我正在尝试在Clear Linux上安装glibc，并且调试困难（甚至无法调试许多makefile中的哪个）。 我之前的尝试是在以下两个线程中进行的： How do I build into a specified directory using the "prefix" option of configure? Errors building glibc: what is wrong with the make/confgure files?
所以现在我的问题是，当我运行make时，构建停止于：
-I../sysdeps/nptl -I../sysdeps/pthread -I../sysdeps/gnu -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64 -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/x86_64/64 -I../sysdeps/x86_64/fpu/multiarch -I../sysdeps/x86_64/fpu -I../sysdeps/x86/fpu/include -I../sysdeps/x86/fpu -I../sysdeps/x86_64/multiarch -I../sysdeps/x86_64 -I../sysdeps/x86 -I../sysdeps/ieee754/float128 -I../sysdeps/ieee754/ldbl-96/include -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64/wordsize-64 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I. -D_LIBC_REENTRANT -include /home/james/Downloads/glibc-build/libc-modules.h -DMODULE_NAME=libc -include ../include/libc-symbols.h -DTOP_NAMESPACE=glibc -I../soft-fp -o /home/james/Downloads/glibc-build/math/s_modfl.o -MD -MP -MF /home/james/Downloads/glibc-build/math/s_modfl.o.dt -MT /home/james/Downloads/glibc-build/math/s_modfl.o
cc1: error: -fassociative-math disabled; other options take precedence [-Werror]
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:791: /home/james/Downloads/glibc-build/math/s_modfl.o] Error 1
make[2]: Leaving directory '/home/james/Downloads/glibc/math'
make[1]: *** [Makefile:215: math/subdir_lib] Error 2
make[1]: Leaving directory '/home/james/Downloads/glibc'
make: *** [Makefile:9: all] Error 2
我怀疑这可能是一个线索，但这有点困扰我。 associative-math with GCC
我还猜测，makefile中的后续错误是关联数学出错的结果。
修改 按照要求，我运行
james@clr ~/Downloads/glibc-build $ make -j
这是输出的结尾
-I../sysdeps/ieee754/ldbl-96/include -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64/wordsize-64 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I. -D_LIBC_REENTRANT -include /home/james/Downloads/glibc-build/libc-modules.h -DMODULE_NAME=libc -include ../include/libc-symbols.h -DPIC -DSHARED -DTOP_NAMESPACE=glibc -I../soft-fp -DASSEMBLER -g -Werror=undef -Wa,--noexecstack -o /home/james/Downloads/glibc-build/math/s_signbit.os -MD -MP -MF /home/james/Downloads/glibc-build/math/s_signbit.os.dt -MT /home/james/Downloads/glibc-build/math/s_signbit.os
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:791: /home/james/Downloads/glibc-build/math/s_modfl.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:825: /home/james/Downloads/glibc-build/math/s_modf.o] Error 1
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:893: /home/james/Downloads/glibc-build/math/s_modff.o] Error 1
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:757: /home/james/Downloads/glibc-build/math/s_modff128.o] Error 1
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:807: /home/james/Downloads/glibc-build/math/s_modfl.os] Error 1
cc1: all warnings being treated as errors
make[2]: *** [/home/james/Downloads/glibc-build/sysd-rules:841: /home/james/Downloads/glibc-build/math/s_modf.os] Error 1
make[2]: Leaving directory '/home/james/Downloads/glibc/math'
make[1]: *** [Makefile:215: math/subdir_lib] Error 2
make[1]: Leaving directory '/home/james/Downloads/glibc'
make: *** [Makefile:9: all] Error 2
edit 2：更多有关Basile的评论的信息： 我需要glibc来运行Phoronix Test Suite的某些模块，将来我可能会需要它来构建R的库。据我所知，Clear Linux中不包含它（至少PTS认为我没有。安装它），但在可用的捆绑包列表中看不到它。 版本：
james@clr ~/Downloads $ uname -r
4.17.1-582.native
james@clr ~/Downloads $ gcc --version
gcc (Clear Linux OS for Intel Architecture) 8.1.1 20180514
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Configure commands
james@clr ~/Downloads $ git clone git://sourceware.org/git/glibc.git
james@clr ~/Downloads $ cd glibc
james@clr ~/Downloads/glibc $ git checkout --track -b local_glibc-2.27 origin/release/2.27/master
Branch 'local_glibc-2.27' set up to track remote branch 'release/2.27/master' from 'origin'.
