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authorBjörn Gustavsson <[email protected]>2011-08-30 17:01:14 +0200
committerBjörn Gustavsson <[email protected]>2011-09-20 14:02:45 +0200
commitdd24ca1cb76de9973220fed356540f190a05ac83 (patch)
tree7171c03de6e57d2de3fa3f72e7a820a78f73a42e /erts/emulator/Makefile.in
parente84f232326b2800ca806c867b2bfbe3652d423cb (diff)
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Fix build problems on MacOS 10.7 (Lion)
On MacOS 10.7 (Lion) with Xcode 4.1 installed, the default C compiler is llvm-gcc-4.2. That compiler compiles beam_emu.c incorrectly, resulting in an emulator that will not start. The problem can be worked around by turning off all optimizations, but that will significantly degrade the performance of the run-time system. The problem can also be worked around manually like this: CC=gcc-4.2 ./configure To allow a working system to be built "out of the box", have the configure script set up the emulator Makefile so that gcc-4.2 will be used to compile beam_emu.c if the default compiler is llvm-based. All other C files will still be compiled with the default compiler.
Diffstat (limited to 'erts/emulator/Makefile.in')
-rw-r--r--erts/emulator/Makefile.in10
1 files changed, 5 insertions, 5 deletions
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index b658e79378..620402fbfb 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -598,11 +598,6 @@ INCLUDES += -I$(ERL_TOP)/erts/etc/vxworks
endif
ifeq ($(TARGET),win32)
-# Usually the same as the default rule, but certain platforms (i.e. win32) mix
-# different compilers
-$(OBJDIR)/beam_emu.o: beam/beam_emu.c
- $(EMU_CC) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
-
$(OBJDIR)/dll_sys.o: sys/$(ERLANG_OSTYPE)/sys.c
$(CC) $(CFLAGS) -DERL_RUN_SHARED_LIB=1 $(INCLUDES) -c $< -o $@
@@ -616,6 +611,11 @@ $(OBJDIR)/beam_emu.o: beam/beam_emu.c
$(CC) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) \
-OPT:Olimit=0 -WOPT:lpre=off:spre=off:epre=off \
$(INCLUDES) -c $< -o $@
+else
+# Usually the same as the default rule, but certain platforms (e.g. win32) mix
+# different compilers
+$(OBJDIR)/beam_emu.o: beam/beam_emu.c
+ $(EMU_CC) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
endif