设置全局gcc默认搜索路径

跑步的时候

arm-none-linux-gnueabi-gcc -print-search-dirs | grep libraries | sed 's/:/\n/g'

我得到以下输出：

libraries
 =/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/
/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib/arm-none-linux-gnueabi/4.4.1/
/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib/
/opt/codesourcery/arm-none-linux-gnueabi/libc/lib/arm-none-linux-gnueabi/4.4.1/
/opt/codesourcery/arm-none-linux-gnueabi/libc/lib/
/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/arm-none-linux-gnueabi/4.4.1/
/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/

当交叉编译一些包时，它会使我的生活更容易附加到这些路径 . 我知道-L选项，我想使用它，但许多软件包在交叉编译时不尊重它，而且使用它与代码源会导致问题 . （有关详细信息，请参阅本文末尾） . 基本上我有一个完整的目录树，其中包含编译包所需的所有文件，我想将该目录树添加到默认搜索路径中 . 例如，-print-search-dirs也将输出类似于以下内容的路径：

/target/usr/lib
/target/lib

除了已经列出的路径 . 我不是在寻找一个具有代码性的特定答案，因为我有几个可以使用的工具链 .

For those who are curious, here is the error from a codesourcery installation:

arm-none-linux-gnueabi-gcc test.c

作品

arm-none-linux-gnueabi-gcc -L/usr/arm-unknown-linux-gnueabi/usr/lib test.c

失败了：

/lib/libc.so.6: file not recognized: File format not recognized
collect2: ld returned 1 exit status

显然它正在 grab 主机的libc . 我已经看到这种情况发生在一个以上的工具链上，但不是全部 .

In response to a comment: 这是输出

arm-none-linux-gnueabi-gcc -L/usr/arm-unknown-linux-gnueabi/usr/lib test.c -v -Wl,-verbose

