clover: Don't use llvm's global context
[mesa.git] / configure.ac
index 99a761a42fe690b00bd5dc6100c0dd5ce351abbd..8f861548f808eca10bb6b06900c2915ff78fe868 100644 (file)
@@ -149,7 +149,7 @@ _SAVE_LDFLAGS="$LDFLAGS"
 _SAVE_CPPFLAGS="$CPPFLAGS"
 
 dnl Compiler macros
-DEFINES=""
+DEFINES="-DUSE_EXTERNAL_DXTN_LIB=1"
 AC_SUBST([DEFINES])
 case "$host_os" in
 linux*|*-gnu*|gnu*)
@@ -315,6 +315,22 @@ if test "x$enable_debug" = xyes; then
     fi
 fi
 
+dnl
+dnl Check if linker supports -Bsymbolic
+dnl
+save_LDFLAGS=$LDFLAGS
+LDFLAGS="$LDFLAGS -Wl,-Bsymbolic"
+AC_MSG_CHECKING([if ld supports -Bsymbolic])
+AC_LINK_IFELSE(
+    [AC_LANG_SOURCE([int main() { return 0;}])],
+    [AC_MSG_RESULT([yes])
+        BSYMBOLIC="-Wl,-Bsymbolic";],
+    [AC_MSG_RESULT([no])
+        BSYMBOLIC="";])
+LDFLAGS=$save_LDFLAGS
+
+AC_SUBST([BSYMBOLIC])
+
 dnl
 dnl Check if linker supports garbage collection
 dnl
@@ -331,6 +347,41 @@ LDFLAGS=$save_LDFLAGS
 
 AC_SUBST([GC_SECTIONS])
 
+dnl
+dnl OpenBSD does not have DT_NEEDED entries for libc by design
+dnl so when these flags are passed to ld via libtool the checks will fail
+dnl
+case "$host_os" in
+openbsd* | darwin* )
+    LD_NO_UNDEFINED="" ;;
+*)
+    LD_NO_UNDEFINED="-Wl,--no-undefined" ;;
+esac
+
+AC_SUBST([LD_NO_UNDEFINED])
+
+dnl
+dnl Check if linker supports version scripts
+dnl
+AC_MSG_CHECKING([if the linker supports version-scripts])
+save_LDFLAGS=$LDFLAGS
+LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
+cat > conftest.map <<EOF
+VERSION_1 {
+     global:
+         main;
+
+     local:
+         *;
+};
+EOF
+AC_LINK_IFELSE(
+    [AC_LANG_SOURCE([int main() { return 0;}])],
+    [have_ld_version_script=yes;AC_MSG_RESULT(yes)],
+    [have_ld_version_script=no; AC_MSG_RESULT(no)])
+LDFLAGS=$save_LDFLAGS
+AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
+
 dnl
 dnl compatibility symlinks
 dnl
@@ -492,7 +543,7 @@ darwin*|mingw*)
 *)
     AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
                    [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
-                                 [AC_MSG_ERROR([Couldn't find clock_gettime])])])
+                                 [AC_MSG_ERROR([Could not find clock_gettime])])])
     AC_SUBST([CLOCK_LIB])
     ;;
 esac
@@ -501,7 +552,13 @@ dnl See if posix_memalign is available
 AC_CHECK_FUNC([posix_memalign], [DEFINES="$DEFINES -DHAVE_POSIX_MEMALIGN"])
 
 dnl Check for pthreads
-AX_PTHREAD
+case "$host_os" in
+mingw*)
+    ;;
+*)
+    AX_PTHREAD
+    ;;
+esac
 dnl AX_PTHREADS leaves PTHREAD_LIBS empty for gcc and sets PTHREAD_CFLAGS
 dnl to -pthread, which causes problems if we need -lpthread to appear in
 dnl pkgconfig files.
@@ -735,8 +792,22 @@ fi
 
