gcc: Add patch to allow disabling of libstdc++ linkage and hence fix gcc-runtime which was having broken configure tests due to the linker failures and assuming maths primitives were not in libm
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
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@ -53,6 +53,7 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \
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file://zecke-xgcc-cpp.patch;patch=1 \
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file://gcc-flags-for-build.patch;patch=1 \
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file://pr35942.patch;patch=1 \
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file://optional_libstdc.patch;patch=1 \
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"
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SRC_URI_append_sh3 = " file://sh3-installfix-fixheaders.patch;patch=1 "
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@ -0,0 +1,23 @@
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gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++
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will not run correctly since my default the linker will try and link against libstdc++
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which shouldn't exist yet. We need an option to disable the automatically added -lstdc++
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option whilst leaving -lc, -lgcc and other automatic library dependencies. This patch
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adds such an option which only disables the -lstdc++ linkage.
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A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to
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do this officially, the likely answer is don't build libstdc++ separately.
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RP 29/6/10
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Index: gcc-4.3.3/gcc/cp/g++spec.c
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===================================================================
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--- gcc-4.3.3.orig/gcc/cp/g++spec.c 2010-06-29 00:06:03.901695025 +0100
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+++ gcc-4.3.3/gcc/cp/g++spec.c 2010-06-29 00:06:58.800325439 +0100
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@@ -131,6 +131,7 @@
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if (argv[i][0] == '-')
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{
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if (strcmp (argv[i], "-nostdlib") == 0
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+ || strcmp (argv[i], "-nostdlib++") == 0
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|| strcmp (argv[i], "-nodefaultlibs") == 0)
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{
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library = -1;
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@ -13,7 +13,7 @@ RUNTIMETARGET = "libssp libstdc++-v3"
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# libgfortran
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do_configure () {
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export CXX="${CXX} -nostdinc++"
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export CXX="${CXX} -nostdinc++ -nostdlib++"
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for d in ${RUNTIMETARGET}; do
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echo "Configuring $d"
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mkdir -p ${B}/$d/
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@ -1,4 +1,4 @@
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PR = "r12"
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PR = "r14"
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require gcc-${PV}.inc
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require gcc-cross4.inc
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@ -1,4 +1,4 @@
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PR = "r12"
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PR = "r14"
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require gcc-${PV}.inc
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require gcc-configure-runtime.inc
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