Add check for -pipe feature for gcc variants rather than hardcoding it for some platforms.

Bug #81031 r=wtc

2 files changed, 226 insertions, 119 deletions

diff --git a/configure b/configure
index 2eff5f2f..a5b827e4 100755
--- a/configure
+++ b/configure
@@ -39,6 +39,8 @@ ac_help="$ac_help
 ac_help="$ac_help
   --enable-mdupdate       Enable use of certain compilers' mdupdate feature"
 ac_help="$ac_help
+  --disable-gcc-pipe      Disable -pipe check for gcc"
+ac_help="$ac_help
   --enable-strip          Enable stripping of shared libs and programs"
 ac_help="$ac_help
   --with-pthreads         Use system pthreads library as thread subsystem"
@@ -614,7 +616,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:618: checking host system type" >&5
+echo "configure:620: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -635,7 +637,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:639: checking target system type" >&5
+echo "configure:641: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -653,7 +655,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:657: checking build system type" >&5
+echo "configure:659: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -960,7 +962,7 @@ if test -z "$SKIP_PATH_CHECKS"; then
     # Extract the first word of "$WHOAMI whoami", so it can be a program name with args.
 set dummy $WHOAMI whoami; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:964: checking for $ac_word" >&5
+echo "configure:966: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_WHOAMI'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1025,14 +1027,14 @@ if test "$target" != "$host"; then
     _SAVE_LDFLAGS="$LDFLAGS"
 
     echo $ac_n "checking for $host compiler""... $ac_c" 1>&6
-echo "configure:1029: checking for $host compiler" >&5
+echo "configure:1031: checking for $host compiler" >&5
     if test -z "$HOST_CC"; then
 	    for ac_prog in gcc cc /usr/ucb/cc
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1036: checking for $ac_word" >&5
+echo "configure:1038: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_HOST_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1079,16 +1081,16 @@ test -n "$HOST_CC" || HOST_CC=""""
     LDFLAGS="$HOST_LDFLAGS"
 
     echo $ac_n "checking whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1083: checking whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works" >&5
+echo "configure:1085: checking whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works" >&5
     cat > conftest.$ac_ext <<EOF
-#line 1085 "configure"
+#line 1087 "configure"
 #include "confdefs.h"
 
 int main() {
 return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:1092: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1094: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_prog_host_cc_works=1 echo "$ac_t""yes" 1>&6
 else
@@ -1109,7 +1111,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1113: checking for $ac_word" >&5
+echo "configure:1115: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1144,7 +1146,7 @@ test -n "$CC" || CC="echo"
     # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1148: checking for $ac_word" >&5
+echo "configure:1150: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1174,7 +1176,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1178: checking for $ac_word" >&5
+echo "configure:1180: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1225,7 +1227,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1229: checking for $ac_word" >&5
+echo "configure:1231: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1257,7 +1259,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1261: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1263: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1268,12 +1270,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1272 "configure"
+#line 1274 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:1277: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1279: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1299,12 +1301,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1303: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1305: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1308: checking whether we are using GNU C" >&5
+echo "configure:1310: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1313,7 +1315,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1317: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1319: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1332,7 +1334,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1336: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1338: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1369,7 +1371,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1373: checking for $ac_word" >&5
+echo "configure:1375: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1406,7 +1408,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1410: checking for $ac_word" >&5
+echo "configure:1412: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1438,7 +1440,7 @@ test -n "$CXX" || CXX="gcc"
 
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1442: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:1444: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1449,12 +1451,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1453 "configure"
+#line 1455 "configure"
 #include "confdefs.h"
 
