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cc/gcc: add option to use system zlib

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In some cases, it might be desirable to use the system zlib

Eg. because latest gcc seem to be totally borked when it comes
to multilib, and tries to build a multilib host zlib, when it
is *absolutely* *not* needed: we want mulitlib on the target,
not on the host! Sigh... :-(

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Yann E. MORIN" 2011-12-31 16:23:27 +01:00
parent 13a05a4720
commit 92744ca68f
2 changed files with 21 additions and 0 deletions
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13
config/cc/gcc.in.2
View File

@ -53,6 +53,19 @@ config CC_STATIC_LIBSTDCXX
having to worry about distributing the matching version of libstdc++
along with it.
config CC_GCC_SYSTEM_ZLIB
bool
prompt "Use system zlib"
depends on EXPERIMENTAL
help
Do not use bundled zlib, and use the zlib already available for
the host (eg. the system library).
If you want to build a static toolchain, you will need to also
install the static version of zlib for your host.
If unsure, say 'n'.
#-----------------------------------------------------------------------------
# Optimisation features

8
scripts/build/cc/gcc.sh
View File

@ -293,6 +293,10 @@ do_cc_core() {
[ "${CT_CC_GCC_DISABLE_PCH}" = "y" ] && extra_config+=("--disable-libstdcxx-pch")
if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then
extra_config+=("--with-system-zlib")
fi
CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
# Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
@ -603,6 +607,10 @@ do_cc() {
[ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] && extra_config+=("--disable-nls")
if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then
extra_config+=("--with-system-zlib")
fi
CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
CT_DoExecLog CFG \