*) AC_MSG_ERROR([Invalid setting for --enable-pthreads. Use "yes" or "no"]) ;;
esac
+dnl Allow disablement of zlib
+AC_ARG_ENABLE(zlib,
+ AS_HELP_STRING([--enable-zlib],
+ [Use zlib for compression/decompression if
+ available (default is YES)]),,
+ enableval=default)
+case "$enableval" in
+ yes) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
+ no) AC_SUBST(LLVM_ENABLE_ZLIB,[0]) ;;
+ default) AC_SUBST(LLVM_ENABLE_ZLIB,[1]) ;;
+ *) AC_MSG_ERROR([Invalid setting for --enable-zlib. Use "yes" or "no"]) ;;
+esac
+AC_DEFINE_UNQUOTED([LLVM_ENABLE_ZLIB],$LLVM_ENABLE_ZLIB,
+ [Define if zlib is enabled])
+
dnl Allow building without position independent code
AC_ARG_ENABLE(pic,
AS_HELP_STRING([--enable-pic],
x86_64) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
Sparc) TARGETS_TO_BUILD="Sparc $TARGETS_TO_BUILD" ;;
PowerPC) TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
+ AArch64) TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
ARM) TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
Mips) TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
MBlaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
AC_MSG_CHECKING([optional compiler flags])
CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
-CXX_FLAG_CHECK(NO_NESTED_ANON_TYPES, [-Wno-nested-anon-types])
CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
+
dnl GCC's potential uninitialized use analysis is weak and presents lots of
dnl false positives, so disable it.
+NO_UNINITIALIZED=
+NO_MAYBE_UNINITIALIZED=
if test "$GXX" = "yes"
then
CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
- dnl known to be uninitialized from cases which might be uninitialized. We
+ dnl known to be uninitialized from cases which might be uninitialized. We
dnl still want to catch the first kind of errors.
- if test "$NO_MAYBE_UNINITIALIZED" != "-Wno-maybe-uninitialized"
+ if test -z "$NO_MAYBE_UNINITIALIZED"
then
CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
- else
- dnl Some versions of gcc accept unsupported -W flags if there is
- dnl no warning but stop with an error when a warning is
- dnl encountered. If this gcc is earlier than 4.7, just use
- dnl -Wno-uninitialized.
- gxx_version=`$CXX -dumpversion`
- gxx_version_major=`echo $gxx_version | cut -d'.' -f1`
- gxx_version_minor=`echo $gxx_version | cut -d'.' -f2`
- gxx_version_patch=`echo $gxx_version | cut -d'.' -f3`
-
- if test "$gxx_version_major" -ge "4" \
- && test "$gxx_version_minor" -ge "7"; then
- dnl AC_SUBST doesn't work with empty strings.
- NO_UNINITIALIZED=
- else
- NO_MAYBE_UNINITIALIZED=
- CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
- fi
fi
-else
- NO_UNINITIALIZED=
- NO_MAYBE_UNINITIALIZED=
fi
-AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $NO_NESTED_ANON_TYPES $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
+AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
AC_ARG_WITH([python],
[AS_HELP_STRING([--with-python], [path to python])],
[Have pthread_getspecific]))
fi
+dnl zlib is optional; used for compression/uncompression
+if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
+ AC_CHECK_LIB(z, compress2)
+fi
+
dnl Allow extra x86-disassembler library
AC_ARG_WITH(udis86,
AS_HELP_STRING([--with-udis86=<path>],
AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h])
AC_CHECK_HEADERS([valgrind/valgrind.h])
AC_CHECK_HEADERS([fenv.h])
+AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]])
if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
AC_CHECK_HEADERS(pthread.h,
AC_SUBST(HAVE_PTHREAD, 1),
else
AC_SUBST(HAVE_PTHREAD, 0)
fi
+if test "$LLVM_ENABLE_ZLIB" -eq 1 ; then
+ AC_CHECK_HEADERS(zlib.h,
+ AC_SUBST(HAVE_LIBZ, 1),
+ AC_SUBST(HAVE_LIBZ, 0))
+else
+ AC_SUBST(HAVE_LIBZ, 0)
+fi
dnl Try to find ffi.h.
if test "$llvm_cv_enable_libffi" = "yes" ; then
AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
AC_CHECK_FUNCS([powf fmodf strtof round ])
+AC_CHECK_FUNCS([log log2 log10 exp exp2])
AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit strdup ])