diff options
Diffstat (limited to 'scripts/trylink')
| -rwxr-xr-x | scripts/trylink | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/scripts/trylink b/scripts/trylink index c24d49d52..adc045ad8 100755 --- a/scripts/trylink +++ b/scripts/trylink @@ -126,11 +126,12 @@ try $CC $CFLAGS $LDFLAGS \ while test "$LDLIBS"; do $debug && echo "Trying libraries: $LDLIBS" all_needed=true + last_needed=false for one in $LDLIBS; do without_one=`echo " $LDLIBS " | sed "s/ $one / /g" | xargs` # "lib1 lib2 lib3" -> "-llib1 -llib2 -llib3" l_list=`echo "$without_one" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'` - test "x$l_list" != "x" && l_list="-Wl,--start-group $l_list -Wl,--end-group" + test x"$l_list" != x"" && l_list="-Wl,--start-group $l_list -Wl,--end-group" $debug && echo "Trying -l options: '$l_list'" try $CC $CFLAGS $LDFLAGS \ -o $EXE \ @@ -143,16 +144,19 @@ while test "$LDLIBS"; do echo " Library $one is not needed" LDLIBS="$without_one" all_needed=false + last_needed=false else echo " Library $one is needed" + last_needed=true fi done # All libs were needed, can't remove any $all_needed && break - # If there is no space char, the list has just one lib. - # I'm not sure that in this case lib really is 100% needed. - # Let's try linking without it anyway... thus commented out. - #{ echo "$LDLIBS" | grep -q ' '; } || break + # Optimization: was the last tried lib needed? + if $last_needed; then + # Was it the only one lib left? Don't test again then. + { echo "$LDLIBS" | grep -q ' '; } || break + fi done # Make the binary with final, minimal list of libs |