 AM_CONDITIONAL(HAVE_DRI_GLX, test "x$enable_glx" = xyes -a \
                                   "x$enable_dri" = xyes)
-AM_CONDITIONAL(HAVE_DRI, test "x$enable_dri" = xyes)
-AM_CONDITIONAL(HAVE_DRI3, test "x$enable_dri3" = xyes)
+
+# Select which platform-dependent DRI code gets built
+case "$host_os" in
+darwin*)
+    dri_platform='apple' ;;
+gnu*|mingw*|cygwin*)
+    dri_platform='none' ;;
+*)
+    dri_platform='drm' ;;
+esac
+
+AM_CONDITIONAL(HAVE_DRICOMMON, test "x$enable_dri" = xyes )
+AM_CONDITIONAL(HAVE_DRISW, test "x$enable_dri" = xyes )
+AM_CONDITIONAL(HAVE_DRI2, test "x$enable_dri" = xyes && test "x$dri_platform" = xdrm )
+AM_CONDITIONAL(HAVE_DRI3, test "x$enable_dri3" = xyes && test "x$dri_platform" = xdrm )
+AM_CONDITIONAL(HAVE_APPLEDRI, test "x$enable_dri" = xyes && test "x$dri_platform" = xapple )
 
 AC_ARG_ENABLE([shared-glapi],
     [AS_HELP_STRING([--enable-shared-glapi],
@@ -805,14 +876,21 @@ fi
 
 case "$host_os" in
 linux*)
-    need_libudev=yes ;;
+    need_pci_id=yes ;;
 *)
-    need_libudev=no ;;
+    need_pci_id=no ;;
 esac
 
 PKG_CHECK_MODULES([LIBUDEV], [libudev >= $LIBUDEV_REQUIRED],
                   have_libudev=yes, have_libudev=no)
 
+AC_ARG_ENABLE([sysfs],
+    [AS_HELP_STRING([--enable-sysfs],
+        [enable /sys PCI identification @<:@default=disabled@:>@])],
+    [have_sysfs="$enableval"],
+    [have_sysfs=no]
+)
+
 if test "x$enable_dri" = xyes; then
     if test "$enable_static" = yes; then
         AC_MSG_ERROR([Cannot use static libraries for DRI drivers])
@@ -824,26 +902,12 @@ if test "x$enable_dri" = xyes; then
     fi
 fi
 
-dnl Direct rendering or just indirect rendering
-case "$host_os" in
-gnu*)
-    dnl Disable by default on GNU/Hurd
-    driglx_direct_default="no"
-    ;;
-cygwin*)
-    dnl Disable by default on cygwin
-    driglx_direct_default="no"
-    ;;
-*)
-    driglx_direct_default="yes"
-    ;;
-esac
 AC_ARG_ENABLE([driglx-direct],
     [AS_HELP_STRING([--disable-driglx-direct],
         [disable direct rendering in GLX and EGL for DRI \
             @<:@default=auto@:>@])],
     [driglx_direct="$enableval"],
-    [driglx_direct="$driglx_direct_default"])
+    [driglx_direct="yes"])
 
 dnl
 dnl libGL configuration per driver
@@ -861,23 +925,35 @@ xyesyes)
 xyesno)
     # DRI-based GLX
     PKG_CHECK_MODULES([GLPROTO], [glproto >= $GLPROTO_REQUIRED])
-    if test x"$driglx_direct" = xyes; then
-        if test "x$have_libdrm" != xyes; then
-            AC_MSG_ERROR([Direct rendering requires libdrm >= $LIBDRM_REQUIRED])
-        fi
-        PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED])
-        GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV libdrm >= $LIBDRM_REQUIRED"
-        if test x"$enable_dri3" = xyes; then
-            PKG_CHECK_MODULES([DRI3PROTO], [dri3proto >= $DRI3PROTO_REQUIRED])
-            PKG_CHECK_MODULES([PRESENTPROTO], [presentproto >= $PRESENTPROTO_REQUIRED])
-        fi
-    fi
 