 int main(){return(0);}
 EOF
-if { (eval echo configure:1458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1460: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1480,12 +1482,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1484: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1486: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
 echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:1489: checking whether we are using GNU C++" >&5
+echo "configure:1491: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1494,7 +1496,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1498: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1500: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1513,7 +1515,7 @@ ac_test_CXXFLAGS="${CXXFLAGS+set}"
 ac_save_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS=
 echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1517: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1519: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1550,7 +1552,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1554: checking for $ac_word" >&5
+echo "configure:1556: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1587,7 +1589,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1591: checking for $ac_word" >&5
+echo "configure:1593: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1624,7 +1626,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1628: checking for $ac_word" >&5
+echo "configure:1630: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1661,7 +1663,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1665: checking for $ac_word" >&5
+echo "configure:1667: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1698,7 +1700,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1702: checking for $ac_word" >&5
+echo "configure:1704: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_STRIP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1735,7 +1737,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1739: checking for $ac_word" >&5
+echo "configure:1741: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_DLLTOOL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1772,7 +1774,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1776: checking for $ac_word" >&5
+echo "configure:1778: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_WINDRES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1810,7 +1812,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1814: checking for $ac_word" >&5
+echo "configure:1816: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1842,7 +1844,7 @@ test -n "$CXX" || CXX="gcc"
 
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1846: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:1848: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1853,12 +1855,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1857 "configure"
+#line 1859 "configure"
 #include "confdefs.h"
 
 int main(){return(0);}
 EOF
-if { (eval echo configure:1862: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1864: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1884,12 +1886,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1888: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1890: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
 echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:1893: checking whether we are using GNU C++" >&5
+echo "configure:1895: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1898,7 +1900,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1902: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1904: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1917,7 +1919,7 @@ ac_test_CXXFLAGS="${CXXFLAGS+set}"
 ac_save_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS=
 echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1921: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1923: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1954,7 +1956,7 @@ fi
         # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1958: checking for $ac_word" >&5
+echo "configure:1960: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1984,7 +1986,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1988: checking for $ac_word" >&5
+echo "configure:1990: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2035,7 +2037,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2039: checking for $ac_word" >&5
+echo "configure:2041: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2067,7 +2069,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2071: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2073: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2078,12 +2080,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 2082 "configure"
+#line 2084 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:2087: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2089: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -2109,12 +2111,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:2113: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2115: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:2118: checking whether we are using GNU C" >&5
+echo "configure:2120: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2123,7 +2125,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2127: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2129: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -2142,7 +2144,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:2146: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:2148: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2175,7 +2177,7 @@ fi
 
     fi
     echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:2179: checking how to run the C preprocessor" >&5
+echo "configure:2181: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -2190,13 +2192,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 2194 "configure"
+#line 2196 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2200: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2202: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2207,13 +2209,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 2211 "configure"
+#line 2213 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2217: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2219: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2224,13 +2226,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 2228 "configure"
+#line 2230 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2234: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2236: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2257,7 +2259,7 @@ echo "$ac_t""$CPP" 1>&6
     # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2261: checking for $ac_word" >&5
+echo "configure:2263: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2289,7 +2291,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2293: checking for $ac_word" >&5
+echo "configure:2295: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2330,7 +2332,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2334: checking for $ac_word" >&5
+echo "configure:2336: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2371,7 +2373,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2375: checking for $ac_word" >&5
+echo "configure:2377: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2412,7 +2414,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2416: checking for $ac_word" >&5
+echo "configure:2418: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_STRIP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2453,7 +2455,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2457: checking for $ac_word" >&5
+echo "configure:2459: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_DLLTOOL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2494,7 +2496,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2498: checking for $ac_word" >&5
+echo "configure:2500: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_WINDRES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2541,6 +2543,9 @@ fi
 if test "$GCC" = "yes"; then
     GNU_CC=1
 fi
+if test "$GXX" = "yes"; then
+    GNU_CXX=1
+fi
 if test "`echo | $AS -V 2>&1 | grep -c GNU`" != "0"; then
     GNU_AS=1
 fi
@@ -2552,6 +2557,64 @@ else
     CROSS_COMPILE=
 fi
 
+# Check whether --enable-gcc-pipe or --disable-gcc-pipe was given.
+if test "${enable_gcc_pipe+set}" = set; then
+  enableval="$enable_gcc_pipe"
+  NO_GCC_PIPE=1
+fi
+
+
+echo $ac_n "checking for gcc -pipe support""... $ac_c" 1>&6
+echo "configure:2569: checking for gcc -pipe support" >&5
+
+if test -n "$NO_GCC_PIPE"; then
+    echo "$ac_t""disabled" 1>&6
+elif test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
+    echo '#include <stdio.h>' > dummy-hello.c
+    echo 'int main() { printf("Hello World\n"); exit(0); }' >> dummy-hello.c
+    ${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
+    cat dummy-hello.s | ${AS} -o dummy-hello.S - 2>&5
+    if test $? = 0; then
+        _res_as_stdin="yes"
+    else
+        _res_as_stdin="no"
+    fi
+    if test "$_res_as_stdin" = "yes"; then
+        _SAVE_CFLAGS=$CFLAGS
+        CFLAGS="$CFLAGS -pipe"
+        cat > conftest.$ac_ext <<EOF
+#line 2587 "configure"
+#include "confdefs.h"
+ #include <stdio.h> 
+int main() {
+printf("Hello World\n");
+; return 0; }
+EOF
+if { (eval echo configure:2594: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  _res_gcc_pipe="yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  _res_gcc_pipe="no" 
+fi
+rm -f conftest*
+        CFLAGS=$_SAVE_CFLAGS
+    fi
+    if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
+        _res="yes";
+        CFLAGS="$CFLAGS -pipe"
+        CXXFLAGS="$CXXFLAGS -pipe"
+    else
+        _res="no"
+    fi
+    rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
+    echo "$ac_t""$_res" 1>&6
+else
+    echo "$ac_t""no" 1>&6
+fi
+
 fi # SKIP_COMPILER_CHECKS
 
 if test -z "$SKIP_PATH_CHECKS"; then
@@ -2560,7 +2623,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2564: checking for $ac_word" >&5
+echo "configure:2627: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2784,17 +2847,17 @@ EOF
     DSO_LDOPTS='-brtl -bM:SRE -bnoentry -bexpall'
     ac_safe=`echo "sys/atomic_op.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for sys/atomic_op.h""... $ac_c" 1>&6
-echo "configure:2788: checking for sys/atomic_op.h" >&5
+echo "configure:2851: checking for sys/atomic_op.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2793 "configure"
+#line 2856 "configure"
 #include "confdefs.h"
 #include <sys/atomic_op.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2798: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2861: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3113,7 +3176,7 @@ EOF
 #define HAVE_BSD_FLOCK 1
 EOF
 
-    CFLAGS="$CFLAGS -Wmost -fno-common -pipe"
+    CFLAGS="$CFLAGS -Wmost -fno-common"
     if echo $OS_TEST | grep -c 86 2>/dev/null; then
         CFLAGS="$CFLAGS -mno-486"
         cat >> confdefs.h <<\EOF
@@ -3191,7 +3254,7 @@ EOF
 #define HAVE_BSD_FLOCK 1
 EOF
 
-    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall"
     MOZ_OBJFORMAT=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
     if test "$MOZ_OBJFORMAT" = "elf"; then
         DLL_SUFFIX=so
@@ -3550,8 +3613,8 @@ EOF
 #define linux 1
 EOF
 
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     MDCPUCFG_H=_linux.cfg
     PR_MD_CSRCS=linux.c
     MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
@@ -3801,8 +3864,8 @@ EOF
         CFLAGS="$CFLAGS -Hnocopyr"
         CXXFLAGS="$CXXFLAGS -Hnocopyr"
     else
-        CFLAGS="$CFLAGS -fPIC -Wall -pipe"
-        CXXFLAGS="$CXXFLAGS -fPIC -Wall -pipe"
+        CFLAGS="$CFLAGS -fPIC -Wall"
+        CXXFLAGS="$CXXFLAGS -fPIC -Wall"
         DSO_LDOPTS=-G
     fi
     MDCPUCFG_H=_ncr.cfg
@@ -3859,8 +3922,8 @@ EOF
     PR_MD_CSRCS=netbsd.c
 
     DSO_CFLAGS='-fPIC -DPIC'
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
 
     if test -z "$OBJECT_FMT"; then
@@ -3934,8 +3997,8 @@ EOF
 #define _POSIX_SOURCE 1
 EOF
 
