This patch adds an AC_ARG_ENABLE option to build/not build
libstdc++-v3. I wrote the patch in order to allow the user to override
the automatic disable for libstdc++-v3 for certain targets.
Patch is against configure.ac in trunk.
Robert Mason
>From 69c085f3742e94501f4a202d1321e143afe9a115 Mon Sep 17 00:00:00 2001
From: rbmj <r...@verizon.net>
Date: Tue, 22 May 2012 16:32:02 -0400
Subject: [PATCH] Added --enable-libstdc++-v3 option.
---
configure.ac | 38 +++++++++++++++++++++++++-------------
1 files changed, 25 insertions(+), 13 deletions(-)
diff --git a/configure.ac b/configure.ac
index 378e9f5..c06b400 100644
--- a/configure.ac
+++ b/configure.ac
@@ -425,6 +425,15 @@ AC_ARG_ENABLE(libssp,
ENABLE_LIBSSP=$enableval,
ENABLE_LIBSSP=yes)
+AC_ARG_ENABLE(libstdc++-v3,
+AS_HELP_STRING([--disable-libstdc++-v3],
+ [do not build libstdc++-v3 directory]),
+ENABLE_LIBSTDCXX=$enableval,
+ENABLE_LIBSTDCXX=default)
+if test "${ENABLE_LIBSTDCXX}" = "no" ; then
+ noconfigdirs="$noconfigdirs libstdc++-v3"
+fi
+
# Save it here so that, even in case of --enable-libgcj, if the Java
# front-end isn't enabled, we still get libgcj disabled.
libgcj_saved=$libgcj
@@ -544,19 +553,22 @@ case "${target}" in
esac
# Disable libstdc++-v3 for some systems.
-case "${target}" in
- *-*-vxworks*)
- # VxWorks uses the Dinkumware C++ library.
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
- arm*-wince-pe*)
- # the C++ libraries don't build on top of CE's C libraries
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
- avr-*-*)
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
-esac
+# Allow user to override this if they pass --enable-libstdc++-v3
+if test "${ENABLE_LIBSTDCXX}" = "default" ; then
+ case "${target}" in
+ *-*-vxworks*)
+ # VxWorks uses the Dinkumware C++ library.
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ arm*-wince-pe*)
+ # the C++ libraries don't build on top of CE's C libraries
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ esac
+fi
# Disable Fortran for some systems.
case "${target}" in
--
1.7.5.4