     # find the DRI deps for libGL
-    dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= $XCBGLX_REQUIRED xcb-dri2 >= $XCBDRI2_REQUIRED"
+    dri_modules="x11 xext xdamage xfixes x11-xcb xcb-glx >= $XCBGLX_REQUIRED"
+
+    if test x"$driglx_direct" = xyes; then
+        if test x"$dri_platform" = xdrm ; then
+            DEFINES="$DEFINES -DGLX_USE_DRM"
+            if test "x$have_libdrm" != xyes; then
+               AC_MSG_ERROR([Direct rendering requires libdrm >= $LIBDRM_REQUIRED])
+            fi
 
-    if test x"$enable_dri3" = xyes; then
-        dri_modules="$dri_modules xcb-dri3 xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED"
+            PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED])
+            GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV libdrm >= $LIBDRM_REQUIRED"
+            if test x"$enable_dri3" = xyes; then
+               PKG_CHECK_MODULES([DRI3PROTO], [dri3proto >= $DRI3PROTO_REQUIRED])
+               PKG_CHECK_MODULES([PRESENTPROTO], [presentproto >= $PRESENTPROTO_REQUIRED])
+            fi
+
+            if test x"$enable_dri" = xyes; then
+               dri_modules="$dri_modules xcb-dri2 >= $XCBDRI2_REQUIRED"
+            fi
+
+            if test x"$enable_dri3" = xyes; then
+               dri_modules="$dri_modules xcb-dri3 xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED"
+            fi
+        fi
+        if test x"$dri_platform" = xapple ; then
+            DEFINES="$DEFINES -DGLX_USE_APPLEGL"
+        fi
     fi
 
     # add xf86vidmode if available
@@ -897,8 +973,15 @@ xyesno)
     ;;
 esac
 
+have_pci_id=no
 if test "$have_libudev" = yes; then
     DEFINES="$DEFINES -DHAVE_LIBUDEV"
+    have_pci_id=yes
+fi
+
+if test "$have_sysfs" = yes; then
+    DEFINES="$DEFINES -DHAVE_SYSFS"
+    have_pci_id=yes
 fi
 
 # This is outside the case (above) so that it is invoked even for non-GLX
@@ -994,14 +1077,13 @@ if test "x$enable_dri" = xyes; then
     # Platform specific settings and drivers to build
     case "$host_os" in
     linux*)
-        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1"
         DEFINES="$DEFINES -DHAVE_ALIAS"
         if test "x$enable_dri3" = xyes; then
             DEFINES="$DEFINES -DHAVE_DRI3"
         fi
 
-        if test "x$have_libudev" != xyes; then
-            AC_MSG_ERROR([libudev-dev required for building DRI])
+        if test "x$have_pci_id" != xyes; then
+            AC_MSG_ERROR([libudev-dev or sysfs required for building DRI])
         fi
 
         case "$host_cpu" in
@@ -1014,18 +1096,19 @@ if test "x$enable_dri" = xyes; then
         esac
         ;;
     *freebsd* | dragonfly* | *netbsd* | openbsd*)
-        DEFINES="$DEFINES -DHAVE_PTHREAD -DUSE_EXTERNAL_DXTN_LIB=1"
+        DEFINES="$DEFINES -DHAVE_PTHREAD"
         DEFINES="$DEFINES -DHAVE_ALIAS"
         ;;
     gnu*)
-        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1"
         DEFINES="$DEFINES -DHAVE_ALIAS"
         ;;
-    solaris*)
-        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1"
-        ;;
     cygwin*)
-        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1"
+        if test "x$with_dri_drivers" = "xyes"; then
+            with_dri_drivers="swrast"
+        fi
+        ;;
+    darwin*)
+        DEFINES="$DEFINES -DGLX_ALIAS_UNSUPPORTED"
         if test "x$with_dri_drivers" = "xyes"; then
             with_dri_drivers="swrast"
         fi
@@ -1170,8 +1253,8 @@ if test "x$enable_gbm" = xauto; then
     esac
 fi
 if test "x$enable_gbm" = xyes; then
-    if test "x$need_libudev$have_libudev" = xyesno; then
-        AC_MSG_ERROR([gbm requires udev >= $LIBUDEV_REQUIRED])
+    if test "x$need_pci_id$have_pci_id" = xyesno; then
+        AC_MSG_ERROR([gbm requires udev >= $LIBUDEV_REQUIRED or sysfs])
     fi
 
