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further pcc fixes in configure

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-lpcc only works if -nostdlib is not passed, so it's useless. instead,
use -print-file-name to look up the full pathname for libpcc.a, and
check whether that succeeds before trying to link with the result.

also, silence pcc's junk printed on stdout during tests.
This commit is contained in:
Rich Felker 2012-10-26 18:15:51 -04:00
parent 3d99266b5e
commit cd31a1fc08
1 changed files with 4 additions and 3 deletions
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7
configure vendored
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@ -58,7 +58,7 @@ else eval "fnmatch '*/' \"\${$1}\"" && eval "$1=\${$1%/}" ; fi
tryflag () { tryflag () {
printf "checking whether compiler accepts %s... " "$2" printf "checking whether compiler accepts %s... " "$2"
echo "typedef int x;" > "$tmpc" echo "typedef int x;" > "$tmpc"
if $CC "$2" -c -o /dev/null "$tmpc" 2>/dev/null ; then if $CC "$2" -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
printf "yes\n" printf "yes\n"
eval "$1=\"\${$1} \$2\"" eval "$1=\"\${$1} \$2\""
eval "$1=\${$1# }" eval "$1=\${$1# }"
@ -72,7 +72,7 @@ fi
tryldflag () { tryldflag () {
printf "checking whether linker accepts %s... " "$2" printf "checking whether linker accepts %s... " "$2"
echo "typedef int x;" > "$tmpc" echo "typedef int x;" > "$tmpc"
if $CC -nostdlib -shared "$2" -o /dev/null "$tmpc" 2>/dev/null ; then if $CC -nostdlib -shared "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
printf "yes\n" printf "yes\n"
eval "$1=\"\${$1} \$2\"" eval "$1=\"\${$1} \$2\""
eval "$1=\${$1# }" eval "$1=\${$1# }"
@ -299,7 +299,8 @@ shared=no
# Find compiler runtime library # Find compiler runtime library
test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh
test -z "$LIBCC" && tryldflag LIBCC -lcompiler_rt test -z "$LIBCC" && tryldflag LIBCC -lcompiler_rt
test -z "$LIBCC" && tryldflag LIBCC -lpcc test -z "$LIBCC" && try_libcc=`$CC -print-file-name=libpcc.a 2>/dev/null` \
&& tryldflag LIBCC "$try_libcc"
printf "using compiler runtime libraries: %s\n" "$LIBCC" printf "using compiler runtime libraries: %s\n" "$LIBCC"