Merge remote-tracking branch 'aneesh/for-upstream' into staging

[mirror_qemu.git] / configure

diff --git a/configure b/configure
index ba99f67dd5bbd227b25fa0a13482bf88ab065f82..e5aedef78800c9cb09a6dc65a6ce40dc9e26681a 100755 (executable)
--- a/configure
+++ b/configure
@@ -116,7 +116,7 @@ audio_drv_list=""
 audio_card_list="ac97 es1370 sb16 hda"
 audio_possible_cards="ac97 es1370 sb16 cs4231a adlib gus hda"
 block_drv_whitelist=""
-host_cc="gcc"
+host_cc="cc"
 libs_softmmu=""
 libs_tools=""
 audio_pt_int=""
@@ -250,7 +250,16 @@ done
 # Using uname is really, really broken.  Once we have the right set of checks
 # we can eliminate its usage altogether.
 
-cc="${CC-${cross_prefix}gcc}"
+# Preferred compiler:
+#  ${CC} (if set)
+#  ${cross_prefix}gcc (if cross-prefix specified)
+#  system compiler
+if test -z "${CC}${cross_prefix}"; then
+  cc="$host_cc"
+else
+  cc="${CC-${cross_prefix}gcc}"
+fi
+
 ar="${AR-${cross_prefix}ar}"
 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 ld="${LD-${cross_prefix}ld}"
@@ -1183,6 +1192,21 @@ for flag in $gcc_flags; do
     fi
 done
 
+# Workaround for http://gcc.gnu.org/PR55489.  Happens with -fPIE/-fPIC and
+# large functions that use global variables.  The bug is in all releases of
+# GCC, but it became particularly acute in 4.6.x and 4.7.x.  It is fixed in
+# 4.7.3 and 4.8.0.  We should be able to delete this at the end of 2013.
+cat > $TMPC << EOF
+#if __GNUC__ == 4 && (__GNUC_MINOR__ == 6 || (__GNUC_MINOR__ == 7 && __GNUC_PATCHLEVEL__ <= 2))
+int main(void) { return 0; }
+#else
+#error No bug in this compiler.
+#endif
+EOF
+if compile_prog "-Werror -fno-gcse" "" ; then
+  TRANSLATE_OPT_CFLAGS=-fno-gcse
+fi
+
 if test "$static" = "yes" ; then
   if test "$pie" = "yes" ; then
     echo "static and pie are mutually incompatible"
@@ -1383,7 +1407,7 @@ fi
 # libseccomp check
 
 if test "$seccomp" != "no" ; then
-    if $pkg_config libseccomp --modversion >/dev/null 2>&1; then
+    if $pkg_config --atleast-version=1.0.0 libseccomp --modversion >/dev/null 2>&1; then
         LIBS=`$pkg_config --libs libseccomp`
        seccomp="yes"
     else
@@ -2103,7 +2127,7 @@ fi
 # pixman support probe
 
 if test "$pixman" = ""; then
-  if $pkg_config pixman-1 > /dev/null 2>&1; then
+  if $pkg_config --atleast-version=0.18.4 pixman-1 > /dev/null 2>&1; then
     pixman="system"
   else
     pixman="internal"
@@ -2114,18 +2138,17 @@ if test "$pixman" = "system"; then
   pixman_libs=`$pkg_config --libs pixman-1 2>/dev/null`
 else
   if test ! -d ${source_path}/pixman/pixman; then
-    echo "ERROR: pixman not present. Your options:"
+    echo "ERROR: pixman not present (or older than 0.18.4). Your options:"
     echo "  (1) Prefered: Install the pixman devel package (any recent"
     echo "      distro should have packages as Xorg needs pixman too)."
     echo "  (2) Fetch the pixman submodule, using:"
     echo "      git submodule update --init pixman"
     exit 1
   fi
-  pixman_cflags="-I${source_path}/pixman/pixman"
-  pixman_libs="-Lpixman/pixman/.libs -lpixman-1"
+  mkdir -p pixman/pixman
+  pixman_cflags="-I\$(SRC_PATH)/pixman/pixman -I\$(BUILD_DIR)/pixman/pixman"
+  pixman_libs="-L\$(BUILD_DIR)/pixman/pixman/.libs -lpixman-1"
 fi
-QEMU_CFLAGS="$QEMU_CFLAGS $pixman_cflags"
-libs_softmmu="$libs_softmmu $pixman_libs"
 
