llvm dev - Jun 2008 - [LLVMdev] The first two lines of llvm tutorial don't compile.

On Mon, 02 Jun 2008 09:52:16 -0700, Thomas Hudson wrote:
> You need to use the script 'llvm-config' to pass correct arguments
to g
> ++:
> 
> g++ -o broken.o `llvm-config --cxxflags` broken.cpp
> 
> 
Interesting.  When I type the command as you provided it (using cut-and-paste) I
get:


hendrik at lovesong:~/dv/lang/hlvm$ g++ -o broken.o `llvm-config --cxxflags`
broken.cpp
g++: (Debian: No such file or directory
g++: 2.2-7): No such file or directory
hendrik at lovesong:~/dv/lang/hlvm$ 


So I execute the script by itself, and get


hendrik at lovesong:~/dv/lang/hlvm$ llvm-config --cxxflags
-I/usr/include/llvm  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -O2
-fomit-frame-pointer -DLLVM_DEBIAN_INFO= (Debian 2.2-7) -Woverloaded-virtual
hendrik at lovesong:~/dv/lang/hlvm$ 


Putting that output into the command, and removing the
-DLLVM_DEBIAN_INFO= (Debian 2.2-7) from it, things work
as well as one might expect for a program without main():


hendrik at lovesong:~/dv/lang/hlvm$ g++ -o broken.o -I/usr/include/llvm 
-D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -O2 -fomit-frame-pointer
-Woverloaded-virtual
broken.cpp/usr/lib/gcc/i486-linux-gnu/4.2.4/../../../../lib/crt1.o: In function
`_start':
(.text+0x18): undefined reference to `main'
collect2: ld returned 1 exit status
hendrik at lovesong:~/dv/lang/hlvm$ 


Do you suppose a bug should be logged against the Debian package?

-- hendrik

On Jun 2, 2008, at 10:10 AM, Hendrik Boom wrote:
> On Mon, 02 Jun 2008 09:52:16 -0700, Thomas Hudson wrote:
>
> So I execute the script by itself, and get
>
>
> hendrik at lovesong:~/dv/lang/hlvm$ llvm-config --cxxflags
> -I/usr/include/llvm  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS - 
> O2 -fomit-frame-pointer -DLLVM_DEBIAN_INFO= (Debian 2.2-7) - 
> Woverloaded-virtual
> hendrik at lovesong:~/dv/lang/hlvm$
>
>
> Putting that output into the command, and removing the
> -DLLVM_DEBIAN_INFO= (Debian 2.2-7) from it, things work
> as well as one might expect for a program without main():
>
I've seen this (or something similar) happen before on Darwin.  The  
issue is that something, either inside llvm-config or in the script  
that generates llvm-config should be putting quotes around the  
parameters in quotes.

--Owen

On Mon, 2008-06-02 at 17:10 +0000, Hendrik Boom wrote:
> Do you suppose a bug should be logged against the Debian package?
> 
Looks that way. I build LLVM from subversion on my Ubuntu desktop and I
don't see that flag:

thudson at thudson:~$ llvm-config --cxxflags
-I/usr/local/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -O3
-fomit-frame-pointer  -Woverloaded-virtual

On Mon, 02 Jun 2008 10:55:57 -0700, Thomas Hudson wrote:
> On Mon, 2008-06-02 at 17:10 +0000, Hendrik Boom wrote:
>> Do you suppose a bug should be logged against the Debian package?
>> 
> Looks that way. I build LLVM from subversion on my Ubuntu desktop and I
> don't see that flag:
> 
> thudson at thudson:~$ llvm-config --cxxflags -I/usr/local/include  -D_DEBUG
>  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -O3 -fomit-frame-pointer 
> -Woverloaded-virtual
OK.  Done.

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=484153

-- hendrik

> The Debian package llvm-dev also appears to be lacking the IRBuilder.h 
> include file!  
Right, because Debian includes llvm 2.2 and file was renamed after 2.2
release. Tutorial reflects LLVM TOT.
-- 
With best regards, Anton Korobeynikov.

Faculty of Mathematics & Mechanics, Saint Petersburg State University.

On Tue, 03 Jun 2008 19:34:33 +0400, Anton Korobeynikov wrote:
> Debian includes llvm 2.2 and file was renamed after 2.2 release.
> Tutorial reflects LLVM TOT.
And I was using the online documentation instead of the Debian llvm-doc 
package, which has a link to /usr/share/doc/llvm-doc/html/tutorial/, but 
the file does not exist.

-- hendrik