     if test "x$enable_dri" = xyes; then
@@ -1189,7 +1272,7 @@ if test "x$enable_gbm" = xyes; then
     fi
 fi
 AM_CONDITIONAL(HAVE_GBM, test "x$enable_gbm" = xyes)
-if test "x$need_libudev" = xyes; then
+if test "x$need_pci_id$have_libudev" = xyesyes; then
     GBM_PC_REQ_PRIV="libudev >= $LIBUDEV_REQUIRED"
 else
     GBM_PC_REQ_PRIV=""
@@ -1273,7 +1356,7 @@ if test "x$enable_xa" = xyes; then
     if test "x$with_gallium_drivers" = xswrast; then
        AC_MSG_ERROR([
           Building xa requires at least one non swrast gallium driver.
-          If you are looking to use libxatracker.so with vmware's virtual gpu,
+          If you are looking to use libxatracker.so with the VMware driver,
           make sure to include svga in the gallium drivers list, apart from
           enabling XA.
           Example: ./configure --enable-xa --with-gallium-drivers=svga...])
@@ -1310,7 +1393,7 @@ AM_CONDITIONAL(HAVE_OPENVG, test "x$enable_openvg" = xyes)
 dnl
 dnl Gallium G3DVL configuration
 dnl
-if test -n "$with_gallium_drivers" && ! echo "$with_gallium_drivers" | grep -q 'swrast'; then
+if test -n "$with_gallium_drivers" -a "x$with_gallium_drivers" != xswrast; then
     if test "x$enable_xvmc" = xauto; then
        PKG_CHECK_EXISTS([xvmc], [enable_xvmc=yes], [enable_xvmc=no])
     fi
@@ -1478,9 +1561,9 @@ for plat in $egl_platforms; do
                ;;
        esac
 
-        case "$plat$need_libudev$have_libudev" in
+        case "$plat$need_pci_id$have_pci_id" in
                 waylandyesno|drmyesno)
-                    AC_MSG_ERROR([cannot build $plat platform without udev >= $LIBUDEV_REQUIRED]) ;;
+                    AC_MSG_ERROR([cannot build $plat platform without udev >= $LIBUDEV_REQUIRED or sysfs]) ;;
         esac
 done
 
@@ -1578,7 +1661,8 @@ strip_unwanted_llvm_flags() {
        -e 's/-fno-exceptions\>//g' \
        -e 's/-fomit-frame-pointer\>//g' \
        -e 's/-fvisibility-inlines-hidden\>//g' \
-       -e 's/-fPIC\>//g'
+       -e 's/-fPIC\>//g' \
+       -e 's/-fstack-protector-strong\>//g'
 }
 
 
@@ -1624,6 +1708,12 @@ if test "x$enable_gallium_llvm" = xyes; then
             LLVM_VERSION_INT=`echo $LLVM_VERSION | sed -e 's/\([[0-9]]\)\.\([[0-9]]\)/\10\2/g'`
         fi
 
