[Mono-dev] LLVM backend won't compile

Paul Melis mono-devel at assumetheposition.nl
Mon Dec 21 12:55:55 EST 2009

Zoltan Varga wrote:
> Hi,
>     Btw,  I can't seem to find the switch to make to have it output the
>     command it's executing (for checking -I flags)...
> Its make V=1, just like with the linux kernel.
Ah, didn't know that :)

Well, it seems the llvm include path is missing:

make[4]: Entering directory `/home/melis/c/mono-2.6.1/mono/mini'
../../doltcompile /home/melis/local/bin/gcc -DHAVE_CONFIG_H -I.
-I../../libgc/include -pthread -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include     -g -O2 -fno-strict-aliasing
-Wdeclaration-after-statement -g -Wall -Wunused -Wmissing-prototypes
-Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes
-Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings
-mno-tls-direct-seg-refs -MT mini-llvm.lo -MD -MP -MF
.deps/mini-llvm.Tpo -c -o mini-llvm.lo mini-llvm.c
mini-llvm.c:14:25: error: llvm-c/Core.h: No such file or directory
mini-llvm.c:15:36: error: llvm-c/ExecutionEngine.h: No such file or
mini-llvm.c:17:27: error: mini-llvm-cpp.h: No such file or directory
mini-llvm.c:23: error: expected specifier-qualifier-list before
mini-llvm.c:39: error: expected specifier-qualifier-list before

I do see the correct values in mono/mini/Makefile though:

LLVM_CONFIG = /home/melis/llvm/bin/llvm-config
LLVM_CXXFLAGS = -I/home/melis/llvm/include  -D_DEBUG -D_GNU_SOURCE
LLVM_LDFLAGS = -L/home/melis/llvm/lib  -lpthread -lffi -ldl -lm
LLVM_LIBS = -L/home/melis/llvm/lib  -lpthread -lffi -ldl -lm 
-lLLVMX86CodeGen -lLLVMX86Info -lLLVMX86Disassembler -lLLVMSelectionDAG
-lLLVMAsmPrinter -lLLVMJIT -lLLVMExecutionEngine -lLLVMCodeGen
-lLLVMScalarOpts -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis
-lLLVMTarget -lLLVMMC -lLLVMBitWriter -lLLVMCore -lLLVMSupport
-lLLVMSystem -lstdc++

A bug in the build system?


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