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| author | Christophe Fergeau <cfergeau@gmail.com> | 2011-04-01 18:19:12 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2011-04-04 11:59:59 +0200 |
| commit | d3463ae9af161fe70fefa043bb59b61b331715a9 (patch) | |
| tree | 93a08fdd77c4635af68a71ef087670410ed86263 /configure.ac | |
| parent | 5dd6932bf78080764a1b31bd1e72de5917eb4053 (diff) | |
| download | spice-d3463ae9af161fe70fefa043bb59b61b331715a9.tar.gz spice-d3463ae9af161fe70fefa043bb59b61b331715a9.tar.xz spice-d3463ae9af161fe70fefa043bb59b61b331715a9.zip | |
configure.ac: remove detection of WARN_UNUSED_RESULT
spice configure.ac has some code to detect if the compiler has
a special attribute to tag some functions so that they generate a
warning when their return value isn't checked. However, this test
is broken (the gcc attribute name is "warn_unused_result", not
"__warn_unused_result__" and WARN_UNUSED_RESULT is unused anyway
since spice-protocol provides SPICE_GNUC_WARN_UNUSED_RESULT. Thus
we can just drop that block of code from configure.ac
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/configure.ac b/configure.ac index 5580a5d0..0a4e734a 100644 --- a/configure.ac +++ b/configure.ac @@ -459,20 +459,6 @@ if test $os_win32 == "yes" ; then AC_SUBST(WINDRES) fi -# We only wish to enable attribute(warn_unused_result) if we can prevent -# gcc from generating thousands of warnings about the misapplication of the -# attribute to void functions and variables. -AC_MSG_CHECKING([how to enable unused result warnings]) -warn_unused_result="" -if echo $WARN_CFLAGS | grep -e '-Wno-attributes' >/dev/null; then - AC_TRY_COMPILE([__attribute__((__warn_unused_result__)) - int f (int i) { return i; }], [], - [warn_unused_result="__attribute__((__warn_unused_result__))"]) -fi -AC_DEFINE_UNQUOTED([WARN_UNUSED_RESULT], [$warn_unused_result], - [Define to the value your compiler uses to support the warn-unused-result attribute]) -AC_MSG_RESULT([$warn_unused_result]) - AC_SUBST(WARN_CFLAGS) AC_SUBST(CFLAGS_CFLAGS) |