fi
cross_prefix=${cross_prefix-${CROSS_COMPILE}}
-cc="${CC-${cross_prefix}gcc}"
+# Preferred compiler (can be overriden later after we know the platform):
+# ${CC} (if set)
+# ${cross_prefix}gcc (if cross-prefix specified)
+# gcc if available
+# clang if available
+if test -z "${CC}${cross_prefix}"; then
+ if has gcc; then
+ cc=gcc
+ elif has clang; then
+ cc=clang
+ fi
+else
+ cc="${CC-${cross_prefix}gcc}"
+fi
if check_define __ANDROID__ ; then
targetos="Android"
CYGWIN*)
# We still force some options, so keep this message here.
echo "Forcing some known good options on Windows"
- if test -z "$CC" ; then
+ if test -z "${CC}${cross_prefix}"; then
if test ! -z "$build_32bit_win" && test "$build_32bit_win" = "yes"; then
- CC="i686-w64-mingw32-gcc"
+ cc="i686-w64-mingw32-gcc"
if test -e "../zlib/contrib/vstudio/vc14/x86/ZlibStatReleaseWithoutAsm/zlibstat.lib"; then
echo "Building with zlib support"
output_sym "CONFIG_ZLIB"
echo "LIBS=../zlib/contrib/vstudio/vc14/x86/ZlibStatReleaseWithoutAsm/zlibstat.lib" >> $config_host_mak
fi
else
- CC="x86_64-w64-mingw32-gcc"
+ cc="x86_64-w64-mingw32-gcc"
if test -e "../zlib/contrib/vstudio/vc14/x64/ZlibStatReleaseWithoutAsm/zlibstat.lib"; then
echo "Building with zlib support"
output_sym "CONFIG_ZLIB"
# Flags below are still necessary mostly for MinGW.
socklen_t="yes"
sfaa="yes"
+ sync_sync="yes"
+ cmp_swap="yes"
rusage_thread="yes"
fdatasync="yes"
clock_gettime="yes" # clock_monotonic probe has dependency on this
tls_thread="yes"
static_assert="yes"
ipv6="yes"
- echo "CC=$CC" >> $config_host_mak
+ mkdir_two="no"
echo "BUILD_CFLAGS=$CFLAGS -I../zlib -include config-host.h -D_GNU_SOURCE" >> $config_host_mak
;;
esac
+# Now we know the target platform we can have another guess at the preferred
+# compiler when it wasn't explictly set
+if test -z "${CC}${cross_prefix}"; then
+ if test "$targetos" = "FreeBSD" || test "$targetos" = "Darwin"; then
+ if has clang; then
+ cc=clang
+ fi
+ fi
+fi
+if test -z "$cc"; then
+ echo "configure: failed to find compiler"
+ exit 1
+fi
+
if test ! -z "$cpu" ; then
# command line argument
:
;;
esac
-if test -z "$CC" ; then
- if test "$targetos" = "FreeBSD"; then
- if has clang; then
- CC=clang
- else
- CC=gcc
- fi
- fi
-fi
-
-cc="${CC-${cross_prefix}gcc}"
-
##########################################
# check cross compile
fi
print_config "__sync_fetch_and_add" "$sfaa"
+##########################################
+# __sync_synchronize() test
+if test "$sync_sync" != "yes" ; then
+ sync_sync="no"
+fi
+cat > $TMPC << EOF
+#include <inttypes.h>
+
+int main(int argc, char **argv)
+{
+ __sync_synchronize();
+ return 0;
+}
+EOF
+if compile_prog "" "" "__sync_synchronize()" ; then
+ sync_sync="yes"
+fi
+print_config "__sync_synchronize" "$sync_sync"
+
+##########################################
+# __sync_val_compare_and_swap() test
+if test "$cmp_swap" != "yes" ; then
+ cmp_swap="no"
+fi
+cat > $TMPC << EOF
+#include <inttypes.h>
+
+int main(int argc, char **argv)
+{
+ int x = 0;
+ return __sync_val_compare_and_swap(&x, 1, 2);
+}
+EOF
+if compile_prog "" "" "__sync_val_compare_and_swap()" ; then
+ cmp_swap="yes"
+fi
+print_config "__sync_val_compare_and_swap" "$cmp_swap"
+
##########################################
# libverbs probe
if test "$libverbs" != "yes" ; then
fi
print_config "cuda" "$cuda"
+##########################################
+# mkdir() probe. mingw apparently has a one-argument mkdir :/
+mkdir_two="no"
+cat > $TMPC << EOF
+#include <sys/stat.h>
+#include <sys/types.h>
+int main(int argc, char **argv)
+{
+ return mkdir("/tmp/bla", 0600);
+}
+EOF
+if compile_prog "" "" "mkdir(a, b)"; then
+ mkdir_two="yes"
+fi
+print_config "mkdir(a, b)" "$mkdir_two"
+
#############################################################################
if test "$wordsize" = "64" ; then
if test "$sfaa" = "yes" ; then
output_sym "CONFIG_SFAA"
fi
+if test "$sync_sync" = "yes" ; then
+ output_sym "CONFIG_SYNC_SYNC"
+fi
+if test "$cmp_swap" = "yes" ; then
+ output_sym "CONFIG_CMP_SWAP"
+fi
if test "$libverbs" = "yes" -a "$rdmacm" = "yes" ; then
output_sym "CONFIG_RDMA"
fi
if test "$cuda" = "yes" ; then
output_sym "CONFIG_CUDA"
fi
+if test "$mkdir_two" = "yes" ; then
+ output_sym "CONFIG_HAVE_MKDIR_TWO"
+fi
echo "LIBS+=$LIBS" >> $config_host_mak
echo "GFIO_LIBS+=$GFIO_LIBS" >> $config_host_mak