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| author | Simon McVittie <simon.mcvittie@collabora.co.uk> | 2011-01-05 19:10:12 +0000 |
|---|---|---|
| committer | Simon McVittie <simon.mcvittie@collabora.co.uk> | 2011-01-05 19:10:12 +0000 |
| commit | d83d74dc6833d127032dc18b1b1aac27cb974015 (patch) | |
| tree | 684e8f7725fc3a22816856bd8c72551a220a0c98 /configure.in | |
| parent | 916620ea96904ac88503f4b4a47e7e38024d64e4 (diff) | |
| download | dbus-d83d74dc6833d127032dc18b1b1aac27cb974015.tar.gz dbus-d83d74dc6833d127032dc18b1b1aac27cb974015.tar.bz2 dbus-d83d74dc6833d127032dc18b1b1aac27cb974015.zip | |
configure.in: use AC_TRY_COMPILE to avoid a symlink attack in /tmp during compilation
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/configure.in b/configure.in index 842a359b..aec3419f 100644 --- a/configure.in +++ b/configure.in @@ -1085,17 +1085,13 @@ fi #### gcc warning flags cc_supports_flag() { - AC_MSG_CHECKING(whether $CC supports "$@") - Cfile=/tmp/foo${$} - touch ${Cfile}.c - $CC -c "$@" ${Cfile}.c -o ${Cfile}.o >/dev/null 2>&1 - rc=$? - rm -f ${Cfile}.c ${Cfile}.o - case $rc in - 0) AC_MSG_RESULT(yes);; - *) AC_MSG_RESULT(no);; - esac - return $rc + AC_MSG_CHECKING(whether $CC supports "$*") + save_CFLAGS="$CFLAGS" + CFLAGS="$*" + AC_TRY_COMPILE([], [], [rc=yes], [rc=no]) + CFLAGS="$save_CFLAGS" + AC_MSG_RESULT([$rc]) + test "x$rc" = xyes } ld_supports_flag() { |