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Adjusted the test for -Wunused-but-set-variable in spandsp, so it gets the 

answer right with clang.
This commit is contained in:
Steve Underwood 2013-11-01 10:32:32 +08:00
parent b0d95efd09
commit 54ae6ff6c1
1 changed files with 5 additions and 3 deletions
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8
libs/spandsp/configure.ac
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@ -324,9 +324,11 @@ AX_CHECK_EXPORT_CAPABILITY([$host],
saved_CFLAGS="$CFLAGS"
AC_CACHE_CHECK([whether compiler supports -Wunused-but-set-variable], [ac_cv_gcc_unused_but_set_variable], [
CFLAGS="$CFLAGS -Wunused-but-set-variable"
AC_TRY_COMPILE([],[return 0;],[ac_cv_gcc_unused_but_set_variable=yes],[ac_cv_gcc_unused_but_set_variable=no])
])
# We need to add -Werror here or clang doesn't fail (it just warns), even though it doesn't understand the
# -Wunused-but-set-variable tag
CFLAGS="$CFLAGS -Werror -Wunused-but-set-variable"
AC_TRY_COMPILE([],[return 0;],[ac_cv_gcc_unused_but_set_variable=yes],[ac_cv_gcc_unused_but_set_variable=no])
])
AC_MSG_RESULT($ac_cv_gcc_unused_but_set_variable)
CFLAGS="$saved_CFLAGS"