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<p>Dear,</p>
<p>I try to build llvm 8.0.0 (with clang compiler-rt libcxx
libcxxabi lldb lld polly). But At libcxx build stage I got a wall
of error: 'std::abort' has not been declared</p>
<p>This happen when the builder compile the file:
libcxxabi/src/cxa_aux_runtime.cpp</p>
<p>I build using gcc 8.3.0 and I am able to build and run some toys
code (see below)</p>
<p>The command used to compile is (they are some duplicated flag due
to var env): <br>
</p>
<p>____________________________________________________________________________<br>
</p>
<p>$ /opt/gcc/bin/g++ -D_GNU_SOURCE
-D_LIBCPP_DISABLE_EXTERN_TEMPLATE
-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
-D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-I/tmp/BUILD/llvm-8.0.0/build/projects/libcxxabi/src
-I/tmp/BUILD/libcxxabi/src -I/usr/include/libxml2
-I/tmp/BUILD/llvm-8.0.0/build/include
-I/tmp/BUILD/llvm-8.0.0/include -I/tmp/BUILD/libcxxabi/include
-I/tmp/BUILD/libcxx/include -O3 -g -Wall -Wformat-security
-Wp,-D_GLIBCXX_ASSERTIONS -fPIC -fexceptions
-fstack-protector-strong -grecord-gcc-switches
-fasynchronous-unwind-tables -mtune=generic
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -std=gnu++14
-fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11
-Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual
-Wno-missing-field-initializers -pedantic -Wno-long-long
-Wimplicit-fallthrough -Wno-maybe-uninitialized
-Wno-class-memaccess -Wno-noexcept-type -Wdelete-non-virtual-dtor
-Wno-comment -ffunction-sections -fdata-sections -O3 -g -Wall
-Wformat-security -Wp,-D_GLIBCXX_ASSERTIONS -fPIC -fexceptions
-fstack-protector-strong -grecord-gcc-switches
-fasynchronous-unwind-tables -mtune=generic
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -std=gnu++14
-fPIC -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts
-Wconversion -Wmissing-braces -Wunused-function -Wshadow
-Wsign-compare -Wsign-conversion -Wstrict-aliasing=2
-Wstrict-overflow=4 -Wunused-parameter -Wunused-variable
-Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing
-funwind-tables -D_DEBUG -std=c++11 -o
CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o -c
/tmp/BUILD/libcxxabi/src/cxa_aux_runtime.cpp<br>
In file included from /tmp/BUILD/libcxx/include/stdlib.h:94,<br>
from /tmp/BUILD/libcxx/include/cstdlib:86,<br>
from /tmp/BUILD/libcxx/include/exception:82,<br>
from /tmp/BUILD/libcxx/include/new:85,<br>
from
/tmp/BUILD/libcxxabi/src/cxa_aux_runtime.cpp:14:<br>
/opt/gcc/include/c++/8/stdlib.h:38:12: error: 'std::abort' has not
been declared<br>
using std::abort;<br>
^~~~~<br>
/opt/gcc/include/c++/8/stdlib.h:39:12: error: 'std::atexit' has
not been declared<br>
using std::atexit;<br>
^~~~~~<br>
/opt/gcc/include/c++/8/stdlib.h:40:12: error: 'std::exit' has not
been declared<br>
</p>
<p>____________________________________________________________________________</p>
<p><br>
</p>
<p>Thanksfor your help,</p>
<p>Best regards<br>
</p>
<p><br>
</p>
<p> </p>
<p>#############</p>
<p># TOYS CODE #<br>
</p>
<p>#############</p>
<p>it_works.cpp</p>
<p>===========</p>
<p>#include <iostream><br>
using namespace std;<br>
int main(void) {<br>
cout << "It works for C++!" << endl;<br>
return 0;<br>
}<br>
<br>
</p>
<p><br>
</p>
<p>test_div.cpp </p>
<p>===========<br>
#include <iostream><br>
#include <cstdlib><br>
using namespace std;<br>
int main()<br>
{<br>
div_t result1 = div(51, 6);<br>
cout << "Quotient of 51/6 = " << result1.quot
<< endl;<br>
cout << "Remainder of 51/6 = " << result1.rem
<< endl;<br>
ldiv_t result2 = div(19237012L,251L);<br>
cout << "Quotient of 19237012L/251L = " <<
result2.quot << endl;<br>
cout << "Remainder of 19237012L/251L = " <<
result2.rem << endl;<br>
return 0;<br>
}<br>
<br>
</p>
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</p>
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