title: "Multiple definition of" "first defined here" on GCC 10.2.1 but not GCC 8.3.0
body: <p>I've had a bit of a look around Stackoverflow and the wider Internet and identified that the most common causes for this error are conflation of <em>declaration</em> (<code>int var = 1;</code>) and <em>definition</em> (<code>int var;</code>), and including <code>.c</code> files from <code>.h</code> files.</p>
  <p>My small project I just split from one file into several is not doing any of these things. I'm <em>very</em> confused.</p>
  <p>I made a copy of the project and deleted all the code in the copy (which was fun) until I reached here:</p>
  <h4>main.c</h4>
  <pre class="lang-c prettyprint-override"><code>#include &quot;a.h&quot;
  
  int main() {
      
  }
  </code></pre>
  <h4>a.h</h4>
  <pre class="lang-c prettyprint-override"><code>#ifndef A_H
  #define A_H
  
  int test;
  
  #endif
  </code></pre>
  <h4>a.c</h4>
  <pre class="lang-c prettyprint-override"><code>#include &quot;a.h&quot;
  </code></pre>
  <p>Pretty much as canonical as it gets, right? And yet...</p>
  <pre><code>$ rm *.o; gcc -g -c a.c; gcc -g -c main.c; gcc -o main main.o a.o
  /usr/bin/ld: a.o:/.../a.h:5: multiple definition of `test'; main.o:/.../a.h:5: first defined here
  collect2: error: ld returned 1 exit status
  </code></pre>
  <p>WAT :(</p>
  <p>It was around this time I started questioning my configuration and tried another machine, accessing the exact same files over NFS.</p>
  <pre><code>$ rm *.o; gcc -g -c a.c; gcc -g -c main.c; gcc -o main main.o a.o
  $ ./main
  $ echo $?
  0
  </code></pre>
  <p>Oooh no. What did I break on the first machine...</p>
  <p>Hopefully my issue is rather that Something Quietly Changed between <strong>GCC 8.3.0 (working)</strong> and <strong>GCC 10.2.1 (failing)</strong>? Perhaps the newer version of GCC is defaulting to a newer C standard or something, which specifies different behavior in this area?</p>
  <p>Alternatively perhaps it's configuration-related (this is all stock Debian). Here's the output of <code>gcc -dumpspecs</code> for both versions:</p>
  <p>8.3.0:</p>
  <p><div class="snippet" data-lang="js" data-hide="true" data-console="false" data-babel="false">
  <div class="snippet-code snippet-currently-hidden">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>$ gcc --version
  gcc (Debian 8.3.0-6) 8.3.0
  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.
  
  $ gcc -dumpspecs
  *asm:
  %{m16|m32:--32}  %{m16|m32|mx32:;:--64}  %{mx32:--x32}  %{msse2avx:%{!mavx:-msse2avx}}
  
  *asm_debug:
  %{%:debug-level-gt(0):%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}} %{fdebug-prefix-map=*:--debug-prefix-map %*}
  
  *asm_final:
  %{gsplit-dwarf: 
     objcopy --extract-dwo     %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O}      %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} 
     objcopy --strip-dwo       %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O}     }
  
  *asm_options:
  %{-target-help:%:print-asm-header()} %{v} %{w:-W} %{I*}  %{gz|gz=zlib:--compress-debug-sections=zlib} %{gz=none:--compress-debug-sections=none} %{gz=zlib-gnu:--compress-debug-sections=zlib-gnu} %a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}
  
  *invoke_as:
  %{!fwpa*:   %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}   %{!S:-o %|.s |
   as %(asm_options) %m.s %A }  }
  
  *cpp:
  %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
  
  *cpp_options:
  %(cpp_unique_options) %1 %{m*} %{std*&amp;ansi&amp;trigraphs} %{W*&amp;pedantic*} %{w} %{f*} %{g*:%{%:debug-level-gt(0):%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*} %{undef} %{save-temps*:-fpch-preprocess}
  
