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trylink: only prefix libs with -l

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If our pkg-config queries pass back a flag like -pthread, the trylink
script will expand that to -l-pthread.  So change trylink to only add
the -l prefix to a value that doesn't have a - prefix already.

Reported-by: thaehaid@incognitomail.org
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2013-09-12 00:29:40 -04:00
parent 054f3eb784
commit 3eab2b7675
1 changed files with 3 additions and 3 deletions
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6
scripts/trylink
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@ -117,7 +117,7 @@ LDLIBS=`echo "$LDLIBS" | xargs -n1 | sort | uniq | xargs`
# First link with all libs. If it fails, bail out
echo "Trying libraries: $LDLIBS"
# "lib1 lib2 lib3" -> "-llib1 -llib2 -llib3"
l_list=`echo "$LDLIBS" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'`
l_list=`echo " $LDLIBS " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
test "x$l_list" != "x" && l_list="$START_GROUP $l_list $END_GROUP"
try $CC $CFLAGS $LDFLAGS \
-o $EXE \
@ -141,7 +141,7 @@ while test "$LDLIBS"; do
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$//'`
l_list=`echo " $without_one " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
test x"$l_list" != x"" && l_list="$START_GROUP $l_list $END_GROUP"
$debug && echo "Trying -l options: '$l_list'"
try $CC $CFLAGS $LDFLAGS \
@ -172,7 +172,7 @@ done
# Make the binary with final, minimal list of libs
echo "Final link with: ${LDLIBS:-<none>}"
l_list=`echo "$LDLIBS" | sed -e 's/ / -l/g' -e 's/^/-l/' -e 's/^-l$//'`
l_list=`echo " $LDLIBS " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
test "x$l_list" != "x" && l_list="$START_GROUP $l_list $END_GROUP"
# --verbose gives us gobs of info to stdout (e.g. linker script used)
if ! test -f busybox_ldscript; then