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Michael,<br>
<br>
This behavior repeats itself on Debian Linux when I update GCC 4.7.2
to anything above the current pathways of the Sid branch release of
GCC/Libstdc++ collection.<br>
<br>
I've tested it twice with their latest updates for the 4.7.2 branch
in Experimental and nothing on there end changes and from prior
issues with this someone either has to update the pathways for these
directory structures in LLVM/Clang or don't even bother first
building LLVM/Clang with anything newer than <br>
<br>
gcc-4.7.2-5 and all that includes with gcc-4.7-base, etc.<br>
<br>
This is fine with me because I'd rather let Debian muck with all the
llvm-toolchain-3.2 attempts they continue to try:<br>
<br>
<a
href="http://qa.debian.org/developer.php?login=pkg-llvm-team@lists.alioth.debian.org">http://qa.debian.org/developer.php?login=pkg-llvm-team@lists.alioth.debian.org</a><br>
<br>
before I update any release from them. I've just stuck with 4.7.2-5
and building trunk once and then configuring with cmake the
necessary paths in the newest trunk to make everything build under
/usr/local<br>
<br>
- Marc Driftmeyer<br>
<br>
<br>
<div class="moz-cite-prefix">On 02/26/2013 06:19 AM, Michael Young
wrote:<br>
</div>
<blockquote cite="mid:SNT139-W35B7D2AF312F0FE00DB690ADFC0@phx.gbl"
type="cite">
<pre wrap="">
Just in case someone is having similar problems and/or following this
thread, here's my final "solution" (at least, for now).
In my bash build script, prior to configure, I set the C_INCLUDE_PATH
and CPLUS_INCLUDE_PATH to empty strings, and then set some other
environment variables instead:
export C_INCLUDE_PATH=
export CPLUS_INCLUDE_PATH=
SYSTEM_INCLUDE_PATH="/usr/include/i386-linux-gnu"
export CC=gcc
export CXX=g++
export CFLAGS="-isystem ""${SYSTEM_INCLUDE_PATH}"""
export CXXFLAGS="-isystem ""${SYSTEM_INCLUDE_PATH}"""
This allowed me to build (configure and make) without error.
It's not pretty, it's not perfect, but it seems to work.
Since the LIBRARY_PATH environment variable is still set in this
"solution", I'm slightly concerned that I may be picking up incorrect
libraries with clang (I'm not sure whether clang actually uses this
variable), but everything so far, including the testsuite (with a
subsequent "make check-all"), does seem to compile, link, and run
without problems.
Note that I did try to do the same with LIBRARY_PATH (using
SYSTEM_LIBRARY_PATH="/usr/lib/i386-linux-gnu"
export LDFLAGS="-L""${SYSTEM_LIBRARY_PATH}"""
instead), but configure still choked when running gcc - it couldn't
find the crt*.o libraries. Here's the relevant output from the
config.log file:
***
configure:2141: checking for C compiler default output file name
configure:2168: gcc -isystem /usr/include/i386-linux-gnu -L/usr/lib/i386-linux-gnu conftest.c>&5
/usr/bin/ld: cannot find crt1.o: No such file or directory
/usr/bin/ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
configure:2171: $? = 1
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME "LLVM"
| #define PACKAGE_TARNAME "llvm"
| #define PACKAGE_VERSION "3.2svn"
| #define PACKAGE_STRING "LLVM 3.2svn"
| #define PACKAGE_BUGREPORT <a class="moz-txt-link-rfc2396E" href="http://llvm.org/bugs/">"http://llvm.org/bugs/"</a>
| #define LLVM_VERSION_MAJOR 3
| #define LLVM_VERSION_MINOR 2
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:2210: error: C compiler cannot create executables
***
I tried compiling a simple program using gcc, similar to what the
configure script indicated, but with -v on the command line:
echo "int main(){;return 0;}"> test.c
gcc -v -isystem /usr/include/i386-linux-gnu -L/usr/lib/i386-linux-gnu test.c
Here's the output from that:
***
$ gcc -v -isystem /usr/include/i386-linux-gnu -L/usr/lib/i386-linux-gnu test.c
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/4.7.2/lto-wrapper
Target: i686-pc-linux-gnu
Configured
with:
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/source/gcc-4.7.2/configure
--prefix=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install
--with-local-prefix=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/local
--with-gmp=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/source/../gmp
--with-mpfr=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/source/../mpfr
--with-mpc=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/source/../mpc
--enable-languages=c,c++,java
--with-pkgversion=''\''MJY_Build__2013/02/22_04:52'\'''
Thread model: posix
gcc version 4.7.2 ('MJY_Build__2013/02/22_04:52')
COLLECT_GCC_OPTIONS='-v'
'-isystem' '/usr/include/i386-linux-gnu' '-L/usr/lib/i386-linux-gnu'
'-mtune=generic' '-march=pentiumpro'
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/4.7.2/cc1
-quiet -v -isystem /usr/include/i386-linux-gnu test.c -quiet -dumpbase
test.c -mtune=generic -march=pentiumpro -auxbase test -version -o
/tmp/ccUYclfj.s
GNU C ('MJY_Build__2013/02/22_04:52') version 4.7.2 (i686-pc-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 5.1.0, MPFR version 3.1.1, MPC version 1.0.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring duplicate directory "/usr/include/i386-linux-gnu"
ignoring nonexistent directory "/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/local/include"
ignoring
nonexistent directory
"/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/i386-linux-gnu
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/include
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/include
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/include-fixed
/usr/include
End of search list.
GNU C ('MJY_Build__2013/02/22_04:52') version 4.7.2 (i686-pc-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 5.1.0, MPFR version 3.1.1, MPC version 1.0.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 72f68229415f19718f7dd812e60ab105
COLLECT_GCC_OPTIONS='-v'
'-isystem' '/usr/include/i386-linux-gnu' '-L/usr/lib/i386-linux-gnu'
'-mtune=generic' '-march=pentiumpro'
as -v --32 -o /tmp/ccB5jzCx.o /tmp/ccUYclfj.s
GNU assembler version 2.22 (i686-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.22
COMPILER_PATH=/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/4.7.2/:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/4.7.2/:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/
LIBRARY_PATH=./:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/:/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v'
'-isystem' '/usr/include/i386-linux-gnu' '-L/usr/lib/i386-linux-gnu'
'-mtune=generic' '-march=pentiumpro'
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/libexec/gcc/i686-pc-linux-gnu/4.7.2/collect2
--eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 crt1.o
crti.o
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/crtbegin.o
-L/usr/lib/i386-linux-gnu -L.
-L/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2
-L/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/../../..
/tmp/ccB5jzCx.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc
--as-needed -lgcc_s --no-as-needed
/home/youngmj/DevTools/Gnu_Compiler_Collection-gcc/Version_4.7.2/install/lib/gcc/i686-pc-linux-gnu/4.7.2/crtend.o
crtn.o
/usr/bin/ld: cannot find crt1.o: No such file or directory
/usr/bin/ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
$
***
Note that the invocation of gcc's collect2 has references on the
command line to the missing libraries that precede the -L option to
add the directory needed to find these libraries. I'm not a gcc
expert, but this looks rather suspicious to me, and may be what's
preventing me from using LDFLAGS rather than LIBRARY_PATH.
- Mike
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</pre>
</blockquote>
<br>
<div class="moz-signature">-- <br>
Marc J. Driftmeyer<br>
Email :: <a href="mailto:mjd@reanimality.com">mjd@reanimality.com</a><br>
Web :: <a href="http://www.reanimality.com">http://www.reanimality.com</a><br>
Cell :: (509) 435-5212
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