Switched to a new branch 'local_glibc-2.27'
james@clr ~/Downloads/glibc $ mkdir /home/james/Downloads/glibc-build/
james@clr ~/Downloads/glibc $ cd /home/james/Downloads/glibc-build/
james@clr ~/Downloads/glibc-build $ ~/Downloads/glibc/configure --prefix=/home/james/Downloads/glibc-build
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for gcc... gcc
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for readelf... readelf
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking whether g++ can link programs... yes
checking for sysdeps preconfigure fragments... aarch64 alpha arm hppa i386 m68k microblaze mips nios2 powerpc riscv s390 sh sparc tile x86_64 checking whether gcc compiles in -mx32 mode by default... no
checking for use of fpu sysdeps directories... yes
checking for -fstack-protector... yes
checking for -fstack-protector-strong... yes
checking for -fstack-protector-all... yes
checking for assembler and linker STT_GNU_IFUNC support... yes
checking for gcc attribute ifunc support... yes
checking if compiler warns about alias for function with incompatible types... yes
checking sysdep dirs... sysdeps/unix/sysv/linux/x86_64/64 sysdeps/unix/sysv/linux/x86_64 sysdeps/unix/sysv/linux/x86 sysdeps/x86/nptl sysdeps/unix/sysv/linux/wordsize-64 sysdeps/x86_64/nptl sysdeps/unix/sysv/linux sysdeps/nptl sysdeps/pthread sysdeps/gnu sysdeps/unix/inet sysdeps/unix/sysv sysdeps/unix/x86_64 sysdeps/unix sysdeps/posix sysdeps/x86_64/64 sysdeps/x86_64/fpu/multiarch sysdeps/x86_64/fpu sysdeps/x86/fpu sysdeps/x86_64/multiarch sysdeps/x86_64 sysdeps/x86 sysdeps/ieee754/float128 sysdeps/ieee754/ldbl-96 sysdeps/ieee754/dbl-64/wordsize-64 sysdeps/ieee754/dbl-64 sysdeps/ieee754/flt-32 sysdeps/wordsize-64 sysdeps/ieee754 sysdeps/generic
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking whether as is GNU as... yes
checking whether ld is GNU ld... yes
checking for as... as
checking version of as... 2.30, ok
checking for ld... ld
checking version of ld... 2.30, ok
checking for gnumake... no
checking for gmake... no
checking for make... make
checking version of make... 4.2.1, ok
checking for gnumsgfmt... no
checking for gmsgfmt... no
checking for msgfmt... msgfmt
checking version of msgfmt... 0.19.8.1, ok
checking for makeinfo... makeinfo
checking version of makeinfo... 6.5, ok
checking for sed... sed
checking version of sed... 4.5, ok
checking for gawk... gawk
checking version of gawk... 4.2.1, ok
checking for bison... bison
checking version of bison... 3.0.5, ok
checking if gcc is sufficient to build libc... yes
checking for nm... gcc-nm
checking for python3... python3
checking LD_LIBRARY_PATH variable... ok
checking for bash... /usr/bin/bash
checking for perl... /usr/bin/perl
checking for install-info... /usr/bin/install-info
checking for .set assembler directive... yes
checking linker support for protected data symbol... yes
checking linker support for INSERT in linker script... yes
checking for broken __attribute__((alias()))... no
checking whether to put _rtld_local into .sdata section... no
checking whether to use .ctors/.dtors header and trailer... no
checking for libunwind-support in compiler... no
checking whether --noexecstack is desirable for .S files... yes
checking for -z combreloc... yes
checking for linker that supports -z execstack... yes
checking for linker that supports --no-dynamic-linker... yes
checking for -static-pie... yes
checking for -fpie... yes
checking for --hash-style option... yes
checking for sufficient default -shared layout... no
checking for GLOB_DAT reloc... yes
checking linker output format... elf64-x86-64
checking for -fno-toplevel-reorder -fno-section-anchors... yes
checking for -mtls-dialect=gnu2... yes
checking whether cc puts quotes around section names... no
checking for __builtin_memset... no
checking for redirection of built-in functions... yes
checking for compiler option to disable generation of FMA instructions... -ffp-contract=off
checking if gcc accepts -fno-tree-loop-distribute-patterns with __attribute__ ((__optimize__))... yes
checking for libgd... yes
checking for is_selinux_enabled in -lselinux... no
checking for _FORTIFY_SOURCE predefine... yes
checking whether the linker provides working __ehdr_start... yes
checking for __builtin_trap with no external dependencies... yes
checking whether the C++ compiler supports thread_local... yes
running configure fragment for sysdeps/unix/sysv/linux/x86_64/64
running configure fragment for sysdeps/unix/sysv/linux/x86_64
running configure fragment for sysdeps/unix/sysv/linux
checking installed Linux kernel header files... 3.2.0 or later
checking for kernel header at least 3.2.0... ok
checking for symlinks in /home/james/Downloads/glibc-build/include... ok
running configure fragment for sysdeps/gnu
running configure fragment for sysdeps/unix/inet
running configure fragment for sysdeps/x86_64
checking for AVX512DQ support in assembler... yes
checking for AVX512 support... yes
checking for Intel MPX support... yes
checking whether -fPIC is default... no
checking whether -fPIE is default... no
configure: creating ./config.status
config.status: creating config.make
config.status: creating Makefile
config.status: creating config.h
config.status: executing default commands
编辑3：make的FULL输出太长而无法包含，因此我将其放在pastebin上： https://pastebin.com/H3yGC5aj
答案 0 :(得分：3)
您构成的编译器命令行包含以下标志：
-fassociative-math -fasynchronous-unwind-tables -feliminate-unused-debug-types -fexceptions -ffat-lto-objects -fmerge-all-constants -fno-semantic-interposition -fno-signed-zeros -fno-stack-protector -fno-trapping-math -frounding-math -fstack-protector -ftree-loop-distribute-patterns
但是，-fassociative-math是不安全的数学优化方法之一，不能使用它们构建glibc，因为使用这种优化方法，数学库会产生错误的结果-正如您所发现的，某些必需的编译器标志数学库的某些部分甚至与它们不兼容。
您没有将这些标志显式传递给configure或make，因此它们很可能来自CFLAGS环境变量。您需要先取消设置，然后再调用configure和make。