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configure: Silence error messages when probing compiler.

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On Xcode's clang on OS X, $cc --version will output a 'Configured with:'
line to stderr, which clobbers the configure script output. As this line
serves no further purpose, it should be silenced.

The same applies to apple-gcc 4.2.1, which complains that it can not
understand the kernel version it is running on.

Reviewed-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Shiz 2015-08-03 12:20:59 +02:00 committed by Michael Niedermayer
parent e322b7061f
commit 2480da12a4
1 changed files with 3 additions and 3 deletions
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6
configure vendored
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@ -3551,8 +3551,8 @@ probe_cc(){
true # no-op to avoid reading stdin in following checks
elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
_type=llvm_gcc
gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
_ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
_ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O3'
_cflags_size='-Os'
@ -3616,7 +3616,7 @@ probe_cc(){
_flags_filter=tms470_flags
elif $_cc -v 2>&1 | grep -q clang; then
_type=clang
_ident=$($_cc --version | head -n1)
_ident=$($_cc --version 2>/dev/null | head -n1)
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O3'
_cflags_size='-Os'