[esnacc-dev] [PATCH] cross-build: disable asn rose

[Marty Galligan]

ack.

I manually put this patch into my checkout from github, and the cross 
compile worked well.  So I'm in favor of committing the change.

-Marty

At 10:44 AM 7/25/2017, Aaron Conole wrote:
>When cross-compiling the system, it is not possible for the esnacc binary to
>correctly execute on the build system (well, not always).  There is a
>method to combat this, which is the approach gcc takes, to generate a stage
>one version of the compiler and then execute that to generate the final
>tools (stage 2).  That represents quite a bit of work.
>
>On the other hand, people are using esnacc *now* and as Marty Galligan
>reports at http://mail.esnacc.org/pipermail/dev/2017-July/000414.html there
>can be problems cross building, especially related to this.
>
>This commit detects that a cross-compilation is occuring and disables the
>generation of the asn.1 ROSE support.  A future commit can enable this
>when it becomes necessary.
>
>Reported-by: Marty Galligan <m_galligan at comcast.net>
>Signed-off-by: Aaron Conole <aconole at bytheb.org>
>---
>  configure.ac        | 4 ++++
>  cxx-lib/automake.mk | 9 ++++++---
>  2 files changed, 10 insertions(+), 3 deletions(-)
>
>diff --git a/configure.ac b/configure.ac
>index 26007ef..65b4b48 100644
>--- a/configure.ac
>+++ b/configure.ac
>@@ -32,6 +32,10 @@ AC_PROG_INSTALL
>  AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
>  AC_PROG_CC
>  AC_PROG_CXX
>+
>+AM_CONDITIONAL([SNACCROSE], [test "$cross_compiling" = no])
>+test x"$cross_compiling" == xyes && AC_DEFINE([SNACCROSE], [0], [No 
>ROSE support])
>+
>  AM_PATH_PYTHON(,, [:])
>  AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != :])
>  AC_USE_SYSTEM_EXTENSIONS
>diff --git a/cxx-lib/automake.mk b/cxx-lib/automake.mk
>index 2c5b7ea..fc841ca 100644
>--- a/cxx-lib/automake.mk
>+++ b/cxx-lib/automake.mk
>@@ -1,5 +1,9 @@
>-lib_LTLIBRARIES += cxx-lib/libcxxasn1.la \
>-       cxx-lib/libcxxasn1rose.la
>+lib_LTLIBRARIES += cxx-lib/libcxxasn1.la
>+
>+if SNACCROSE
>+lib_LTLIBRARIES += cxx-lib/libcxxasn1rose.la
>+nobase_include_HEADERS += cxx-lib/inc/snaccrose.h
>+endif
>
>  BUILT_SOURCES += cxx-lib/inc/snacc.h
>
>@@ -17,7 +21,6 @@ nobase_include_HEADERS += cxx-lib/inc/asn-buf.h \
>         cxx-lib/inc/snacc.h \
>         cxx-lib/inc/snaccdll.h \
>         cxx-lib/inc/snaccexcept.h \
>-       cxx-lib/inc/snaccrose.h \
>         cxx-lib/inc/tcl-if.h
>
>  cxx_lib_libcxxasn1_la_SOURCES = \
>--
>2.9.4
>
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-Marty Galligan, m_galligan at comcast.net, c: 978-505-5185