+        LLVM_REQUIRED_VERSION_MAJOR="3"
+        LLVM_REQUIRED_VERSION_MINOR="1"
+        if test "$LLVM_VERSION_INT" -lt "${LLVM_REQUIRED_VERSION_MAJOR}0${LLVM_REQUIRED_VERSION_MINOR}"; then
+            AC_MSG_ERROR([LLVM $LLVM_REQUIRED_VERSION_MAJOR.$LLVM_REQUIRED_VERSION_MINOR or newer is required])
+        fi
+
         LLVM_COMPONENTS="engine bitwriter"
         if $LLVM_CONFIG --components | grep -qw 'mcjit'; then
             LLVM_COMPONENTS="${LLVM_COMPONENTS} mcjit"
@@ -1639,6 +1729,13 @@ if test "x$enable_gallium_llvm" = xyes; then
             if $LLVM_CONFIG --components | grep -qw 'option'; then
                 LLVM_COMPONENTS="${LLVM_COMPONENTS} option"
             fi
+            # Current OpenCL/Clover and LLVM 3.5 require ObjCARCOpts and ProfileData
+            if $LLVM_CONFIG --components | grep -qw 'objcarcopts'; then
+                LLVM_COMPONENTS="${LLVM_COMPONENTS} objcarcopts"
+            fi
+            if $LLVM_CONFIG --components | grep -qw 'profiledata'; then
+                LLVM_COMPONENTS="${LLVM_COMPONENTS} profiledata"
+            fi
         fi
         DEFINES="${DEFINES} -DHAVE_LLVM=0x0$LLVM_VERSION_INT -DLLVM_VERSION_PATCH=$LLVM_VERSION_PATCH"
         MESA_LLVM=1
@@ -1659,6 +1756,10 @@ if test "x$enable_gallium_llvm" = xyes; then
 else
     MESA_LLVM=0
     LLVM_VERSION_INT=0
+
+    if test "x$enable_opencl" = xyes; then
+        AC_MSG_ERROR([cannot enable OpenCL without LLVM])
+    fi
 fi
 
 dnl Directory for XVMC libs
@@ -1747,8 +1848,8 @@ gallium_require_llvm() {
 
 gallium_require_drm_loader() {
     if test "x$enable_gallium_loader" = xyes; then
-        if test "x$need_libudev$have_libudev" = xyesno; then
-            AC_MSG_ERROR([Gallium drm loader requires libudev >= $LIBUDEV_REQUIRED])
+        if test "x$need_pci_id$have_pci_id" = xyesno; then
+            AC_MSG_ERROR([Gallium drm loader requires libudev >= $LIBUDEV_REQUIRED or sysfs])
         fi
         if test "x$have_libdrm" != xyes; then
             AC_MSG_ERROR([Gallium drm loader requires libdrm >= $LIBDRM_REQUIRED])
@@ -1812,11 +1913,7 @@ if test -n "$with_gallium_drivers"; then
             HAVE_GALLIUM_I915=yes
             PKG_CHECK_MODULES([INTEL], [libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
             gallium_require_drm_loader
-            GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i915 softpipe"
-            if test "x$MESA_LLVM" = x1; then
-                GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS llvmpipe"
-            fi
-            GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS i915/sw"
+            GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i915"
             gallium_check_st "i915/drm" "dri-i915"
             DRICOMMON_NEED_LIBDRM=yes
             ;;
@@ -1948,18 +2045,22 @@ AM_CONDITIONAL(HAVE_GALLIUM_ILO, test "x$HAVE_GALLIUM_ILO" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_R300, test "x$HAVE_GALLIUM_R300" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_R600, test "x$HAVE_GALLIUM_R600" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_RADEONSI, test "x$HAVE_GALLIUM_RADEONSI" = xyes)
+AM_CONDITIONAL(HAVE_GALLIUM_RADEON_COMMON, test "x$HAVE_GALLIUM_R600" = xyes -o \
+                                                "x$HAVE_GALLIUM_RADEONSI" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_NOUVEAU, test "x$HAVE_GALLIUM_NOUVEAU" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_FREEDRENO, test "x$HAVE_GALLIUM_FREEDRENO" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_SOFTPIPE, test "x$HAVE_GALLIUM_SOFTPIPE" = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_LLVMPIPE, test "x$HAVE_GALLIUM_LLVMPIPE" = xyes)
 