Using built-in specs.
Target: arm-none-linux-gnueabi
Configured with: /scratch/julian/2010q1-release-linux-lite/src/gcc-4.4-2010q1/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=arm-none-linux-gnueabi --enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --enable-extra-sgxxlite-multilibs --with-arch=armv5te --with-gnu-as --with-gnu-ld --with-specs='%{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables} %{O2:%{!fno-remove-local-statics: -fremove-local-statics}} %{O*:%{O|O0|O1|O2|Os:;:%{!fno-remove-local-statics: -fremove-local-statics}}}' --enable-languages=c,c++ --enable-shared --disable-lto --enable-symvers=gnu --enable-__cxa_atexit --with-pkgversion='Sourcery G++ Lite 2010q1-202' --with-bugurl=https://support.codesourcery.com/GNUToolchain/ --disable-nls --prefix=/opt/codesourcery --with-sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc --with-build-sysroot=/scratch/julian/2010q1-release-linux-lite/install/arm-none-linux-gnueabi/libc --with-gmp=/scratch/julian/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-mpfr=/scratch/julian/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-ppl=/scratch/julian/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-cloog=/scratch/julian/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --disable-libgomp --enable-poison-system-directories --with-build-time-tools=/scratch/julian/2010q1-release-linux-lite/install/arm-none-linux-gnueabi/bin --with-build-time-tools=/scratch/julian/2010q1-release-linux-lite/install/arm-none-linux-gnueabi/bin
Thread model: posix
gcc version 4.4.1 (Sourcery G++ Lite 2010q1-202) 
COLLECT_GCC_OPTIONS='-L/usr/arm-unknown-linux-gnueabi/usr/lib' '-v' '-march=armv5te' '-funwind-tables'
 /opt/codesourcery/libexec/gcc/arm-none-linux-gnueabi/4.4.1/cc1 -quiet -v test.c -quiet -dumpbase test.c -march=armv5te -auxbase test -version -funwind-tables -o /tmp/ccaDSo09.s
ignoring nonexistent directory "/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/local/include"
#include "..." search starts here:
#include  search starts here:
 /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/include
 /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/include-fixed
 /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/include
 /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/include
End of search list.
GNU C (Sourcery G++ Lite 2010q1-202) version 4.4.1 (arm-none-linux-gnueabi)
        compiled by GNU C version 4.3.2, GMP version 4.3.1, MPFR version 2.4.2.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 250bf78701f747da89e730786c466148
COLLECT_GCC_OPTIONS='-L/usr/arm-unknown-linux-gnueabi/usr/lib' '-v' '-march=armv5te' '-funwind-tables'
 /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/bin/as -v -march=armv5te -meabi=5 -o /tmp/ccQTJKJd.o /tmp/ccaDSo09.s
GNU assembler version 2.19.51 (arm-none-linux-gnueabi) using BFD version (Sourcery G++ Lite 2010q1-202) 2.19.51.20090709
COMPILER_PATH=/opt/codesourcery/libexec/gcc/arm-none-linux-gnueabi/4.4.1/:/opt/codesourcery/libexec/gcc/arm-none-linux-gnueabi/4.4.1/:/opt/codesourcery/libexec/gcc/arm-none-linux-gnueabi/:/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/:/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/:/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/bin/
LIBRARY_PATH=/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/:/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib/:/opt/codesourcery/arm-none-linux-gnueabi/libc/lib/:/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/
COLLECT_GCC_OPTIONS='-L/usr/arm-unknown-linux-gnueabi/usr/lib' '-v' '-march=armv5te' '-funwind-tables'
 /opt/codesourcery/libexec/gcc/arm-none-linux-gnueabi/4.4.1/collect2 --sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc --eh-frame-hdr -dynamic-linker /lib/ld-linux.so.3 -X -m armelf_linux_eabi /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crt1.o /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crti.o /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/crtbegin.o -L/usr/arm-unknown-linux-gnueabi/usr/lib -L/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1 -L/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib -L/opt/codesourcery/arm-none-linux-gnueabi/libc/lib -L/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib /tmp/ccQTJKJd.o -verbose -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/crtend.o /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crtn.o
GNU ld (Sourcery G++ Lite 2010q1-202) 2.19.51.20090709
  Supported emulations:
   armelf_linux_eabi
   armelfb_linux_eabi
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
              "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
SECTIONS
{
  /* Read-only sections, merged into text segment: */
  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x00008000)); . = SEGMENT_START("text-segment", 0x00008000) + SIZEOF_HEADERS;
  .interp         : { *(.interp) }
  .note.gnu.build-id : { *(.note.gnu.build-id) }
  .hash           : { *(.hash) }
  .gnu.hash       : { *(.gnu.hash) }
  .dynsym         : { *(.dynsym) }
  .dynstr         : { *(.dynstr) }
  .gnu.version    : { *(.gnu.version) }
  .gnu.version_d  : { *(.gnu.version_d) }
  .gnu.version_r  : { *(.gnu.version_r) }
  .rel.dyn        :
    {
      *(.rel.init)
      *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
      *(.rel.fini)
      *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
      *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
      *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
      *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
      *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
      *(.rel.ctors)
      *(.rel.dtors)
      *(.rel.got)
      *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
      *(.rel.ifunc)
    }
  .rela.dyn       :
    {
      *(.rela.init)
      *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
      *(.rela.fini)
      *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
      *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
      *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
      *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
      *(.rela.ctors)
      *(.rela.dtors)
      *(.rela.got)
      *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
      *(.rela.ifunc)
    }
  .rel.plt        :
    {
      *(.rel.plt)
      PROVIDE_HIDDEN (__rel_iplt_start = .);
      *(.rel.iplt)
      PROVIDE_HIDDEN (__rel_iplt_end = .);
    }
  .rela.plt       :
    {
      *(.rela.plt)
      PROVIDE_HIDDEN (__rela_iplt_start = .);
      *(.rela.iplt)
      PROVIDE_HIDDEN (__rela_iplt_end = .);
    }
  .init           :
  {
    KEEP (*(.init))
  } =0
  .plt            : { *(.plt) *(.iplt)}
  .text           :
  {
    *(.text .stub .text.* .gnu.linkonce.t.*)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    *(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
  } =0
  .fini           :
  {
    KEEP (*(.fini))
  } =0
  PROVIDE (__etext = .);
  PROVIDE (_etext = .);
  PROVIDE (etext = .);
  .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
  .rodata1        : { *(.rodata1) }
  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) }
   PROVIDE_HIDDEN (__exidx_start = .);
  .ARM.exidx   : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) }
   PROVIDE_HIDDEN (__exidx_end = .);
  .eh_frame_hdr : { *(.eh_frame_hdr) }
  .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
  .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
  /* Adjust the address for the data segment.  We want to adjust up to
     the same address within the page on the next page up.  */
  . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
  /* Exception handling  */
  .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
  .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
  /* Thread Local Storage sections  */
  .tdata          : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
  .tbss           : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
  .preinit_array     :
  {
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array))
    PROVIDE_HIDDEN (__preinit_array_end = .);
  }
  .init_array     :
  {
     PROVIDE_HIDDEN (__init_array_start = .);
     KEEP (*(SORT(.init_array.*)))
     KEEP (*(.init_array))
     PROVIDE_HIDDEN (__init_array_end = .);
  }
  .fini_array     :
  {
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array))
    PROVIDE_HIDDEN (__fini_array_end = .);
  }
  .ctors          :
  {
    /* gcc uses crtbegin.o to find the start of
       the constructors, so we make sure it is
       first.  Because this is a wildcard, it
       doesn't matter if the user does not
       actually link against crtbegin.o; the
       linker won't look for a file to match a
       wildcard.  The wildcard also means that it
       doesn't matter which directory crtbegin.o
       is in.  */
    KEEP (*crtbegin.o(.ctors))
    KEEP (*crtbegin?.o(.ctors))
    /* We don't want to include the .ctor section from
       the crtend.o file until after the sorted ctors.
       The .ctor section from the crtend file contains the
       end of ctors marker and it must be last */
    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*(.ctors))
  }
  .dtors          :
  {
    KEEP (*crtbegin.o(.dtors))
    KEEP (*crtbegin?.o(.dtors))
    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*(.dtors))
  }
  .jcr            : { KEEP (*(.jcr)) }
  .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
  .dynamic        : { *(.dynamic) }
  . = DATA_SEGMENT_RELRO_END (0, .);
  .got            : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }
  .data           :
  {
    __data_start = . ;
    *(.data .data.* .gnu.linkonce.d.*)
    SORT(CONSTRUCTORS)
  }
  .data1          : { *(.data1) }
  _edata = .; PROVIDE (edata = .);
  __bss_start = .;
  __bss_start__ = .;
  .bss            :
  {
   *(.dynbss)
   *(.bss .bss.* .gnu.linkonce.b.*)
   *(COMMON)
   /* Align here to ensure that the .bss section occupies space up to
      _end.  Align after .bss to ensure correct alignment even if the
      .bss section disappears because there are no input sections.
      FIXME: Why do we need it? When there is no .bss section, we don't
      pad the .data section.  */
   . = ALIGN(. != 0 ? 32 / 8 : 1);
  }
  _bss_end__ = . ; __bss_end__ = . ;
  . = ALIGN(32 / 8);
  . = ALIGN(32 / 8);
  __end__ = . ;
  _end = .; PROVIDE (end = .);
  . = DATA_SEGMENT_END (.);
  /* Stabs debugging sections.  */
  .stab          0 : { *(.stab) }
  .stabstr       0 : { *(.stabstr) }
  .stab.excl     0 : { *(.stab.excl) }
  .stab.exclstr  0 : { *(.stab.exclstr) }
  .stab.index    0 : { *(.stab.index) }
  .stab.indexstr 0 : { *(.stab.indexstr) }
  .comment       0 : { *(.comment) }
  /* DWARF debug sections.
     Symbols in the DWARF debugging sections are relative to the beginning
     of the section so we begin them at 0.  */
  /* DWARF 1 */
  .debug          0 : { *(.debug) }
  .line           0 : { *(.line) }
  /* GNU DWARF 1 extensions */
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_sfnames  0 : { *(.debug_sfnames) }
  /* DWARF 1.1 and DWARF 2 */
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }
  /* DWARF 2 */
  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
  .debug_abbrev   0 : { *(.debug_abbrev) }
  .debug_line     0 : { *(.debug_line) }
  .debug_frame    0 : { *(.debug_frame) }
  .debug_str      0 : { *(.debug_str) }
  .debug_loc      0 : { *(.debug_loc) }
  .debug_macinfo  0 : { *(.debug_macinfo) }
  /* SGI/MIPS DWARF 2 extensions */
  .debug_weaknames 0 : { *(.debug_weaknames) }
  .debug_funcnames 0 : { *(.debug_funcnames) }
  .debug_typenames 0 : { *(.debug_typenames) }
  .debug_varnames  0 : { *(.debug_varnames) }
  /* DWARF 3 */
  .debug_pubtypes 0 : { *(.debug_pubtypes) }
  .debug_ranges   0 : { *(.debug_ranges) }
  .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
  /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
}


