[PATCH 5 of 5] cc/gcc: add an option to enable/disable build of libgomp

["Yann E. MORIN" <yann dot morin dot 1998 at anciens dot enib dot fr>]

# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1286575138 -7200
# Node ID 184353ce40b8052a9b7f705661cf5e0ac8fa685a
# Parent  1c0473bc2fdf80323fda25a4052d944e11b8b017
cc/gcc: add an option to enable/disable build of libgomp

libgomp is the GNU implementation of the OpenMP API.
It can be usefull to have or miss, depends...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff --git a/config/cc/gcc.in.2 b/config/cc/gcc.in.2
--- a/config/cc/gcc.in.2
+++ b/config/cc/gcc.in.2
@@ -62,6 +62,18 @@
       alternatives (eg. DUMA, dmalloc...) that need neither re-
       compilation nor re-link.
 
+config CC_GCC_LIBGOMP
+    bool
+    prompt "Compile libgomp"
+    default n
+    help
+      libgomp is "the GNU implementation of the OpenMP Application Programming
+      Interface (API) for multi-platform shared-memory parallel programming in
+      C/C++ and Fortran". See:
+        http://gcc.gnu.org/onlinedocs/libgomp/
+      
+      The default is 'N'. Say 'Y' if you need it, and report succes/failure.
+
 #-----------------------------------------------------------------------------
 
 comment "Misc. obscure options."
diff --git a/scripts/build/cc/gcc.sh b/scripts/build/cc/gcc.sh
--- a/scripts/build/cc/gcc.sh
+++ b/scripts/build/cc/gcc.sh
@@ -371,6 +371,11 @@
     else
         extra_config+=(--disable-libmudflap)
     fi
+    if [ "${CT_CC_GCC_LIBGOMP}" = "y" ]; then
+        extra_config+=(--enable-libgomp)
+    else
+        extra_config+=(--disable-libgomp)
+    fi
 
     if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
         # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
@@ -408,6 +413,7 @@
     if [ "${CT_THREADS}" = "none" ]; then
         extra_config+=("--disable-threads")
         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
+            CT_Test "Disabling libgomp for no-thread gcc>=4.2" "${CT_CC_GCC_LIBGOMP}" = "Y"
             extra_config+=("--disable-libgomp")
         fi
     else



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