new build system: multiplatform, cxx-runtime-hack, luatex

git-svn-id: svn://tug.org/texlive/trunk@12563 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 89 insertions, 0 deletions

diff --git a/Build/source/m4/kpse-cxx-hack.m4 b/Build/source/m4/kpse-cxx-hack.m4
new file mode 100644
index 00000000000..94f0eb6cf16
--- /dev/null
+++ b/Build/source/m4/kpse-cxx-hack.m4
@@ -0,0 +1,89 @@
+# Public macros for the teTeX / TeX Live (TL) tree.
+# Copyright (C) 2009 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holder
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 0
+
+# KPSE_ENABLE_CXX_HACK
+# --------------------
+# Provide the configure option '--enable-cxx-runtime-hack'.
+AC_DEFUN([KPSE_ENABLE_CXX_HACK],
+[AC_ARG_ENABLE([cxx-runtime-hack],
+               AS_HELP_STRING([--enable-cxx-runtime-hack],
+                              [link C++ runtime statically],
+                              [29]))[]dnl
+]) # KPSE_ENABLE_CXX_HACK
+
+# KPSE_CXX_HACK()
+# ---------------
+# Try statically linking C++ runtime library (g++ only)
+# and define CXX_HACK_LIBS with required flags.
+# Since Libtool reshuffles the argument list, we define CXXLD
+# as wrapper script appending these flags to  g++ as invoked
+# by Libtool when linking progams (but not shared libraries).
+#
+AC_DEFUN([KPSE_CXX_HACK],
+[AC_REQUIRE([AC_PROG_CXX])[]dnl
+AC_REQUIRE([KPSE_ENABLE_CXX_HACK])[]dnl
+cpp_link_hack=false
+if test "x$GXX" = xyes && test "x$enable_cxx_runtime_hack" = xyes; then
+  _KPSE_CXX_HACK
+fi
+if $cpp_link_hack; then
+  CXXLD='$(top_builddir)/CXXLD.sh'
+  CXX_HACK_DEPS=$CXXLD
+  cxxld_sh="#! ${CONFIG_SHELL-/bin/sh}
+# CXXLD.sh.  Generated by configure.
+set -- $CXX \"\$[]@\" $CXX_HACK_LIBS
+echo \"\$[]0:\" \"\$[]@\"
+exec \"\$[]@\""
+  AC_CONFIG_FILES([CXXLD.sh:Makefile.in],
+                  [echo "$cxxld_sh" >CXXLD.sh; chmod +x CXXLD.sh],
+                  [cxxld_sh='$cxxld_sh'])
+else
+  CXXLD='$(CXX)'
+fi
+AC_SUBST([CXXLD])
+AC_SUBST([CXX_HACK_DEPS])
+AC_SUBST([CXX_HACK_LIBS])
+]) # KPSE_CXX_HACK
+
+# _KPSE_CXX_HACK()
+# ----------------
+# internal subroutine
+m4_define([_KPSE_CXX_HACK], [
+AC_LANG_PUSH([C++])
+AC_CHECK_HEADERS([iostream])
+AC_MSG_CHECKING([for statically linking C++ runtime library])
+AC_LANG_CONFTEST([AC_LANG_PROGRAM([[#ifdef HAVE_IOSTREAM
+#include <iostream>
+using namespace std;
+#else
+#include <iostream.h>
+#endif]],
+                                  [[cout <<"worksok\n";]])])
+flags_try0='-nodefaultlibs -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -lm'
+flags_try1='-lgcc_eh -lgcc -lc -lgcc_eh -lgcc'
+flags_try2='-lgcc -lc -lgcc'
+kpse_save_LIBS=$LIBS
+for flags in "$flags_try1" "$flags_try2"; do
+  LIBS="$kpse_save_LIBS $flags_try0 $flags"
+  AC_LINK_IFELSE([],
+    [case `(./conftest$ac_exeext; exit) 2>/dev/null` in
+       worksok)
+         cpp_link_hack=true; break;;
+     esac])
+done
+LIBS=$kpse_save_LIBS
+
+if $cpp_link_hack; then
+  CXX_HACK_LIBS="$flags_try0 $flags"
+  AC_MSG_RESULT(ok using $CXX_HACK_LIBS)
+else
+  AC_MSG_RESULT(not supported)
+fi
+AC_LANG_POP([C++])
+]) # _KPSE_CXX_HACK