  *cpp_debug_options:
  %{d*}
  
  *cpp_unique_options:
  %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&amp;F*} %{P} %I %{MD:-MD %{!o:%b.d}%{o*:%.d%*}} %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}} %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}} %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %{H} %C %{D*&amp;U*&amp;A*} %{i*} %Z %i %{E|M|MM:%W{o*}}
  
  *trad_capable_cpp:
  cc1 -E %{traditional|traditional-cpp:-traditional-cpp}
  
  *cc1:
  %{!mandroid|tno-android-cc:%(cc1_cpu) %{profile:-p};:%(cc1_cpu) %{profile:-p} %{!mglibc:%{!muclibc:%{!mbionic: -mbionic}}} %{!fno-pic:%{!fno-PIC:%{!fpic:%{!fPIC: -fPIC}}}}}
  
  *cc1_options:
  %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*} %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)}  %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}}  %{g*} %{O*} %{W*&amp;pedantic*} %{w} %{std*&amp;ansi&amp;trigraphs} %{v:-version} %{pg:-p} %{p} %{f*} %{undef} %{Qn:-fno-ident} %{Qy:} %{-help:--help} %{-target-help:--target-help} %{-version:--version} %{-help=*:--help=%*} %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}} %{fsyntax-only:-o %j} %{-param*} %{coverage:-fprofile-arcs -ftest-coverage} %{fprofile-arcs|fprofile-generate*|coverage:   %{!fprofile-update=single:     %{pthread:-fprofile-update=prefer-atomic}}}
  
  *cc1plus:
  
  
  *link_gcc_c_sequence:
  %{static|static-pie:--start-group} %G %L    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}
  
  *link_ssp:
  %{fstack-protector|fstack-protector-all|fstack-protector-strong|fstack-protector-explicit:}
  
  *endfile:
  %{!mandroid|tno-android-ld:%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}    %{mpc32:crtprec32.o%s}    %{mpc64:crtprec64.o%s}    %{mpc80:crtprec80.o%s} %{fvtable-verify=none:%s;      fvtable-verify=preinit:vtv_end_preinit.o%s;      fvtable-verify=std:vtv_end.o%s}    %{static:crtend.o%s;      shared|static-pie|!no-pie:crtendS.o%s;      :crtend.o%s}    crtn.o%s    %{fopenacc|fopenmp:crtoffloadend%O%s};:%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}    %{mpc32:crtprec32.o%s}    %{mpc64:crtprec64.o%s}    %{mpc80:crtprec80.o%s} %{shared: crtend_so%O%s;: crtend_android%O%s}}
  
  *link:
  %{!r:--build-id} %{!static|static-pie:--eh-frame-hdr} %{!mandroid|tno-android-ld:%{m16|m32|mx32:;:-m elf_x86_64}                    %{m16|m32:-m elf_i386}                    %{mx32:-m elf32_x86_64}   --hash-style=gnu   %{shared:-shared}   %{!shared:     %{!static:       %{!static-pie:     %{rdynamic:-export-dynamic}     %{m16|m32:-dynamic-linker %{muclibc:/lib/ld-uClibc.so.0;:%{mbionic:/system/bin/linker;:%{mmusl:/lib/ld-musl-i386.so.1;:/lib/ld-linux.so.2}}}}   %{m16|m32|mx32:;:-dynamic-linker %{muclibc:/lib/ld64-uClibc.so.0;:%{mbionic:/system/bin/linker64;:%{mmusl:/lib/ld-musl-x86_64.so.1;:/lib64/ld-linux-x86-64.so.2}}}}       %{mx32:-dynamic-linker %{muclibc:/lib/ldx32-uClibc.so.0;:%{mbionic:/system/bin/linkerx32;:%{mmusl:/lib/ld-musl-x32.so.1;:/libx32/ld-linux-x32.so.2}}}}}}     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}};:%{m16|m32|mx32:;:-m elf_x86_64}                    %{m16|m32:-m elf_i386}                    %{mx32:-m elf32_x86_64}   --hash-style=gnu   %{shared:-shared}   %{!shared:     %{!static:       %{!static-pie:        %{rdynamic:-export-dynamic}     %{m16|m32:-dynamic-linker %{muclibc:/lib/ld-uClibc.so.0;:%{mbionic:/system/bin/linker;:%{mmusl:/lib/ld-musl-i386.so.1;:/lib/ld-linux.so.2}}}}   %{m16|m32|mx32:;:-dynamic-linker %{muclibc:/lib/ld64-uClibc.so.0;:%{mbionic:/system/bin/linker64;:%{mmusl:/lib/ld-musl-x86_64.so.1;:/lib64/ld-linux-x86-64.so.2}}}}       %{mx32:-dynamic-linker %{muclibc:/lib/ldx32-uClibc.so.0;:%{mbionic:/system/bin/linkerx32;:%{mmusl:/lib/ld-musl-x32.so.1;:/libx32/ld-linux-x32.so.2}}}}}}     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}} %{shared: -Bsymbolic}}
  
