Bug 75153
| Summary: | C++ libraries are not found? | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Mate Wierdl <mw-redhat> |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED NOTABUG | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.0 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2002-10-07 13:50:11 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
do you have libstdc++-devel-3.2-7 installed (well, gcc-c++-3.2-7 requires it)?
Works just fine for me:
In file included from /usr/include/c++/3.2/backward/iostream.h:31,
from /tmp/x.C:1:
/usr/include/c++/3.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
$ rpm -ql libstdc++-devel|grep /iostr /usr/include/c++/3.2/backward/iostream.h /usr/include/c++/3.2/iostream $ c++ foo.C foo.C:1:22: iostream.h: No such file or directory $ sed 's/\.h//' foo.C > foo.C.tmp && mv foo.C.tmp foo.C && c++ foo.C foo.C:1:20: iostream: No such file or directory Forgot: $ rpm -q libstdc++-devel libstdc++-devel-3.2-7 Can you add -v to g++ -v foo.C?
g++ foo.C -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --host=i386-redhat-linux --with-system-zlib --enable-__cxa_atexit
Thread model: posix
gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
/usr/lib/gcc-lib/i386-redhat-linux/3.2/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i386__ foo.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase foo.C -version -o /tmp/cc42SqCe.s
GNU CPP version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) (i386-redhat-linux)
compiled by GNU C version 3.2 20020903 (Red Hat Linux 8.0 3.2-7).
ignoring nonexistent directory "/usr/i386-redhat-linux/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/c++/3.2
/usr/include/c++/3.2/i386-redhat-linux
/usr/include/c++/3.2/backward
/usr/local/include
/usr/lib/gcc-lib/i386-redhat-linux/3.2/include
/usr/include
End of search list.
In file included from /usr/include/c++/3.2/backward/iostream.h:31,
from foo.C:1:
/usr/include/c++/3.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
...
$ g++ foo.C -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --host=i386-redhat-linux --with-system-zlib --enable-__cxa_atexit
Thread model: posix
gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
/usr/lib/gcc-lib/i386-redhat-linux/3.2/cc1plus -v -D__GNUC__=3
-D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D__ELF__
-Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__
-D__unix -D__linux
-Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386
-Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i386__ foo.C -D__GNUG__=3
-D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase foo.C -version -o /tmp/ccALs40F.s
GNU CPP version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) (i386-redhat-linux)
compiled by GNU C version 3.2 20020903 (Red Hat Linux 8.0 3.2-7).
ignoring nonexistent directory "/usr/lib/../include/c++/3.2"
ignoring nonexistent directory "/usr/lib/../include/c++/3.2/i386-redhat-linux"
ignoring nonexistent directory "/usr/lib/../include/c++/3.2/backward"
ignoring nonexistent directory "/usr/lib/../i386-redhat-linux/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc-lib/i386-redhat-linux/3.2/include
/usr/include
End of search list.
foo.C:1:20: iostream: No such file or directory
So obviously,
/usr/include/c++/3.2
/usr/include/c++/3.2/i386-redhat-linux
/usr/include/c++/3.2/backward
are missing from the search directory list. Wonder why...
I am running the c++ command as a brand new user so my personal init files
cannot be the problem.
If you are sure /usr/include/c++/3.2 directory exists, then the problem is that /usr/lib/../include/c++/3.2 is not /usr/include/c++/3.2, ie. /usr/lib is a symlink somewhere else. Can you please check that? $ ls -dl /usr/include/c++/3.2 drwxr-xr-x 6 root root 4096 Oct 4 17:02 /usr/include/c++/3.2/ and $ ls -l /usr/lib lrwxrwxrwx 1 root root 24 Jul 5 22:04 /usr/lib -> ../home/symlinks/usr_lib/ Well, ../home/symlinks/ is certainly not what the distribution created. You need to add a symlink wherever ../home/symlinks/usr_lib really points to. I do not understand this at all: what is wrong with /usr/lib being a symlink?
If your partition containing /usr/lib gets full, what do you do?
Is it documented somewhere that if /usr/lib is a symlink then c++ will not work
anymore? Why is c++ looking for include files in
/usr/lib/../include/c++/3.2
and why not directly in /usr/include/c++/3.2 ( that is in $(includeddir)/c++/3.2
or ${libsubdir}/include/c++/3.2)
reading gcc-3.2-20020903/gcc/configure, it seems setting
enable_version_specific_runtime_libs=yes
would solve the problem. Otherwise
gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix)
| sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
sets the includdir searchpath.
I do not understand when you say
You need to add a symlink wherever ../home/symlinks/usr_lib really points to.
Where do I add this? To every g++ command I run? How?
Mate
OK, so you mean for me to create something like ln -s ../home/symlinks/usr_include /usr/include to match ln -s ../home/symlinks/usr_lib /usr/lib In other words, if I make /usr/lib a symlink then /usr/include has to made one too and point to a dir with the same parentdir? What else do I have to make a symlink once /usr/lib is? Before I can tell you you need to ls -l /home/symlinks/usr_lib Note that the above behaviour is how gcc always worked by design, so that it can be relocated somewhere else without too much pain. Well, ls -l /home/symlinks/usr_lib/|wc -l and /home/symlinks/usr_lib is not a symlink anymore. The output is at http://www.csi.hu/mw/lsl_usrlib.txt As for the behavior of gcc this way: why not solve the relocatability problem by looking up the search directories in a config file and in the environment? The price I pay for the flexibilty in relocating gcc is that I cannot move my /usr/lib directory anywhere. When # du -s /home/symlinks/usr_lib/ 1088016 /home/symlinks/usr_lib it certainly can happen that 1G has to be moved some place else. (Thx for your patience, though) |
Description of Problem: even most basic C++ program does not compile Version-Release number of selected component (if applicable): # rpm -q gcc gcc-3.2-7 How Reproducible: always Steps to Reproduce: 1. Create program #include <iostream.h> int main() { return (0); } 2. run g++ foo.C or gcc foo.C 3. Actual Results: # g++ foo.C foo.C:1:22: iostream.h: No such file or directory Expected Results: Additional Information: