diff options
Diffstat (limited to 'gcc/aclocal.m4')
| -rw-r--r-- | gcc/aclocal.m4 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index da6e38a780b..6c12bfb458c 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -711,7 +711,13 @@ dnl shut up useless "checking for..." messages dnl we can still read them in config.log exec AS_MESSAGE_FD([])>/dev/null if test "x[$]$1" = x; then - AC_PATH_PROGS($1, $2, , $gcc_cv_tool_dirs) + # The AC_PATH_PROGS macro doesn't work properly when its 4th argument + # is empty. + if test "x$gcc_cv_tool_dirs" = x; then + $1= + else + AC_PATH_PROGS($1, $2, , $gcc_cv_tool_dirs) + fi fi if test "x[$]$1" = x; then # If the loop above did not find a tool, then use whatever |