  *lib:
  %{!mandroid|tno-android-ld:%{pthread:-lpthread} %{shared:-lc}    %{!shared:%{profile:-lc_p}%{!profile:-lc}};:%{shared:-lc}    %{!shared:%{profile:-lc_p}%{!profile:-lc}} %{!static: -ldl}}
  
  *link_gomp:
  
  
  *libgcc:
  %{static|static-libgcc|static-pie:-lgcc -lgcc_eh}%{!static:%{!static-libgcc:%{!static-pie:%{!shared-libgcc:-lgcc --push-state --as-needed -lgcc_s --pop-state}%{shared-libgcc:-lgcc_s%{!shared: -lgcc}}}}}
  
  *startfile:
  %{!mandroid|tno-android-ld:%{shared:;      pg|p|profile:%{static-pie:grcrt1.o%s;:gcrt1.o%s};      static:crt1.o%s;      static-pie:rcrt1.o%s;      !no-pie:Scrt1.o%s;      :crt1.o%s}    crti.o%s    %{static:crtbeginT.o%s;      shared|static-pie|!no-pie:crtbeginS.o%s;      :crtbegin.o%s}    %{fvtable-verify=none:%s;      fvtable-verify=preinit:vtv_start_preinit.o%s;      fvtable-verify=std:vtv_start.o%s}    %{fopenacc|fopenmp:crtoffloadbegin%O%s};:%{shared: crtbegin_so%O%s;:  %{static: crtbegin_static%O%s;: crtbegin_dynamic%O%s}}}
  
  *cross_compile:
  0
  
  *version:
  8.3.0
  
  *multilib:
  . !m32 !m64 !mx32;32:../lib32:i386-linux-gnu m32 !m64 !mx32;64:../lib:x86_64-linux-gnu !m32 m64 !mx32;x32:../libx32:x86_64-linux-gnux32 !m32 !m64 mx32;
  
  *multilib_defaults:
  m64
  
  *multilib_extra:
  
  
  *multilib_matches:
  m32 m32;m64 m64;mx32 mx32;
  
  *multilib_exclusions:
  
  
  *multilib_options:
  m32/m64/mx32
  
  *multilib_reuse:
  
  
  *linker:
  collect2
  
  *linker_plugin_file:
  
  
  *lto_wrapper:
  
  
  *lto_gcc:
  
  
  *post_link:
  
  
  *link_libgcc:
  %D
  
  *md_exec_prefix:
  
  
  *md_startfile_prefix:
  
  
  *md_startfile_prefix_1:
  
  
  *startfile_prefix_spec:
  
  
  *sysroot_spec:
  --sysroot=%R
  
  *sysroot_suffix_spec:
  
  
  *sysroot_hdrs_suffix_spec:
  
  
  *self_spec:
  
  
  *cc1_cpu:
  %{march=native:%&gt;march=native %:local_cpu_detect(arch)   %{!mtune=*:%&gt;mtune=native %:local_cpu_detect(tune)}} %{mtune=native:%&gt;mtune=native %:local_cpu_detect(tune)}
  
