-KCOMPAT_PATH=
-AC_ARG_WITH(kcompat, [ --with-kcompat path Path to userspace kcompat source], [
- AC_CHECK_FILE(["$withval/kcompat.h"], KCOMPAT_PATH="$withval", [
- AC_MSG_ERROR([Cannot find kcompat.h in kcompat directory])
- ])
-])
-if test -n "${KCOMPAT_PATH}" ; then
- CPPFLAGS="-I$KCOMPAT_PATH/ $CPPFLAGS"
- AC_SUBST(CPPFLAGS)
-fi
-AC_CHECK_HEADER([kcompat.h], , AC_MSG_ERROR([Must specify kcompat path.]))
-AC_SUBST(KCOMPAT_PATH)
-
-URCU_LIB=
-AC_CHECK_HEADER([urcu.h], [
- AC_CHECK_LIB(urcu, synchronize_rcu, [
- URCU_PATH=
- URCU_LIB="-lurcu"
- ])
-])
-AC_ARG_WITH(urcu, [ --with-urcu path Path to userspace RCU source], [
- AC_CHECK_FILE(["$withval/urcu.h"], [
- URCU_PATH="$withval"
- URCU_LIB="/liburcu.la" ],
- AC_MSG_ERROR([Cannot find urcu.h in urcu directory]))
+CFLAGS="-Wall $CFLAGS"
+
+# URCU
+
+# urcu - check if we just find the headers it out of the box.
+AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CFLAGS]=-Idir to specify their location.
+This error can also occur when the liburcu package's configure script has not been run.])])
+
+# urcu - check that URCU lib is available to compilation
+AC_CHECK_LIB([urcu-bp], [synchronize_rcu], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
+
+# urcu - check that URCU lib is at least version 0.5
+AC_CHECK_DECL([cds_list_add(0, 0)], [], [AC_MSG_ERROR([liburcu 0.5 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])], [[#include <urcu/list.h>]])
+
+
+# Check for various supplementary host information (beyond the
+# triplet) which might affect the library format choices. E.g., we
+# can be building with `i686-unknown-linux-gnu-gcc -m64'
+
+case "${host}" in
+changequote(,)dnl
+ i[34567]86-*-linux*)
+changequote([,])dnl
+ AC_CACHE_CHECK([if building for x86-64], [ust_cv_i386_is_x86_64],
+ [save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $CFLAGS"
+ AC_EGREP_CPP([got it], [
+#if __x86_64__
+got it
+#endif
+ ], [ust_cv_i386_is_x86_64=yes],
+ [ust_cv_i386_is_x86_64=no])
+ CPPFLAGS="$save_CPPFLAGS"])
+ ;;
+esac
+
+AC_MSG_CHECKING([library format for the host system])
+case $host_cpu in
+changequote(,)dnl
+ i[3456]86)
+changequote([,])dnl
+ if test "$ust_cv_i386_is_x86_64" = yes ; then
+ LIBFORMAT="elf64-x86-64"
+ else
+ LIBFORMAT="elf32-i386"
+ fi
+ ;;
+ x86_64) LIBFORMAT="elf64-x86-64" ;;
+ powerpc) LIBFORMAT="elf32-powerpc" ;;
+ ppc64) LIBFORMAT="elf64-powerpc" ;;
+ s390) LIBFORMAT="elf32-s390" ;;
+ s390x) LIBFORMAT="elf64-s390" ;;
+ arm) LIBFORMAT="elf32-littlearm" ;;
+ *) AC_MSG_ERROR([unable to detect library format (unsupported architecture ($host_cpu)?)]) ;;
+esac
+AC_SUBST(LIBFORMAT)
+AC_MSG_RESULT($LIBFORMAT)
+
+AC_CONFIG_FILES([
+ Makefile
+ doc/Makefile
+ doc/man/Makefile
+ doc/info/Makefile
+ include/Makefile
+ libust/Makefile
+ tests/Makefile
+ tests/hello/Makefile
+ tests/hello2/Makefile
+ tests/basic/Makefile
+ tests/basic_long/Makefile
+ tests/fork/Makefile
+ tests/simple_include/Makefile
+ tests/snprintf/Makefile
+ tests/test-nevents/Makefile
+ tests/test-libustinstr-malloc/Makefile
+ tests/dlopen/Makefile
+ tests/same_line_marker/Makefile
+ tests/trace_event/Makefile
+ tests/tracepoint/Makefile
+ tests/tracepoint/benchmark/Makefile
+ tests/register_test/Makefile
+ tests/libustctl_function_tests/Makefile
+ libustinstr-malloc/Makefile
+ libustfork/Makefile
+ libustconsumer/Makefile
+ ust-consumerd/Makefile
+ ustctl/Makefile
+ libustcomm/Makefile
+ libustctl/Makefile
+ snprintf/Makefile