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

[fio.git] / configure

diff --git a/configure b/configure
index cc4bdeb9f5ac3f1de0f657c10dc52c43f56395c9..258c805052fcd5450a481a2aa933363a8ae00445 100755 (executable)
--- a/configure
+++ b/configure
@@ -30,7 +30,8 @@ rm -rf $config_host_mak
 rm -rf $config_host_h
 
 # Default CFLAGS
-EXTFLAGS="-include config-host.h -D_GNU_SOURCE"
+CFLAGS="-D_GNU_SOURCE"
+EXTFLAGS="-include config-host.h"
 
 # Print a helpful header at the top of config.log
 echo "# FIO configure log $(date)" >> config.log
@@ -121,18 +122,36 @@ cpu=""
 
 cc="${CC-${cross_prefix}gcc}"
 
+show_help="no"
+exit_val=0
+
 # parse options
 for opt do
   optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
   case "$opt" in
   --cc=*) CC="$optarg"
   ;;
+  --extra-cflags=*) CFLAGS="$CFLAGS $optarg"
+  ;;
+  --build-32bit-win=*) build_32bit_win="$optarg"
+  ;;
+  --help)
+  show_help="yes"
+  ;;
   *)
   echo "Bad option $opt"
-  exit 1
+  show_help="yes"
+  exit_val=1
   esac
 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 $exit_val
+fi
+
 if check_define __linux__ ; then
   targetos="Linux"
 elif check_define __OpenBSD__ ; then
@@ -167,13 +186,18 @@ SunOS)
 CYGWIN*)
   echo "Forcing known good options on Windows"
   if test -z "$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"
@@ -182,7 +206,13 @@ 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
 esac
 
@@ -252,7 +282,7 @@ case "$cpu" in
   ;;
 esac
 
-if test -z $CC; then
+if test -z "$CC" ; then
   if test "$targetos" = "FreeBSD"; then
     if has clang; then
       CC=clang
@@ -825,6 +855,40 @@ if compile_prog "" "" "RUSAGE_THREAD"; then
 fi
 echo "RUSAGE_THREAD                 $rusage_thread"
 
+##########################################
+# Check whether we have SCHED_IDLE
+sched_idle="no"
+cat > $TMPC << EOF
+#include <sched.h>
+int main(int argc, char **argv)
+{
+  struct sched_param p;
+  return sched_setscheduler(0, SCHED_IDLE, &p);
+}
+EOF
+if compile_prog "" "" "SCHED_IDLE"; then
+  sched_idle="yes"
+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" > $config_host_mak
@@ -928,7 +992,13 @@ fi
 if test "$rusage_thread" = "yes" ; then
   output_sym "CONFIG_RUSAGE_THREAD"
 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" >> $config_host_mak
-echo "EXTFLAGS=$EXTFLAGS" >> $config_host_mak
+echo "EXTFLAGS=$EXTFLAGS $CFLAGS" >> $config_host_mak