  *link_command:
  %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:    %(linker) %{!fno-use-linker-plugin:%{!fno-lto:     -plugin %(linker_plugin_file)     -plugin-opt=%(lto_wrapper)     -plugin-opt=-fresolution=%u.res     %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}}     }}%{flto|flto=*:%&lt;fcompare-debug*}     %{flto} %{fno-lto} %{flto=*} %l %{static|shared|r:;!no-pie:-pie} %{fuse-ld=*:-fuse-ld=%*}  %{gz|gz=zlib:--compress-debug-sections=zlib} %{gz=none:--compress-debug-sections=none} %{gz=zlib-gnu:--compress-debug-sections=zlib-gnu} %X %{o*} %{e*} %{N} %{n} %{r}    %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}     %{static|no-pie|static-pie:} %{L*} %(mfwrap) %(link_libgcc) %{fvtable-verify=none:} %{fvtable-verify=std:   %e-fvtable-verify=std is not supported in this configuration} %{fvtable-verify=preinit:   %e-fvtable-verify=preinit is not supported in this configuration} %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):%{!shared:libasan_preinit%O%s} %{static-libasan:%{!shared:-Bstatic --whole-archive -lasan --no-whole-archive -Bdynamic}}%{!static-libasan:-lasan}}     %{%:sanitize(thread):%{!shared:libtsan_preinit%O%s} %{static-libtsan:%{!shared:-Bstatic --whole-archive -ltsan --no-whole-archive -Bdynamic}}%{!static-libtsan:-ltsan}}     %{%:sanitize(leak):%{!shared:liblsan_preinit%O%s} %{static-liblsan:%{!shared:-Bstatic --whole-archive -llsan --no-whole-archive -Bdynamic}}%{!static-liblsan:-llsan}}}} %o %{!nostdlib:%{!nodefaultlibs:%{mmpx:%{fcheck-pointer-bounds:    %{static:--whole-archive -lmpx --no-whole-archive %:include(libmpx.spec)%(link_libmpx)}    %{!static:%{static-libmpx:-Bstatic --whole-archive}    %{!static-libmpx:--push-state --no-as-needed} -lmpx     %{!static-libmpx:--pop-state}     %{static-libmpx:--no-whole-archive -Bdynamic %:include(libmpx.spec)%(link_libmpx)}}}}%{mmpx:%{fcheck-pointer-bounds:%{!fno-chkp-use-wrappers:    %{static:-lmpxwrappers}    %{!static:%{static-libmpxwrappers:-Bstatic}    -lmpxwrappers %{static-libmpxwrappers: -Bdynamic}}}}}}} %{mmpx:%{fcheck-pointer-bounds:%{!static:%{m16|m32|mx32:;:-z bndplt }}}}     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):        %:include(libgomp.spec)%(link_gomp)}    %{fgnu-tm:%:include(libitm.spec)%(link_itm)}    %(mflib)  %{fsplit-stack: --wrap=pthread_create}    %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} %{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address): %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}    %{static:%ecannot specify -static with -fsanitize=address}}    %{%:sanitize(thread): %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}    %{static:%ecannot specify -static with -fsanitize=thread}}    %{%:sanitize(undefined):%{static-libubsan:-Bstatic} -lubsan %{static-libubsan:-Bdynamic} %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}}    %{%:sanitize(leak): %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}}}}     %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}    %{!nostdlib:%{!nostartfiles:%E}} %{T*}  
  %(post_link) }}}}}}</code></pre>
  </div>
  </div>
  </p>
  <p>10.2.1:</p>
  <p><div class="snippet" data-lang="js" data-hide="true" data-console="false" data-babel="false">
  <div class="snippet-code snippet-currently-hidden">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>$ gcc --version
  gcc (Debian 10.2.1-6) 10.2.1 20210110
  Copyright (C) 2020 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.
  
