +1,146 @@
dnl ##### HEPMC #####
AC_DEFUN([THEPEG_CHECK_HEPMC],
[
AC_MSG_CHECKING([for HepMC location])
HEPMCINCLUDE=""
HEPMCROOTIO=0
AC_ARG_WITH(hepmc,
AC_HELP_STRING([--with-hepmc=DIR],[Location of HepMC2 or HepMC3 installation @<:@default=system libs@:>@]),
[],
[with_hepmc=no])
AC_ARG_WITH(hepmcversion,
AC_HELP_STRING([--with-hepmcversion=version],[Version of HepMC]),
[],
- [with_hepmcversion=2])
+ [with_hepmcversion=no])
+
+if test "x$with_hepmc" == "xno" -a "x$with_hepmcversion" != "xno"; then
+ with_hepmc=yes
+fi
+
+if test "x$with_hepmcversion" == "xno"; then
+ with_hepmcversion=2
+fi
+
HEPMCLIBS=""
if test "x$with_hepmcversion" = "x2"; then
SHORTHEPMCLIBS="-lHepMC"
SHORTHEPMCLIBNAME="HepMC"
fi
if test "x$with_hepmcversion" = "x3"; then
SHORTHEPMCLIBS="-lHepMC3"
SHORTHEPMCLIBNAME="HepMC3"
fi
-
+if test "x$with_hepmc" == "xyes"; then
+ if test "x$prefix" == "xNONE"; then
+ with_hepmc=$ac_default_prefix
+ else
+ with_hepmc=$prefix
+ fi
+fi
if test "x$with_hepmc" = "xno"; then
AC_MSG_RESULT([HepMC support disabled.])
elif test "x$with_hepmc" = "xsystem"; then
AC_MSG_RESULT([in system libraries])
oldlibs="$LIBS"
AC_CHECK_LIB($SHORTHEPMCLIBNAME,main,
[],
[with_hepmc=no
AC_MSG_WARN([HepMC not found in system libraries])
])
HEPMCLIBS="$LIBS"
LIBS=$oldlibs
else
AC_MSG_RESULT([$with_hepmc])
HEPMCINCLUDE=-I$with_hepmc/include
HEPMCLIBS="-L$with_hepmc/lib -R$with_hepmc/lib "$SHORTHEPMCLIBS
if test "${host_cpu}" == "x86_64" -a "x$with_hepmcversion" = "x2" -a -e $with_hepmc/lib64/libHepMC.so ; then
HEPMCLIBS="-L$with_hepmc/lib64 -R$with_hepmc/lib64 "$SHORTHEPMCLIBS
fi
if test "${host_cpu}" == "x86_64" -a "x$with_hepmcversion" = "x3" -a -e $with_hepmc/lib64/libHepMC3.so ; then
HEPMCLIBS="-L$with_hepmc/lib64 -R$with_hepmc/lib64 "$SHORTHEPMCLIBS
fi
fi
if test "x$with_hepmc" != "xno"; then
# Now lets see if the libraries work properly
oldLIBS="$LIBS"
oldLDFLAGS="$LDFLAGS"
oldCPPFLAGS="$CPPFLAGS"
LIBS="$LIBS `echo $HEPMCLIBS | sed -e 's! -R.* ! !'`"
LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS $HEPMCINCLUDE"
if test "x$with_hepmcversion" = "x2"; then
AC_CHECK_HEADERS([HepMC/HepMCDefs.h],[],[AC_MSG_WARN([
*********************************************************************
* HepMC versions before 2.05 may still work, but are not supported. *
*********************************************************************
])])
# check HepMC
AC_MSG_CHECKING([that HepMC works])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <HepMC/GenEvent.h>
]],[[HepMC::GenEvent(HepMC::Units::GEV, HepMC::Units::MM);]])],[AC_MSG_RESULT([yes])],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Use '--with-hepmc=' to set a path or use '--without-hepmc'.])
])
AC_CHECK_HEADERS([HepMC/PdfInfo.h],[],[AC_MSG_ERROR([Need HepMC with PdfInfo support.])],[#include <iostream>
])
fi
if test "x$with_hepmcversion" = "x3"; then
# check HepMC
AC_MSG_CHECKING([that HepMC3 works])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <HepMC3/GenEvent.h>]],[[HepMC3::GenEvent(HepMC3::Units::GEV, HepMC3::Units::MM);]])],
[
AC_MSG_RESULT([yes])
],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Use '--with-hepmc=' to set a path or use '--without-hepmc'.])
])
HEPMCROOTIO=0
AC_CHECK_HEADERS([HepMC3/WriterRoot.h],
[
HEPMCROOTIO=1
AC_MSG_RESULT([HepMC3 has ROOT support.])
],[])
AC_CHECK_HEADERS([HepMC3/WriterRootTree.h],
[
HEPMCROOTIO=1
AC_MSG_RESULT([HepMC has ROOT Tree support.])
],[])
AC_CHECK_HEADERS([HepMC3/Writer.h],
[
AC_DEFINE([HAVE_HEPMC3], [1],[ We have HepMC3 ])
AC_DEFINE([HEPMC_HAS_CROSS_SECTION], [1],[ Has GenCrossection ])
AC_DEFINE([HEPMC_HAS_NAMED_WEIGHTS], [1],[ Has named weights ])
AC_DEFINE([HEPMC_HAS_PDF_INFO], [1],[ Has GenPdfInfo ])
AC_DEFINE([HEPMC_HAS_UNITS] , [1],[ Has units ])
],[])
fi
LIBS="$oldLIBS"
LDFLAGS="$oldLDFLAGS"
CPPFLAGS="$oldCPPFLAGS"
fi
AM_CONDITIONAL(HAVE_HEPMC,[test "x$with_hepmc" != "xno"])
AM_CONDITIONAL(HAVE_HEPMCROOTIO,[test "x$with_hepmc" != "xno" && test "$HEPMCROOTIO" != "0" ])
AC_SUBST(HEPMCINCLUDE)
AC_SUBST(HEPMCLIBS)
AC_SUBST(CREATE_HEPMC)
AC_SUBST(LOAD_HEPMC)
])

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