clover: Add --with-clang-libdir option and verify CLANG_RESOURCE_DIR
$CLANG_RESOURCE_DIR is the directory that contains all resources
needed by clang to compile programs. When clover uses clang to
compile kernels it needs to specify a resource dir, so that clang
can find its internal headers (e.g. stddef.h).
clang defines $CLANG_RESOURCE_DIR as $CLANG_LIBDIR/clang/$CLANG_VERSION
This patch adds the --with-clang-libdir option in order to accommodate
clang intalls to non-standard locations, and it also adds a check
to the configure script to verify that $CLANG_RESOURCE_DIR/include
contains the necessary header files.
diff --git a/configure.ac b/configure.ac
index b78eb15..46265a2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1610,6 +1610,12 @@
[LIBCLC_PATH="$withval"],
[LIBCLC_PATH=""])
+AC_ARG_WITH([clang-libdir],
+ [AS_HELP_STRING([--with-clang-libdir],
+ [Path to Clang libraries @<:@default=llvm-config --libdir@:>@])],
+ [CLANG_LIBDIR="$withval"],
+ [CLANG_LIBDIR=""])
+
AC_SUBST([LIBCLC_PATH])
if test "x$enable_opencl" = xyes; then
@@ -1696,6 +1702,7 @@
AC_SUBST([LLVM_LDFLAGS])
AC_SUBST([LLVM_INCLUDEDIR])
AC_SUBST([LLVM_VERSION])
+AC_SUBST([CLANG_RESOURCE_DIR])
case "x$enable_opengl$enable_gles1$enable_gles2" in
x*yes*)
@@ -1870,6 +1877,16 @@
LLVM_LIBDIR=`$LLVM_CONFIG --libdir`
DEFINES="${DEFINES} -DHAVE_LLVM=`echo $LLVM_VERSION | sed -e 's/\([[0-9]]\)\.\([[0-9]]\)/0x0\10\2/g'`"
MESA_LLVM=1
+
+ dnl Check for Clang interanl headers
+ if test "x$enable_opencl" = xyes; then
+ if test "x$CLANG_LIBDIR" = x; then
+ CLANG_LIBDIR=${LLVM_LIBDIR}
+ fi
+ CLANG_RESOURCE_DIR=$CLANG_LIBDIR/clang/${LLVM_VERSION}
+ AC_CHECK_FILE("$CLANG_RESOURCE_DIR/include/stddef.h",,
+ AC_MSG_ERROR([Could not find clang internal header stddef.h in $CLANG_RESOURCE_DIR Use --with-clang-libdir to specify the correct path to the clang libraries.]))
+ fi
else
MESA_LLVM=0
fi