  $ gcc -dumpspecs
  *asm:
  %{m16|m32:--32}  %{m16|m32|mx32:;:--64}  %{mx32:--x32}  %{msse2avx:%{!mavx:-msse2avx}}
  
  *asm_debug:
  %{%:debug-level-gt(0):%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}} %{fdebug-prefix-map=*:--debug-prefix-map %*}
  
  *asm_final:
  %{gsplit-dwarf: 
     objcopy --extract-dwo     %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O}      %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} 
     objcopy --strip-dwo       %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O}     }
  
  *asm_options:
  %{-target-help:%:print-asm-header()} %{v} %{w:-W} %{I*}  %{gz|gz=zlib:--compress-debug-sections=zlib} %{gz=none:--compress-debug-sections=none} %{gz=zlib-gnu:--compress-debug-sections=zlib-gnu} %a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}
  
  *invoke_as:
  %{!fwpa*:   %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}   %{!S:-o %|.s |
   as %(asm_options) %m.s %A }  }
  
  *cpp:
  %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
  
  *cpp_options:
  %(cpp_unique_options) %1 %{m*} %{std*&amp;ansi&amp;trigraphs} %{W*&amp;pedantic*} %{w} %{f*} %{g*:%{%:debug-level-gt(0):%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*} %{undef} %{save-temps*:-fpch-preprocess} %(distro_defaults)
  
  *cpp_debug_options:
  %{d*}
  
  *cpp_unique_options:
  %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&amp;F*} %{P} %I %{MD:-MD %{!o:%b.d}%{o*:%.d%*}} %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}} %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}} %{remap} %{g3|ggdb3|gstabs3|gxcoff3|gvms3:-dD} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %{H} %C %{D*&amp;U*&amp;A*} %{i*} %Z %i %{E|M|MM:%W{o*}}
  
  *trad_capable_cpp:
  cc1 -E %{traditional|traditional-cpp:-traditional-cpp}
  
  *cc1:
  %{!mandroid|tno-android-cc:%(cc1_cpu) %{profile:-p};:%(cc1_cpu) %{profile:-p} %{!mglibc:%{!muclibc:%{!mbionic: -mbionic}}} %{!fno-pic:%{!fno-PIC:%{!fpic:%{!fPIC: -fPIC}}}}}
  
  *cc1_options:
  %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*} %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)}  %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}}  %{g*} %{O*} %{W*&amp;pedantic*} %{w} %{std*&amp;ansi&amp;trigraphs} %{v:-version} %{pg:-p} %{p} %{f*} %{undef} %{Qn:-fno-ident} %{Qy:} %{-help:--help} %{-target-help:--target-help} %{-version:--version} %{-help=*:--help=%*} %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}} %{fsyntax-only:-o %j} %{-param*} %{coverage:-fprofile-arcs -ftest-coverage} %{fprofile-arcs|fprofile-generate*|coverage:   %{!fprofile-update=single:     %{pthread:-fprofile-update=prefer-atomic}}}
  
  *cc1plus:
  
  
  *link_gcc_c_sequence:
  %{static|static-pie:--start-group} %G %{!nolibc:%L}    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}
  
  *distro_defaults:
  %{!fno-asynchronous-unwind-tables:-fasynchronous-unwind-tables}
  
  *link_ssp:
  %{fstack-protector|fstack-protector-all|fstack-protector-strong|fstack-protector-explicit:}
  
  *endfile:
  %{!mandroid|tno-android-ld:%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}    %{mpc32:crtprec32.o%s}    %{mpc64:crtprec64.o%s}    %{mpc80:crtprec80.o%s} %{!static:%{fvtable-verify=none:%s;      fvtable-verify=preinit:vtv_end_preinit.o%s;      fvtable-verify=std:vtv_end.o%s}}    %{static:crtend.o%s;      shared|static-pie|!no-pie:crtendS.o%s;      :crtend.o%s} crtn.o%s %{fopenacc|fopenmp:crtoffloadend%O%s};:%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}    %{mpc32:crtprec32.o%s}    %{mpc64:crtprec64.o%s}    %{mpc80:crtprec80.o%s} %{shared: crtend_so%O%s;: crtend_android%O%s}}
  
