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authorBjörn Gustavsson <[email protected]>2011-11-30 10:44:42 +0100
committerBjörn Gustavsson <[email protected]>2011-11-30 10:44:42 +0100
commitf7c881208154dcae6d0b753a160eb771710bd47a (patch)
tree14f19e6524a33f5e2d664e162ecf0d3b21d0d959 /erts/aclocal.m4
parent8e5ef86ee21cb6491287710606a7525f45cc50fc (diff)
parent3c36d2c5f75827f098a691dfcf534ab3b95d7bd9 (diff)
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Merge branch 'bjorn/llvm-issues/OTP-9712'
* bjorn/llvm-issues/OTP-9712: INSTALL.md: Update build instructions for Lion Fix clang linking problem configure: Define NO_JUMP_TABLE if all we have is llvm-gcc beam_emu.c: Eliminate warnings when NO_JUMP_TABLE is defined beam_emu.c: Use the correct void* type for computed gotos MacOS X: Completely remove obsolete -no-cpp-precomp option
Diffstat (limited to 'erts/aclocal.m4')
-rw-r--r--erts/aclocal.m411
1 files changed, 9 insertions, 2 deletions
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index bd228a2d1f..ea5cc67fbe 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -125,8 +125,10 @@ AC_DEFUN(LM_FIND_EMU_CC,
ac_cv_prog_emu_cc,
[
AC_TRY_COMPILE([],[
-#ifdef __llvm__
-#error "llvm is currently unable to compile beam_emu.c"
+#if defined(__clang_major__) && __clang_major__ >= 3
+ /* clang 3.x or later is fine */
+#elif defined(__llvm__)
+#error "this version of llvm is unable to correctly compile beam_emu.c"
#endif
__label__ lbl1;
__label__ lbl2;
@@ -168,6 +170,11 @@ if test $ac_cv_prog_emu_cc != no; then
CFLAGS=""
CPPFLAGS=""
AC_TRY_COMPILE([],[
+#if defined(__clang_major__) && __clang_major__ >= 3
+ /* clang 3.x or later is fine */
+#elif defined(__llvm__)
+#error "this version of llvm is unable to correctly compile beam_emu.c"
+#endif
__label__ lbl1;
__label__ lbl2;
int x = magic();