[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 Jonathan Wakely changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Target Milestone|--- |6.0 --- Comment #15 from Jonathan Wakely --- thanks - closing then
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #14 from Thomas Preud'homme --- (In reply to Jonathan Wakely from comment #13) > This should be fixed now, please check. It is indeed. Thanks.
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 Jonathan Wakely changed: What|Removed |Added Version|unknown |6.0 --- Comment #13 from Jonathan Wakely --- This should be fixed now, please check.
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #12 from Jonathan Wakely --- Author: redi Date: Thu May 14 11:47:19 2015 New Revision: 223194 URL: https://gcc.gnu.org/viewcvs?rev=223194&root=gcc&view=rev Log: PR libstdc++/66018 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for struct dirent.d_type. * config.h.in: Regenerate. * configure: Regenerate. * configure.ac (AC_STRUCT_DIRENT_D_TYPE): Remove. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/acinclude.m4 trunk/libstdc++-v3/config.h.in trunk/libstdc++-v3/configure trunk/libstdc++-v3/configure.ac
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #11 from Jonathan Wakely --- It seems very intentional, not a bug. I have a patch to stop using it but I can't regenerate the configure script because of the move to automake-1.11.6
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #10 from Thomas Preud'homme --- (In reply to Jonathan Wakely from comment #9) > I think the right solution is just to stop using AC_STRUCT_DIRENT_D_TYPE > which expands to the opendir link test. > > The autoconf manual doesn't say anything about it doing a link test, I was > only trying to find whether DIR.d_type exists :-( It links to check which library contains opendir. I'm not sure why it searches this though. Maybe a bug in autoconf? Best regards, Thomas
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #9 from Jonathan Wakely --- I think the right solution is just to stop using AC_STRUCT_DIRENT_D_TYPE which expands to the opendir link test. The autoconf manual doesn't say anything about it doing a link test, I was only trying to find whether DIR.d_type exists :-(
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 Thomas Preud'homme changed: What|Removed |Added CC||thopre01 at gcc dot gnu.org --- Comment #8 from Thomas Preud'homme --- (In reply to Christophe Lyon from comment #6) > Looking at libstdc++'s config.log, I noticed that GCC_NO_EXECUTABLES is set > because the default GCC link command fails on aarch64-none-elf and > arm-none-eabi --with-mode=thumb because librdimon.a is not used by default. GCC_NO_EXECUTABLES is set whenever cross-compilation is done (see around line 55 in libstdc++-v3/configure.ac). This is because in such a case host headers cannot be used. > > Could it be that this opendir test is the first link test in libstc++'s > configure for those targets? (And thus that the above problem was unnoticed > for months?) Not months, just a few days. The change that introduced this issue is the addition of AC_STRUCT_DIRENT_D_TYPE in libstdc++-v3/configure.ac as part of @222654. Commenting this directive allows the build to work.
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #7 from Christophe Lyon --- Setting LDFLAGS_FOR_TARGET=-specs=rdimon.specs works for me for aarch64-none-elf. Is it expected that we have to use such settings for the build to succeed?
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #6 from Christophe Lyon --- Looking at libstdc++'s config.log, I noticed that GCC_NO_EXECUTABLES is set because the default GCC link command fails on aarch64-none-elf and arm-none-eabi --with-mode=thumb because librdimon.a is not used by default. Could it be that this opendir test is the first link test in libstc++'s configure for those targets? (And thus that the above problem was unnoticed for months?)
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #5 from kugan at gcc dot gnu.org --- For aarch64-none-elf it fails during. 01:53:39 checking for dirent.h that defines DIR... no 01:53:39 checking for sys/ndir.h that defines DIR... no 01:53:39 checking for sys/dir.h that defines DIR... no 01:53:39 checking for ndir.h that defines DIR... no 01:53:39 checking for library containing opendir... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES. 01:53:39 Makefile:10143: recipe for target 'configure-target-libstdc++-v3' failed 01:53:39 make[1]: *** [configure-target-libstdc++-v3] Error 1 this error comes from (in libstdc++-v3/configure.ac which was not present in 4.9 branch) This comes from: # For Filesystem TS. AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) AC_STRUCT_DIRENT_D_TYPE GLIBCXX_ENABLE_FILESYSTEM_TS GLIBCXX_CHECK_FILESYSTEM_DEPS According to the documentation: — Macro: AC_STRUCT_DIRENT_D_TYPE Perform all the actions of AC_HEADER_DIRENT (see Particular Headers). Then, if struct dirent contains a d_type member, define HAVE_STRUCT_DIRENT_D_TYPE. and: Macro: AC_HEADER_DIRENT Check for the following header files. For the first one that is found and defines `DIR', define the listed C preprocessor macro: `dirent.h' HAVE_DIRENT_H `sys/ndir.h'HAVE_SYS_NDIR_H `sys/dir.h' HAVE_SYS_DIR_H `ndir.h'HAVE_NDIR_H Is libstdc++-v3 supposed to ignore this or should newlib supposed to have this defined in the appropriate header?
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #4 from Andreas Schwab --- What collect2 is looking for is configured during build, see the gcc/collect-ld script in the build directory.
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 --- Comment #3 from chrbr at gcc dot gnu.org --- having ld in the $(prefix)/$(triplet)/bin fixes the issue. it seems that collect2 doesn't look for $(prefix)/bin/$(triplet)-ld as before
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 clyon at gcc dot gnu.org changed: What|Removed |Added CC||clyon at gcc dot gnu.org --- Comment #2 from clyon at gcc dot gnu.org --- Same error for aarch64*elf targets.
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 chrbr at gcc dot gnu.org changed: What|Removed |Added CC||chrbr at gcc dot gnu.org --- Comment #1 from chrbr at gcc dot gnu.org --- same error building arm-none-eabi multilibs checking for library containing opendir... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES. make[3]: *** [configure-target-libstdc++-v3] Error 1
[Bug libstdc++/66018] opendir configure test not working when GCC_NO_EXECUTABLES
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66018 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2015-05-05 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org Ever confirmed|0 |1