-    CFLAGS="$CFLAGS -Wall -fno-common -pipe -traditional-cpp -posix"
-    CXXFLAGS="$CXXFLAGS -Wall -fno-common -pipe -traditional-cpp -posix"
+    CFLAGS="$CFLAGS -Wall -fno-common -traditional-cpp -posix"
+    CXXFLAGS="$CXXFLAGS -Wall -fno-common -traditional-cpp -posix"
     USE_NSPR_THREADS=1
     DLL_SUFFIX=dylib
     MDCPUCFG_H=_nextstep.cfg
@@ -3983,8 +4046,8 @@ EOF
 #define HAVE_BSD_FLOCK 1
 EOF
 
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     DLL_SUFFIX=so.1.0
     DSO_CFLAGS=-fPIC
     MDCPUCFG_H=_openbsd.cfg
@@ -4051,17 +4114,17 @@ EOF
 
     ac_safe=`echo "machine/builtins.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for machine/builtins.h""... $ac_c" 1>&6
-echo "configure:4055: checking for machine/builtins.h" >&5
+echo "configure:4118: checking for machine/builtins.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4060 "configure"
+#line 4123 "configure"
 #include "confdefs.h"
 #include <machine/builtins.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4065: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4128: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4215,7 +4278,6 @@ EOF
         AS='$(CC) -x assembler-with-cpp'
         if test "$CPU_ARCH" = "mips"; then
             LD=gld
-            CFLAGS="$CFLAGS -pipe"
         fi
         CFLAGS="$CFLAGS -Wall -Wno-format"
     else
@@ -4572,12 +4634,12 @@ esac
 if test -z "$SKIP_LIBRARY_CHECKS"; then
 
 echo $ac_n "checking for dlopen""... $ac_c" 1>&6
-echo "configure:4576: checking for dlopen" >&5
+echo "configure:4638: checking for dlopen" >&5
 if eval "test \"`echo '$''{'ac_cv_func_dlopen'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4581 "configure"
+#line 4643 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char dlopen(); below.  */
@@ -4600,7 +4662,7 @@ dlopen();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4604: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4666: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_dlopen=yes"
 else
@@ -4619,7 +4681,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:4623: checking for dlopen in -ldl" >&5
+echo "configure:4685: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4627,7 +4689,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4631 "configure"
+#line 4693 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4638,7 +4700,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:4642: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4704: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4666,13 +4728,13 @@ fi
 
 if test $ac_cv_prog_gcc = yes; then
     echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
-echo "configure:4670: checking whether ${CC-cc} needs -traditional" >&5
+echo "configure:4732: checking whether ${CC-cc} needs -traditional" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
     ac_pattern="Autoconf.*'x'"
   cat > conftest.$ac_ext <<EOF
-#line 4676 "configure"
+#line 4738 "configure"
 #include "confdefs.h"
 #include <sgtty.h>
 Autoconf TIOCGETP
@@ -4690,7 +4752,7 @@ rm -f conftest*
 
   if test $ac_cv_prog_gcc_traditional = no; then
     cat > conftest.$ac_ext <<EOF
-#line 4694 "configure"
+#line 4756 "configure"
 #include "confdefs.h"
 #include <termio.h>
 Autoconf TCGETA
@@ -4714,12 +4776,12 @@ fi
 for ac_func in lchown strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4718: checking for $ac_func" >&5
+echo "configure:4780: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4723 "configure"
+#line 4785 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4742,7 +4804,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4746: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4808: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4780,7 +4842,7 @@ fi
 
 
 echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
-echo "configure:4784: checking for pthread_create in -lpthreads" >&5
+echo "configure:4846: checking for pthread_create in -lpthreads" >&5
 echo "
     #include <pthread.h> 
     void *foo(void *v) { int a = 1;  } 
@@ -4802,7 +4864,7 @@ echo "
         echo "$ac_t""no" 1>&6
         
 echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:4806: checking for pthread_create in -lpthread" >&5
+echo "configure:4868: checking for pthread_create in -lpthread" >&5
 echo "
     #include <pthread.h> 
     void *foo(void *v) { int a = 1;  } 
@@ -4824,7 +4886,7 @@ echo "
         echo "$ac_t""no" 1>&6
         
 echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
-echo "configure:4828: checking for pthread_create in -lc_r" >&5
+echo "configure:4890: checking for pthread_create in -lc_r" >&5
 echo "
     #include <pthread.h> 
     void *foo(void *v) { int a = 1;  } 
@@ -4846,7 +4908,7 @@ echo "
         echo "$ac_t""no" 1>&6
         
 echo $ac_n "checking for pthread_create in -lc""... $ac_c" 1>&6
-echo "configure:4850: checking for pthread_create in -lc" >&5
+echo "configure:4912: checking for pthread_create in -lc" >&5
 echo "
     #include <pthread.h> 
     void *foo(void *v) { int a = 1;  } 
@@ -4996,7 +5058,7 @@ if test -n "$USE_PTHREADS"; then
       rm -f conftest*
    ac_cv_have_dash_pthread=no
    echo $ac_n "checking whether ${CC-cc} accepts -pthread""... $ac_c" 1>&6
-echo "configure:5000: checking whether ${CC-cc} accepts -pthread" >&5
+echo "configure:5062: checking whether ${CC-cc} accepts -pthread" >&5
    echo 'int main() { return 0; }' | cat > conftest.c
    ${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
    if test $? -eq 0; then
@@ -5012,7 +5074,7 @@ echo "configure:5000: checking whether ${CC-cc} accepts -pthread" >&5
 			    ac_cv_have_dash_pthreads=no
     if test "$ac_cv_have_dash_pthread" = "no"; then
 	    echo $ac_n "checking whether ${CC-cc} accepts -pthreads""... $ac_c" 1>&6
-echo "configure:5016: checking whether ${CC-cc} accepts -pthreads" >&5
+echo "configure:5078: checking whether ${CC-cc} accepts -pthreads" >&5
     	echo 'int main() { return 0; }' | cat > conftest.c
 	    ${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
     	if test $? -eq 0; then
diff --git a/configure.in b/configure.in
index 67edf890..9c311fc3 100644
--- a/configure.in
+++ b/configure.in
@@ -425,6 +425,9 @@ fi
 if test "$GCC" = "yes"; then
     GNU_CC=1
 fi
+if test "$GXX" = "yes"; then
+    GNU_CXX=1
+fi
 if test "`echo | $AS -V 2>&1 | grep -c GNU`" != "0"; then
     GNU_AS=1
 fi
@@ -436,6 +439,49 @@ else
     CROSS_COMPILE=
 fi
 
+dnl ========================================================
+dnl Check for gcc -pipe support
+dnl ========================================================
+AC_ARG_ENABLE(gcc-pipe,
+    [  --disable-gcc-pipe      Disable -pipe check for gcc],
+    NO_GCC_PIPE=1)
+
+AC_MSG_CHECKING([for gcc -pipe support])
+
+if test -n "$NO_GCC_PIPE"; then
+    AC_MSG_RESULT([disabled])
+elif test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
+    echo '#include <stdio.h>' > dummy-hello.c
+    echo 'int main() { printf("Hello World\n"); exit(0); }' >> dummy-hello.c
+    ${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
+    cat dummy-hello.s | ${AS} -o dummy-hello.S - 2>&5
+    if test $? = 0; then
+        _res_as_stdin="yes"
+    else
+        _res_as_stdin="no"
+    fi
+    if test "$_res_as_stdin" = "yes"; then
+        _SAVE_CFLAGS=$CFLAGS
+        CFLAGS="$CFLAGS -pipe"
+        AC_TRY_COMPILE( [ #include <stdio.h> ],
+            [printf("Hello World\n");],
+            [_res_gcc_pipe="yes"],
+            [_res_gcc_pipe="no"] )
+        CFLAGS=$_SAVE_CFLAGS
+    fi
+    if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
+        _res="yes";
+        CFLAGS="$CFLAGS -pipe"
+        CXXFLAGS="$CXXFLAGS -pipe"
+    else
+        _res="no"
+    fi
+    rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
+    AC_MSG_RESULT([$_res])
+else
+    AC_MSG_RESULT([no])
+fi
+
 fi # SKIP_COMPILER_CHECKS
 