 AM_CONDITIONAL(NEED_GALLIUM_SOFTPIPE_DRIVER, test "x$HAVE_GALLIUM_SVGA" = xyes -o \
-                                                  "x$HAVE_GALLIUM_I915" = xyes -o \
                                                   "x$HAVE_GALLIUM_SOFTPIPE" = xyes)
-AM_CONDITIONAL(NEED_GALLIUM_LLVMPIPE_DRIVER, test "x$HAVE_GALLIUM_I915" = xyes -o \
-                                                  "x$HAVE_GALLIUM_SOFTPIPE" = xyes \
+AM_CONDITIONAL(NEED_GALLIUM_LLVMPIPE_DRIVER, test "x$HAVE_GALLIUM_SOFTPIPE" = xyes \
                                                   && test "x$MESA_LLVM" = x1)
 
+# Enable static gallium targets for now.
+# Do not touch this unless you know what you are doing.
+AM_CONDITIONAL(HAVE_GALLIUM_STATIC_TARGETS, test "xyes" = xyes)
+
 # NOTE: anything using xcb or other client side libs ends up in separate
 #       _CLIENT variables.  The pipe loader is built in two variants,
 #       one that is standalone and does not link any x client libs (for
@@ -2110,30 +2211,29 @@ AC_CONFIG_FILES([Makefile
                src/gallium/targets/dri-vmwgfx/Makefile
                src/gallium/targets/egl-static/Makefile
                src/gallium/targets/gbm/Makefile
-               src/gallium/targets/opencl/Makefile
-               src/gallium/targets/xa/Makefile
-               src/gallium/targets/xa/xatracker.pc
+               src/gallium/targets/libgl-xlib/Makefile
                src/gallium/targets/omx-nouveau/Makefile
+               src/gallium/targets/opencl/Makefile
                src/gallium/targets/osmesa/Makefile
                src/gallium/targets/osmesa/osmesa.pc
                src/gallium/targets/pipe-loader/Makefile
-               src/gallium/targets/radeonsi/dri/Makefile
-               src/gallium/targets/radeonsi/omx/Makefile
-               src/gallium/targets/radeonsi/vdpau/Makefile
                src/gallium/targets/r300/dri/Makefile
                src/gallium/targets/r600/dri/Makefile
                src/gallium/targets/r600/omx/Makefile
                src/gallium/targets/r600/vdpau/Makefile
                src/gallium/targets/r600/xvmc/Makefile
-               src/gallium/targets/libgl-xlib/Makefile
+               src/gallium/targets/radeonsi/dri/Makefile
+               src/gallium/targets/radeonsi/omx/Makefile
+               src/gallium/targets/radeonsi/vdpau/Makefile
                src/gallium/targets/vdpau-nouveau/Makefile
+               src/gallium/targets/xa/Makefile
+               src/gallium/targets/xa/xatracker.pc
                src/gallium/targets/xvmc-nouveau/Makefile
                src/gallium/tests/trivial/Makefile
                src/gallium/tests/unit/Makefile
                src/gallium/winsys/Makefile
                src/gallium/winsys/freedreno/drm/Makefile
                src/gallium/winsys/i915/drm/Makefile
-               src/gallium/winsys/i915/sw/Makefile
                src/gallium/winsys/intel/drm/Makefile
                src/gallium/winsys/nouveau/drm/Makefile
                src/gallium/winsys/radeon/drm/Makefile
@@ -2148,6 +2248,7 @@ AC_CONFIG_FILES([Makefile
                src/gbm/main/gbm.pc
                src/glsl/Makefile
                src/glx/Makefile
+               src/glx/apple/Makefile
                src/glx/tests/Makefile
                src/gtest/Makefile
                src/loader/Makefile
@@ -2217,7 +2318,9 @@ xnono)
         ;;
 esac
 
+echo ""
 if test "x$enable_dri" != xno; then
+        echo "        DRI platform:    $dri_platform"
         if test -z "$DRI_DIRS"; then
             echo "        DRI drivers:     no"
         else