From: Rich Felker <dalias@aerifal.cx>
Date: Fri, 26 Oct 2012 22:15:51 +0000 (-0400)
Subject: further pcc fixes in configure
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=cd31a1fc089ab89fba2720926ea55e69eb311042;hp=3d99266b5e8fc6374a9d930f3ae9d444ffebb11e

further pcc fixes in configure

-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.
---

diff --git a/configure b/configure
index 19c241e6..46d83fcf 100755
--- a/configure
+++ b/configure
@@ -58,7 +58,7 @@ else eval "fnmatch '*/' \"\${$1}\"" && eval "$1=\${$1%/}" ; fi
 tryflag () {
 printf "checking whether compiler accepts %s... " "$2"
 echo "typedef int x;" > "$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"
 eval "$1=\"\${$1} \$2\""
 eval "$1=\${$1# }"
@@ -72,7 +72,7 @@ fi
 tryldflag () {
 printf "checking whether linker accepts %s... " "$2"
 echo "typedef int x;" > "$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"
 eval "$1=\"\${$1} \$2\""
 eval "$1=\${$1# }"
@@ -299,7 +299,8 @@ shared=no
 # Find compiler runtime library
 test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh
 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"