 dnl ========================================================
@@ -788,7 +834,7 @@ case "$target" in
     AC_DEFINE(XP_UNIX)
     AC_DEFINE(DARWIN)
     AC_DEFINE(HAVE_BSD_FLOCK)
-    CFLAGS="$CFLAGS -Wmost -fno-common -pipe"
+    CFLAGS="$CFLAGS -Wmost -fno-common"
     if echo $OS_TEST | grep -c 86 2>/dev/null; then
         CFLAGS="$CFLAGS -mno-486"
         AC_DEFINE(i386)
@@ -830,7 +876,7 @@ case "$target" in
     AC_DEFINE(XP_UNIX)
     AC_DEFINE(FREEBSD)
     AC_DEFINE(HAVE_BSD_FLOCK)
-    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall"
     MOZ_OBJFORMAT=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
     if test "$MOZ_OBJFORMAT" = "elf"; then
         DLL_SUFFIX=so
@@ -1070,8 +1116,8 @@ case "$target" in
     AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
     AC_DEFINE(LINUX)
     AC_DEFINE(linux)
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     MDCPUCFG_H=_linux.cfg
     PR_MD_CSRCS=linux.c
     MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
@@ -1258,8 +1304,8 @@ case "$target" in
         CFLAGS="$CFLAGS -Hnocopyr"
         CXXFLAGS="$CXXFLAGS -Hnocopyr"
     else
-        CFLAGS="$CFLAGS -fPIC -Wall -pipe"
-        CXXFLAGS="$CXXFLAGS -fPIC -Wall -pipe"
+        CFLAGS="$CFLAGS -fPIC -Wall"
+        CXXFLAGS="$CXXFLAGS -fPIC -Wall"
         DSO_LDOPTS=-G
     fi
     MDCPUCFG_H=_ncr.cfg
@@ -1292,8 +1338,8 @@ mips-nec-sysv*)
     PR_MD_CSRCS=netbsd.c
 
     DSO_CFLAGS='-fPIC -DPIC'
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
 
     if test -z "$OBJECT_FMT"; then
@@ -1334,8 +1380,8 @@ mips-sony-newsos*)
     AC_DEFINE(NEXTSTEP)
     AC_DEFINE(HAVE_BSD_FLOCK)
     AC_DEFINE(_POSIX_SOURCE)
-    CFLAGS="$CFLAGS -Wall -fno-common -pipe -traditional-cpp -posix"
-    CXXFLAGS="$CXXFLAGS -Wall -fno-common -pipe -traditional-cpp -posix"
+    CFLAGS="$CFLAGS -Wall -fno-common -traditional-cpp -posix"
+    CXXFLAGS="$CXXFLAGS -Wall -fno-common -traditional-cpp -posix"
     USE_NSPR_THREADS=1
     DLL_SUFFIX=dylib
     MDCPUCFG_H=_nextstep.cfg
@@ -1362,8 +1408,8 @@ mips-sony-newsos*)
     AC_DEFINE(XP_UNIX)
     AC_DEFINE(OPENBSD)
     AC_DEFINE(HAVE_BSD_FLOCK)
-    CFLAGS="$CFLAGS -ansi -Wall -pipe"
-    CXXFLAGS="$CXXFLAGS -ansi -Wall -pipe"
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
     DLL_SUFFIX=so.1.0
     DSO_CFLAGS=-fPIC
     MDCPUCFG_H=_openbsd.cfg
@@ -1475,7 +1521,6 @@ mips-sony-newsos*)
         AS='$(CC) -x assembler-with-cpp'
         if test "$CPU_ARCH" = "mips"; then
             LD=gld
-            CFLAGS="$CFLAGS -pipe"
         fi
         CFLAGS="$CFLAGS -Wall -Wno-format"
     else