[Bug libstdc++/35197] New: Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[Bug libstdc++/35197] New: Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[skunk at iskunk dot org]

I have a build of GCC 4.2.3 compiled with
--enable-version-specific-runtime-libs. It fails to link a trivial C++ program,
because the (non-GNU) linker does not know about libstdc++, and the GCC
frontend is not passing an appropriate -L... flag to the linker so that it can
find the library.

$ g++ -o hello hello.cxx
/usr/bin/ld:
Can't locate file for: -lstdc++
collect2: ld returned 1 exit status

$ g++ -v -o hello hello.cxx
[superfluous verbiage elided]
mips-tfile (GCC) 4.2.3
 /opt/tg/bin/../libexec/gcc/alphaev56-dec-osf4.0g/4.2.3/collect2 -G 8 -O1 -S
-call_shared -o hello /usr/lib/cmplrs/cc/crt0.o
-L/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3 -L/opt/tg/bin/../lib/gcc
-L/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3 -L/usr/lib/cmplrs/cc
-L/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../..
-L/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../.. /tmp//ccu9eHi9.o
-lstdc++ -lm -lgcc -lc -lgcc
/usr/bin/ld:
Can't locate file for: -lstdc++
collect2: ld returned 1 exit status

(I notice that libstdc++ is present immediately under
/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/, which the -L... flags narrowly miss.)


-- 
           Summary: Native linker can't locate file for -lstdc++ with --
                    enable-version-specific-runtime-libs
           Product: gcc
           Version: 4.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: skunk at iskunk dot org
 GCC build triplet: alphaev56-dec-osf4.0g
  GCC host triplet: alphaev56-dec-osf4.0g
GCC target triplet: alphaev56-dec-osf4.0g


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35197

[Bug libstdc++/35197] Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[Ralf dot Wildenhues at gmx dot de]

------- Comment #1 from Ralf dot Wildenhues at gmx dot de  2008-02-15 07:28 -------
> $ g++ -v -o hello hello.cxx
> [superfluous verbiage elided]

Please don't elide that.  It shows how exactly you configured GCC, so please
show that.


-- 

Ralf dot Wildenhues at gmx dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Ralf dot Wildenhues at gmx
                   |                            |dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35197

[Bug libstdc++/35197] Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[skunk at iskunk dot org]

------- Comment #2 from skunk at iskunk dot org  2008-02-15 07:53 -------
Not-so-superfluous verbiage restored:

$ g++ -v -o hello hello.cxx
Using built-in specs.
Target: alphaev56-dec-osf4.0g
Configured with: /tg/freeport/src/gcc/gcc--4.2.3/configure --prefix=/opt/tg
--disable-dependency-tracking --disable-maintainer-mode --disable-shared
--disable-nls --enable-languages=c,c++ --enable-version-specific-runtime-libs
--with-pic
Thread model: posix
gcc version 4.2.3
 /opt/tg/bin/../libexec/gcc/alphaev56-dec-osf4.0g/4.2.3/cc1plus -quiet -v
-iprefix /opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/ hello.cxx -quiet
-dumpbase hello.cxx -mcpu=ev56 -auxbase hello -version -o /tmp//ccd6P9Gc.s
ignoring nonexistent directory
"/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../../../alphaev56-dec-osf4.0g/include"
ignoring duplicate directory
"/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++"
ignoring duplicate directory
"/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++/alphaev56-dec-osf4.0g"
ignoring duplicate directory
"/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++/backward"
ignoring nonexistent directory
"/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../../../alphaev56-dec-osf4.0g/include"
#include "..." search starts here:
#include <...> search starts here:
 /opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++

/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++/alphaev56-dec-osf4.0g
 /opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include/c++/backward
 /opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include
 /usr/local/include
 /opt/tg/include
 /opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/include
 /usr/include
End of search list.
GNU C++ version 4.2.3 (alphaev56-dec-osf4.0g)
        compiled by GNU C version 4.2.3.
GGC heuristics: --param ggc-min-expand=65 --param ggc-min-heapsize=65536
Compiler executable checksum: 19341a267fc991710d8c03ed2d8f4731
 as -g -nocpp -O0 -o /tmp//cc9AP5DF.o /tmp//ccd6P9Gc.s
 /opt/tg/bin/../libexec/gcc/alphaev56-dec-osf4.0g/4.2.3/mips-tfile -v -o
/tmp//cc9AP5DF.o /tmp//ccd6P9Gc.s
mips-tfile (GCC) 4.2.3
 /opt/tg/bin/../libexec/gcc/alphaev56-dec-osf4.0g/4.2.3/collect2 -G 8 -O1 -S
-call_shared -o hello /usr/lib/cmplrs/cc/crt0.o
-L/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3 -L/opt/tg/bin/../lib/gcc
-L/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3 -L/usr/lib/cmplrs/cc
-L/opt/tg/bin/../lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../..
-L/opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3/../../.. /tmp//cc9AP5DF.o
-lstdc++ -lm -lgcc -lc -lgcc
/usr/bin/ld:
Can't locate file for: -lstdc++
collect2: ld returned 1 exit status


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35197

[Bug libstdc++/35197] Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[Ralf dot Wildenhues at gmx dot de]

------- Comment #3 from Ralf dot Wildenhues at gmx dot de  2008-02-15 15:30 -------
OK.  Well, libstdc++ should not be present in
  /opt/tg/lib/gcc/alphaev56-dec-osf4.0g
but instead in
  /opt/tg/lib/gcc/alphaev56-dec-osf4.0g/4.2.3

Do you still have the build tree or a build log?  If the former, could you
please look up the value of glibcxx_toolexeclibdir in
  alphaev56-dec-osf4.0g/libstdc++-v3/src/Makefile

to find out why it's not being installed there?

I should note that I'm seeing a related problem on x86_64-unknown-linux-gnu
with --enable-version-specific-runtime-libs not finding -lgcc_s which is in
$libdir/gcc/x86_64-unknown-linux-gnu/lib64.  But I think that is a separate
bug (and I will open a PR for it later).


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35197

[Bug libstdc++/35197] Native linker can't locate file for -lstdc++ with --enable-version-specific-runtime-libs

[skunk at iskunk dot org]

------- Comment #4 from skunk at iskunk dot org  2008-02-16 18:42 -------
Argh... now I see what's going on here.

$ grep glibcxx_toolexeclibdir.= alphaev56-dec-osf4.0g/libstdc++-v3/src/Makefile
glibcxx_toolexeclibdir = ${toolexecdir}/${gcc_version}$(MULTISUBDIR)
$ grep gcc_version.:= alphaev56-dec-osf4.0g/libstdc++-v3/src/Makefile
gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)

This is another manifestation of bug #35199. I'll update my patch to cover this
instance of $(shell cat /path/to/BASE-VER), and any others in the tree.

Sorry for the trouble, gentlemen.

*** This bug has been marked as a duplicate of 35199 ***


-- 

skunk at iskunk dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35197