Add --build-32bit-win switch to configure --help output.

[fio.git] / configure

diff --git a/configure b/configure
index 995b5df231e9129b9dceace6b867c7fb717c63be..258c805052fcd5450a481a2aa933363a8ae00445 100755 (executable)
--- a/configure
+++ b/configure
@@ -133,6 +133,8 @@ for opt do
   ;;
   --extra-cflags=*) CFLAGS="$CFLAGS $optarg"
   ;;
+  --build-32bit-win=*) build_32bit_win="$optarg"
+  ;;
   --help)
   show_help="yes"
   ;;
@@ -146,6 +148,7 @@ done
 if test "$show_help" = "yes" ; then
   echo "--cc=                  Specify compiler to use"
   echo "--extra-cflags=        Specify extra CFLAGS to pass to compiler"
+  echo "--build-32bit-win=     Specify yes for a 32-bit build on Windows"
   exit $exit_val
 fi
 
@@ -183,13 +186,18 @@ SunOS)
 CYGWIN*)
   echo "Forcing known good options on Windows"
   if test -z "$CC" ; then
-    CC="x86_64-w64-mingw32-gcc"
+    if test ! -z "$build_32bit_win" && test "$build_32bit_win" = "yes"; then
+      CC="i686-w64-mingw32-gcc"
+    else
+      CC="x86_64-w64-mingw32-gcc"
+    fi
   fi
   output_sym "CONFIG_LITTLE_ENDIAN"
-  output_sym "CONFIG_64BIT_LLP64"
-  output_sym "CONFIG_CLOCK_GETTIME"
-  output_sym "CONFIG_CLOCK_MONOTONIC"
-  output_sym "CONFIG_GETTIMEOFDAY"
+  if test ! -z "$build_32bit_win" && test "$build_32bit_win" = "yes"; then
+    output_sym "CONFIG_32BIT"
+  else
+    output_sym "CONFIG_64BIT_LLP64"
+  fi
   output_sym "CONFIG_FADVISE"
   output_sym "CONFIG_SOCKLEN_T"
   output_sym "CONFIG_POSIX_FALLOCATE"
@@ -198,9 +206,11 @@ CYGWIN*)
   output_sym "CONFIG_RUSAGE_THREAD"
   output_sym "CONFIG_WINDOWSAIO"
   output_sym "CONFIG_FDATASYNC"
+  output_sym "CONFIG_CLOCK_MONOTONIC"
   output_sym "CONFIG_GETTIMEOFDAY"
   output_sym "CONFIG_CLOCK_GETTIME"
   output_sym "CONFIG_SCHED_IDLE"
+  output_sym "CONFIG_TCP_NODELAY"
   echo "CC=$CC" >> $config_host_mak
   echo "EXTFLAGS=$CFLAGS -include config-host.h -D_GNU_SOURCE" >> $config_host_mak
   exit 0
@@ -861,6 +871,24 @@ if compile_prog "" "" "SCHED_IDLE"; then
 fi
 echo "SCHED_IDLE                    $sched_idle"
 
+##########################################
+# Check whether we have TCP_NODELAY
+tcp_nodelay="no"
+cat > $TMPC << EOF
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+int main(int argc, char **argv)
+{
+  return getsockopt(0, 0, TCP_NODELAY, NULL, NULL);
+}
+EOF
+if compile_prog "" "" "TCP_NODELAY"; then
+  tcp_nodelay="yes"
+fi
+echo "TCP_NODELAY                   $tcp_nodelay"
+
 #############################################################################
 
 echo "# Automatically generated by configure - do not modify" > $config_host_mak
@@ -967,6 +995,9 @@ fi
 if test "$sched_idle" = "yes" ; then
   output_sym "CONFIG_SCHED_IDLE"
 fi
+if test "$tcp_nodelay" = "yes" ; then
+  output_sym "CONFIG_TCP_NODELAY"
+fi
 
 echo "LIBS+=$LIBS" >> $config_host_mak
 echo "CC=$cc" >> $config_host_mak