==================================================
attempt to open /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crt1.o succeeded
/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crt1.o
attempt to open /opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crti.o succeeded
/opt/codesourcery/arm-none-linux-gnueabi/libc/usr/lib/crti.o
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/crtbegin.o succeeded
/opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/crtbegin.o
attempt to open /tmp/ccQTJKJd.o succeeded
/tmp/ccQTJKJd.o
attempt to open /usr/arm-unknown-linux-gnueabi/usr/lib/libgcc.so failed
attempt to open /usr/arm-unknown-linux-gnueabi/usr/lib/libgcc.a failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/libgcc.so failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/libgcc.a succeeded
attempt to open /usr/arm-unknown-linux-gnueabi/usr/lib/libgcc_s.so failed
attempt to open /usr/arm-unknown-linux-gnueabi/usr/lib/libgcc_s.a failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/libgcc_s.so failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/libgcc_s.a failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib/libgcc_s.so failed
attempt to open /opt/codesourcery/lib/gcc/arm-none-linux-gnueabi/4.4.1/../../../../arm-none-linux-gnueabi/lib/libgcc_s.a failed
attempt to open /opt/codesourcery/arm-none-linux-gnueabi/libc/lib/libgcc_s.so succeeded
-lgcc_s (/opt/codesourcery/arm-none-linux-gnueabi/libc/lib/libgcc_s.so)
attempt to open /usr/arm-unknown-linux-gnueabi/usr/lib/libc.so succeeded
opened script file /usr/arm-unknown-linux-gnueabi/usr/lib/libc.so
opened script file /usr/arm-unknown-linux-gnueabi/usr/lib/libc.so
attempt to open /lib/libc.so.6 succeeded
opened script file /lib/libc.so.6
/lib/libc.so.6: file not recognized: File format not recognized
collect2: ld returned 1 exit status