title: GCC 5.2 Error with cc1, cc1plus
body: <p>I received the following error while making GCC 5.2 for CentOS 7.  I had added a few files to make it work, libstdc++-devel, ccache along with running the 'download prerequisites' command.  Below is what happened before the error message appeared.</p>
  
  <pre><code> cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/decl.o cp/expr.o cp/pt.o 
   cp/typeck2.o cp/class.o cp/decl2.o cp/error.o cp/lex.o cp/parser.o 
   cp/ptree.o cp/rtti.o cp/typeck.o cp/cvt.o cp/except.o cp/friend.o 
   cp/init.o cp/method.o cp/search.o cp/semantics.o cp/tree.o cp/repo.o 
   cp/dump.o cp/optimize.o cp/mangle.o cp/cp-objcp-common.o cp/name-lookup.o 
   cp/cxx-pretty-print.o cp/cp-cilkplus.o cp/cp-gimplify.o cp/cp-array-notation.o
   cp/lambda.o cp/vtable-class-hierarchy.o cp/constexpr.o cp/cp-ubsan.o
   attribs.o incpath.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o 
   c-family/c-format.o c-family/c-gimplify.o c-family/c-lex.o 
   c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o 
   c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o 
   c-family/c-cilkplus.o c-family/array-notation-common.o c-family/cilk.o 
   c-family/c-ubsan.o i386-c.o glibc-c.o cc1plus-checksum.o libbackend.a main.o  
   libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber
   /libdecnumber.a libcommon.a ../libcpp/libcpp.a   ../libbacktrace/.libs
   /libbacktrace.a ../libiberty/libiberty.a 
   ../libdecnumber/libdecnumber.a   -lmpc -lmpfr -lgmp -rdynamic -ldl  -L../zlib -lz
  </code></pre>
  
  <p>EDIT...(process before error) </p>
  
  <pre><code>collect2: error: ld returned 1 exit status
  collect2: error: ld returned 1 exit status
  make[3]: *** [cc1plus] Error 1
  make[3]: *** Waiting for unfinished jobs....
  make[3]: *** [cc1] Error 1
  make[3]: Leaving directory `/usr/local/gcc-5.2/gcc-5.2.0/objdir/gcc'
  make[2]: *** [all-stage3-gcc] Error 2
  make[2]: Leaving directory `/usr/local/gcc-5.2/gcc-5.2.0/objdir'
  make[1]: *** [stage3-bubble] Error 2
  make[1]: Leaving directory `/usr/local/gcc-5.2/gcc-5.2.0/objdir'
  make: *** [all] Error 2
  </code></pre>
  
  <p>From the <code>config.log</code> file (ADDED)</p>
  
  <pre><code> configure:5989: checking for compatible ISL
   configure:6002: gcc -msse2 -flto -fuse-linker-plugin -o conftest -g -O2
    -lisl conftest.c  -lisl &gt;&amp;5
   conftest.c:10:21: fatal error: isl/val.h: No such file or directory
   #include &lt;isl/val.h&gt;
  </code></pre>
  
  <p>Various searches through the Google, have not turned anything up.  Most errors had a particular error with the cc1 Error, while my setup just output "Leaving Directory".  Looking through the potential errors on the GCC webpage did not turn up anything.  I had setup the compile file with with the following settings.  Thank you for your help.</p>
  
  <pre><code>/usr/local/gcc-5.2/gcc-5.2.0/configure --prefix=/usr/local/sbin/gcc-5.2.0
  --enable-languages=c,c++  --disable-multilib 
  </code></pre>