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ICU-10271 tweak to configure test for C++11 #include <atomic>.

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X-SVN-Rev: 33992
This commit is contained in:
Andy Heninger 2013-07-25 20:41:57 +00:00
parent 41b7ee189d
commit a04e4eb615
2 changed files with 6 additions and 0 deletions
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3
icu4c/source/configure vendored
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@ -5630,6 +5630,8 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if #include <atomic> works" >&5
$as_echo_n "checking if #include <atomic> works... " >&6; }
OLD_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${CXXFLAGS} -std=c++11"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <atomic>
@ -5655,6 +5657,7 @@ then
else
U_HAVE_ATOMIC=0
fi
CXXFLAGS="${OLD_CXXFLAGS}"
# Make this available via CPPFLAGS
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_ATOMIC=${U_HAVE_ATOMIC}"

3
icu4c/source/configure.in
View File

@ -476,6 +476,8 @@ AC_SUBST(U_HAVE_STD_STRING)
AC_MSG_CHECKING([[if #include <atomic> works]])
OLD_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${CXXFLAGS} -std=c++11"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <atomic>]], [[]])], [ac_cv_header_atomic=yes], [ac_cv_header_atomic=no])
AC_MSG_RESULT($ac_cv_header_atomic)
if test $ac_cv_header_atomic = yes
@ -484,6 +486,7 @@ then
else
U_HAVE_ATOMIC=0
fi
CXXFLAGS="${OLD_CXXFLAGS}"
# Make this available via CPPFLAGS
CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_ATOMIC=${U_HAVE_ATOMIC}"
AC_SUBST(U_HAVE_ATOMIC)