  *link:
  %{!r:--build-id} %{!static|static-pie:--eh-frame-hdr} %{!mandroid|tno-android-ld:%{m16|m32|mx32:;:-m elf_x86_64}                    %{m16|m32:-m elf_i386}                    %{mx32:-m elf32_x86_64}   --hash-style=gnu   --as-needed   %{shared:-shared}   %{!shared:     %{!static:       %{!static-pie:       %{rdynamic:-export-dynamic}     %{m16|m32:-dynamic-linker %{muclibc:/lib/ld-uClibc.so.0;:%{mbionic:/system/bin/linker;:%{mmusl:/lib/ld-musl-i386.so.1;:/lib/ld-linux.so.2}}}}     %{m16|m32|mx32:;:-dynamic-linker %{muclibc:/lib/ld64-uClibc.so.0;:%{mbionic:/system/bin/linker64;:%{mmusl:/lib/ld-musl-x86_64.so.1;:/lib64/ld-linux-x86-64.so.2}}}}     %{mx32:-dynamic-linker %{muclibc:/lib/ldx32-uClibc.so.0;:%{mbionic:/system/bin/linkerx32;:%{mmusl:/lib/ld-musl-x32.so.1;:/libx32/ld-linux-x32.so.2}}}}}}     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}};:%{m16|m32|mx32:;:-m elf_x86_64}                    %{m16|m32:-m elf_i386}                    %{mx32:-m elf32_x86_64}   --hash-style=gnu   --as-needed   %{shared:-shared}   %{!shared:     %{!static:       %{!static-pie:  %{rdynamic:-export-dynamic}     %{m16|m32:-dynamic-linker %{muclibc:/lib/ld-uClibc.so.0;:%{mbionic:/system/bin/linker;:%{mmusl:/lib/ld-musl-i386.so.1;:/lib/ld-linux.so.2}}}}     %{m16|m32|mx32:;:-dynamic-linker %{muclibc:/lib/ld64-uClibc.so.0;:%{mbionic:/system/bin/linker64;:%{mmusl:/lib/ld-musl-x86_64.so.1;:/lib64/ld-linux-x86-64.so.2}}}}       %{mx32:-dynamic-linker %{muclibc:/lib/ldx32-uClibc.so.0;:%{mbionic:/system/bin/linkerx32;:%{mmusl:/lib/ld-musl-x32.so.1;:/libx32/ld-linux-x32.so.2}}}}}}     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}} %{shared: -Bsymbolic}}
  
  *lib:
  %{!mandroid|tno-android-ld:%{pthread:-lpthread} %{shared:-lc}    %{!shared:%{profile:-lc_p}%{!profile:-lc}};:%{shared:-lc}    %{!shared:%{profile:-lc_p}%{!profile:-lc}} %{!static: -ldl}}
  
  *link_gomp:
  
  
  *libgcc:
  %{static|static-libgcc|static-pie:-lgcc -lgcc_eh}%{!static:%{!static-libgcc:%{!static-pie:%{!shared-libgcc:-lgcc --push-state --as-needed -lgcc_s --pop-state}%{shared-libgcc:-lgcc_s%{!shared: -lgcc}}}}}
  
  *startfile:
  %{!mandroid|tno-android-ld:%{shared:;      pg|p|profile:%{static-pie:grcrt1.o%s;:gcrt1.o%s};      static:crt1.o%s;      static-pie:rcrt1.o%s;      !no-pie:Scrt1.o%s;      :crt1.o%s} crti.o%s    %{static:crtbeginT.o%s;      shared|static-pie|!no-pie:crtbeginS.o%s;      :crtbegin.o%s}    %{fvtable-verify=none:%s;      fvtable-verify=preinit:vtv_start_preinit.o%s;      fvtable-verify=std:vtv_start.o%s} %{fopenacc|fopenmp:crtoffloadbegin%O%s};:%{shared: crtbegin_so%O%s;:  %{static: crtbegin_static%O%s;: crtbegin_dynamic%O%s}}}
  