 ##########################################
 # libcap probe
@@ -3137,6 +3160,10 @@ if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ; then
   roms="$roms spapr-rtas"
 fi
 
+# add pixman flags after all config tests are done
+QEMU_CFLAGS="$QEMU_CFLAGS $pixman_cflags"
+libs_softmmu="$libs_softmmu $pixman_libs"
+
 echo "Install prefix    $prefix"
 echo "BIOS directory    `eval echo $qemu_datadir`"
 echo "binary directory  `eval echo $bindir`"
@@ -3646,6 +3673,11 @@ if test "$sparse" = "yes" ; then
   echo "HOST_CC      := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
   echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
 fi
+if test "$cross_prefix" != ""; then
+  echo "AUTOCONF_HOST := --host=${cross_prefix%-}"     >> $config_host_mak
+else
+  echo "AUTOCONF_HOST := "                             >> $config_host_mak
+fi
 echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
 echo "ARLIBS_BEGIN=$arlibs_begin" >> $config_host_mak
 echo "ARLIBS_END=$arlibs_end" >> $config_host_mak
@@ -3654,6 +3686,7 @@ echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
 echo "EXESUF=$EXESUF" >> $config_host_mak
 echo "LIBS_QGA+=$libs_qga" >> $config_host_mak
 echo "POD2MAN=$POD2MAN" >> $config_host_mak
+echo "TRANSLATE_OPT_CFLAGS=$TRANSLATE_OPT_CFLAGS" >> $config_host_mak
 
 # generate list of library paths for linker script
 
@@ -3881,6 +3914,15 @@ upper() {
     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
 }
 
+case "$cpu" in
+  i386|x86_64|ppc)
+    # The TCG interpreter currently does not support ld/st optimization.
+    if test "$tcg_interpreter" = "no" ; then
+        echo "CONFIG_QEMU_LDST_OPTIMIZATION=y" >> $config_target_mak
+    fi
+  ;;
+esac
+
 echo "TARGET_SHORT_ALIGNMENT=$target_short_alignment" >> $config_target_mak
 echo "TARGET_INT_ALIGNMENT=$target_int_alignment" >> $config_target_mak
 echo "TARGET_LONG_ALIGNMENT=$target_long_alignment" >> $config_target_mak
@@ -3942,9 +3984,6 @@ if test "$target_softmmu" = "yes" ; then
   if test "$smartcard_nss" = "yes" ; then
     echo "subdir-$target: subdir-libcacard" >> $config_host_mak
   fi
-  if test "$pixman" = "internal" ; then
-    echo "subdir-$target: subdir-pixman" >> $config_host_mak
-  fi
   case "$target_arch2" in
     i386|x86_64)
       echo "CONFIG_HAVE_CORE_DUMP=y" >> $config_target_mak
@@ -4142,13 +4181,16 @@ echo "QEMU_INCLUDES+=$includes" >> $config_target_mak
 
 done # for target in $targets
 
+if [ "$pixman" = "internal" ]; then
+  echo "config-host.h: subdir-pixman" >> $config_host_mak
+fi
+
 # build tree in object directory in case the source is not in the current directory
 DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32"
 DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas"
 DIRS="$DIRS roms/seabios roms/vgabios"
 DIRS="$DIRS qapi-generated"
 DIRS="$DIRS libcacard libcacard/libcacard libcacard/trace"
-DIRS="$DIRS pixman"
 FILES="Makefile tests/tcg/Makefile qdict-test-data.txt"
 FILES="$FILES tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit"
 FILES="$FILES tests/tcg/lm32/Makefile libcacard/Makefile"