How do I create a working C ++ 11 setup on GCC on FreeBSD 10? It appears that the standard library that ships with recent versions of GCC on FreeBSD is broken. I installed the gcc49 port and then try to compile this:
#include <string> int main() { auto str = std::to_string(42); str = std::to_string(42ull); str = std::to_string(4.2); str.clear(); return 0; }
This gives me an error:
g++49 -v -std=c++11 foo.cc Using built-in specs. COLLECT_GCC=g++49 COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc49/gcc/x86_64-portbld-freebsd10.0/4.9.2/lto-wrapper Target: x86_64-portbld-freebsd10.0 Configured with: ./../gcc-4.9-20141022/configure --disable-nls --enable-gnu-indirect-function --libdir=/usr/local/lib/gcc49 --libexecdir=/usr/local/libexec/gcc49 --program-suffix=49 --with-as=/usr/local/bin/as --with-gmp=/usr/local --with-gxx-include-dir=/usr/local/lib/gc c49/include/c++/ --with-ld=/usr/local/bin/ld --with-pkgversion='FreeBSD Ports Collection' --with-system-zlib --with-ecj-jar=/usr/local/share/java/ecj-4.5.jar --enable-languages=c,c++,objc,fortran,java --prefix=/usr/local --mandir=/usr/local/man --infodir=/usr/local/info/gcc49 --build=x86_64-portbld-freebsd10.0 Thread model: posix gcc version 4.9.2 20141022 (prerelease) (FreeBSD Ports Collection) COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /usr/local/libexec/gcc49/gcc/x86_64-portbld-freebsd10.0/4.9.2/cc1plus -quiet -v foo.cc -quiet -dumpbase foo.cc -mtune=generic -march=x86-64 -auxbase foo -std=c++11 -version -o /tmp//ccbNFhtI.s GNU C++ (FreeBSD Ports Collection) version 4.9.2 20141022 (prerelease) (x86_64-portbld-freebsd10.0) compiled by GNU C version 4.9.2 20141022 (prerelease), GMP version 5.1.3, MPFR version 3.1.2, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/usr/local/lib/gcc49/gcc/x86_64-portbld-freebsd10.0/4.9.2/../../../../../x86_64-portbld-freebsd10.0/include" #include "..." search starts here: #include <...> search starts here: /usr/local/lib/gcc49/include/c++/ /usr/local/lib/gcc49/include/c++//x86_64-portbld-freebsd10.0 /usr/local/lib/gcc49/include/c++//backward /usr/local/lib/gcc49/gcc/x86_64-portbld-freebsd10.0/4.9.2/include /usr/local/include /usr/local/lib/gcc49/gcc/x86_64-portbld-freebsd10.0/4.9.2/include-fixed /usr/include End of search list. GNU C++ (FreeBSD Ports Collection) version 4.9.2 20141022 (prerelease) (x86_64-portbld-freebsd10.0) compiled by GNU C version 4.9.2 20141022 (prerelease), GMP version 5.1.3, MPFR version 3.1.2, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 8405316ee381c37148f55a17e42da47a foo.cc: In function 'int main()': foo.cc:5:14: error: 'to_string' is not a member of 'std' auto str = std::to_string(42); ^ foo.cc:6:9: error: 'to_string' is not a member of 'std' str = std::to_string(42ull); ^ foo.cc:7:9: error: 'to_string' is not a member of 'std' str = std::to_string(4.2); ^
The default search path is /usr/local/lib/gcc49/include/c++/ , which contains the string header. It makes sense, since the gcc49 port comes with the corresponding libstC ++. But, apparently, this was violated in accordance with the above error.
Is this a known issue? Has anyone got a working GCC-based toolchain setup for C ++ 11 on FreeBSD?
(Note. I know that Clang is the default compiler on FreeBSD 10. But in this case, I'm specifically looking for GCC-based toolchain support.)
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