  *cross_compile:
  0
  
  *version:
  10.2.1
  
  *multilib:
  . !m32 !m64 !mx32;32:../lib32:i386-linux-gnu m32 !m64 !mx32;64:../lib:x86_64-linux-gnu !m32 m64 !mx32;x32:../libx32:x86_64-linux-gnux32 !m32 !m64 mx32;
  
  *multilib_defaults:
  m64
  
  *multilib_extra:
  
  
  *multilib_matches:
  m32 m32;m64 m64;mx32 mx32;
  
  *multilib_exclusions:
  
  
  *multilib_options:
  m32/m64/mx32
  
  *multilib_reuse:
  
  
  *linker:
  collect2
  
  *linker_plugin_file:
  
  
  *lto_wrapper:
  
  
  *lto_gcc:
  
  
  *post_link:
  
  
  *link_libgcc:
  %D
  
  *md_exec_prefix:
  
  
  *md_startfile_prefix:
  
  
  *md_startfile_prefix_1:
  
  
  *startfile_prefix_spec:
  
  
  *sysroot_spec:
  --sysroot=%R
  
  *sysroot_suffix_spec:
  
  
  *sysroot_hdrs_suffix_spec:
  
  
  *self_spec:
  
  
  *cc1_cpu:
  %{march=native:%&gt;march=native %:local_cpu_detect(arch)   %{!mtune=*:%&gt;mtune=native %:local_cpu_detect(tune)}} %{mtune=native:%&gt;mtune=native %:local_cpu_detect(tune)}
  
  *link_command:
  %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:    %(linker) %{!fno-use-linker-plugin:%{!fno-lto:     -plugin %(linker_plugin_file)     -plugin-opt=%(lto_wrapper)     -plugin-opt=-fresolution=%u.res     %{flinker-output=*:-plugin-opt=-linker-output-known}     %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}}     }}%{flto|flto=*:%&lt;fcompare-debug*}     %{flto} %{fno-lto} %{flto=*} %l %{static|shared|r:;!no-pie:-pie} %{fuse-ld=*:-fuse-ld=%*}  %{gz|gz=zlib:--compress-debug-sections=zlib} %{gz=none:--compress-debug-sections=none} %{gz=zlib-gnu:--compress-debug-sections=zlib-gnu} %X %{o*} %{e*} %{N} %{n} %{r}    %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}}     %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) %{fvtable-verify=none:} %{fvtable-verify=std:   %e-fvtable-verify=std is not supported in this configuration} %{fvtable-verify=preinit:   %e-fvtable-verify=preinit is not supported in this configuration} %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):%{!shared:libasan_preinit%O%s} %{static-libasan:%{!shared:-Bstatic --whole-archive -lasan --no-whole-archive -Bdynamic}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}}     %{%:sanitize(thread):%{!shared:libtsan_preinit%O%s} %{static-libtsan:%{!shared:-Bstatic --whole-archive -ltsan --no-whole-archive -Bdynamic}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}}     %{%:sanitize(leak):%{!shared:liblsan_preinit%O%s} %{static-liblsan:%{!shared:-Bstatic --whole-archive -llsan --no-whole-archive -Bdynamic}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}}}}} %o      %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):     %:include(libgomp.spec)%(link_gomp)}    %{fgnu-tm:%:include(libitm.spec)%(link_itm)}    %(mflib)  %{fsplit-stack: --wrap=pthread_create}    %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address): %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}    %{static:%ecannot specify -static with -fsanitize=address}}    %{%:sanitize(thread): %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}    %{static:%ecannot specify -static with -fsanitize=thread}}    %{%:sanitize(undefined):%{static-libubsan:-Bstatic} %{!static-libubsan:--push-state --no-as-needed} -lubsan  %{static-libubsan:-Bdynamic} %{!static-libubsan:--pop-state} %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}}    %{%:sanitize(leak): %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}}}}}     %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}    %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*}  
  %(post_link) }}}}}}</code></pre>
  </div>
  </div>
  </p>