The configuration of any non-masked qemu version in the portage stops with the error: ERROR ERROR: User requested feature linux AIO ERROR: configure was not able to find it ERROR In the config.log I found the following 2 errors: x86_64-pc-linux-gnu-gcc -fPIE -DPIE -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -I/usr/include/libpng15 -o /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-19434-13482-2971.exe /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-29680-13482-11925.c -Wl,-z,relro -Wl,-z,now -pie -m64 -fno-use-linker-plugin /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/ccyM8HWo.o: In function `main': qemu-conf-29680-13482-11925.c:(.text+0x66): undefined reference to `pthread_create' collect2: ld returned 1 exit status x86_64-pc-linux-gnu-gcc -fPIE -DPIE -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -I/usr/include/libpng15 -o /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-19434-13482-2971.exe /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-29680-13482-11925.c -Wl,-z,relro -Wl,-z,now -pie -m64 -fno-use-linker-plugin -pthread x86_64-pc-linux-gnu-gcc -fPIE -DPIE -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -I/usr/include/libpng15 -o /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-19434-13482-2971.exe /tmp/portage/app-emulation/qemu-1.2.2-r3/temp/qemu-conf-29680-13482-11925.c -Wl,-z,relro -Wl,-z,now -pie -m64 -fno-use-linker-plugin -laio /lib64/libaio.so.1: undefined reference to `io_getevents' collect2: ld returned 1 exit status Reproducible: Always
1) Please post your `emerge --info' output in a comment. 2) Please attach the entire build log to this bug report.
Created attachment 340600 [details] my emerge --info
Created attachment 340602 [details] build.log
Created attachment 340604 [details] work/qemu-kvm-1.2.0/softmmu-build/config.log
Disabling aio useflag allows me to build qemu.
The occurrence of -fno-use-linker-plugin in the config.log is interesting... Did you build libaio with experimental flags like -fLTO or -fuse-linker-plugin? See bug #453938 for more information.
(In reply to comment #6) > The occurrence of -fno-use-linker-plugin in the config.log is interesting... > > Did you build libaio with experimental flags like -fLTO or > -fuse-linker-plugin? > > See bug #453938 for more information. Yes, this is the case. Sorry for bothering you with this problem.
For some reason unknown to me, a bunch of symbols are missing for libaio when its built with -fLTO.
*** Bug 530724 has been marked as a duplicate of this bug. ***
