configured with '--disable-shared' so lto-plugin built as static library when configuring target libgcc failed with 'liblto_plugin-0.dll not found' error I think there is something wrong with the option checking in gcc/gcc.c (line 6812) LTOPLUGINSONAME is invalid when configured with '--disable-shared' because there is no dynamic library
Try to configure with `--disable-shared --enable-shared=lto-plugin'.
What is the failure? Honza
(In reply to comment #2) > What is the failure? > > Honza when configuring target-libgcc, failed with xgcc cannot create executable config.log shows 'liblto_plugin-0.dll not found' maybe -fuse-linker-plugin option not handled correctly
> when configuring target-libgcc, > failed with xgcc cannot create executable > config.log shows 'liblto_plugin-0.dll not found' > maybe -fuse-linker-plugin option not handled correctly Yes, it seems that linker plugin handling on cygwin is not done well. Is linker plugin built for you and does the linker support it? Honza
(In reply to comment #4) > > when configuring target-libgcc, > > failed with xgcc cannot create executable > > config.log shows 'liblto_plugin-0.dll not found' > > maybe -fuse-linker-plugin option not handled correctly > > Yes, it seems that linker plugin handling on cygwin is not done well. > Is linker plugin built for you and does the linker support it? > > Honza lto and linker plugin was OK in 20110101 snapshot in which '-fuse-linker-plugin' was off by default but in rev 168594, the option becomes on by default this option causes checking LTOPLUGINSONAME in gcc/gcc.c (line 6812 around), which is not built with '--disable-shared' something is wrong either with makefile or with gcc/gcc.c
> lto and linker plugin was OK in 20110101 snapshot > in which '-fuse-linker-plugin' was off by default > but in rev 168594, the option becomes on by default Yes, I've changed the default when linker is detected to have linker support and lto-plugin is build. > > this option causes checking LTOPLUGINSONAME in gcc/gcc.c (line > 6812 around), which is not built with '--disable-shared' > > something is wrong either with makefile or with gcc/gcc.c How this worked before? On windows I would expect LTOPLUGINSONAME to point to the plugin DLL... Honza
Hi, is this dup of PR47225? I.e. is the --disable-shared the problem? Honza
Hi, I posed patch to the aforementioned PR, hopefully it will fix this one too.
dup *** This bug has been marked as a duplicate of bug 47225 ***