Error while building crystal from sources: llvm/IR/DIBuilder.h: No such file or directory

[ovidiugabriel]

Hello,

I've just got the latest master branch as advised in https://crystal-lang.org/docs/installation/from_source_repository.html but I have some compilation errors.

Using /usr/bin/llvm-config [version=3.4.2]
g++ -c  -o src/llvm/ext/llvm_ext.o src/llvm/ext/llvm_ext.cc -I/usr/include  -DNDEBUG 
 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS 
-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong 
--param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic -fomit-frame-pointer 
-std=c++11 -fvisibility-inlines-hidden -fno-exceptions -fPIC -Woverloaded-virtual 
-Wcast-qual
src/llvm/ext/llvm_ext.cc:1:31: fatal error: llvm/IR/DIBuilder.h: No such file or directory
 #include "llvm/IR/DIBuilder.h"
                               ^
compilation terminated.
make: *** [src/llvm/ext/llvm_ext.o] Error 1

[RX14]

LLVM 3.4 is too old to be supported, and has been for a while. We only support LLVM 3.6 and above (I think). LLVM versions less than 3.9 haven't been tested in a while, so i'd recommend using the latest version if at all possible.

[evandrojr]

I got this error with LLVM7 as well!

➜  crystal git:(master) make                                              
Using /usr/bin/llvm-config [version=7.0.0]
g++ -c  -o src/llvm/ext/llvm_ext.o src/llvm/ext/llvm_ext.cc -I/usr/lib/llvm-7/include -std=c++0x -fuse-ld=gold -Wl,--no-keep-files-mapped -Wl,--no-map-whole-files -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wdelete-non-virtual-dtor -Wno-comment -ffunction-sections -fdata-sections -O2 -DNDEBUG  -fno-exceptions -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
src/llvm/ext/llvm_ext.cc:1:31: fatal error: llvm/IR/DIBuilder.h: No such file or directory
compilation terminated.
Makefile:123: recipe for target 'src/llvm/ext/llvm_ext.o' failed
make: *** [src/llvm/ext/llvm_ext.o] Error 1

[RX14]

I jist looked at LLVM git and DIBuilder.h hasn't gone away or changed since 6.0, so i'd go so far as to blame the packaging here.