libcxx/cctype: error: no member named 'isalnum' in the global namespace #7253
Description
I'm trying to build scipy as part of the pyodide project with emsdk 1.38.12 and I am getting a few errors of the form,
em++ -Wno-implicit-function-declaration -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -D__STDC_FORMAT_MACROS=1 -I[...] -c scipy/sparse/sparsetools/sparsetools.cxx -o build/temp.linux-x86_64-3.7/scipy/sparse/sparsetools/sparsetools.bc -MMD -MF build/temp.linux-x86_64-3.7/scipy/sparse/sparsetools/sparsetools.o.d
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:104:9:
error: no member named 'isalnum' in the global namespace; did you mean 'iswalnum'?
using ::isalnum;
~~^
The same error message is also obtained for isalpha, isblank, iscntrl, isdigit, isgraph, islower, isprint, isspace, isupper, isxdigit, tolower and toupper functions.
While the initial include that triggers it at scipy/sparse/sparsetools/sparsetools.cxx:29: is just,
#include <string>The full error logs can be found below,
Details
em++ -I../../CLAPACK-WA/F2CLIBS/libf2c/ -Wno-implicit-function-declaration -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -D__STDC_FORMAT_MACROS=1 -Iscipy/sparse/sparsetools -I/home/rth/src/pyodide/cpython/build/3.7.0/host/lib/python3.7/site-packages/numpy-1.15.1-py3.7-linux-x86_64.egg/numpy/core/include -I/home/rth/src/pyodide/cpython/installs/python-3.7.0/include/python3.7 -c scipy/sparse/sparsetools/sparsetools.cxx -o build/temp.linux-x86_64-3.7/scipy/sparse/sparsetools/sparsetools.bc -MMD -MF build/temp.linux-x86_64-3.7/scipy/sparse/sparsetools/sparsetools.o.d
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:104:9: error: no member named 'isalnum' in the global namespace; did you mean 'iswalnum'?
using ::isalnum;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:159:11: note: 'iswalnum' declared here
int iswalnum(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:105:9: error: no member named 'isalpha' in the global namespace; did you mean 'iswalpha'?
using ::isalpha;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:160:11: note: 'iswalpha' declared here
int iswalpha(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:106:9: error: no member named 'isblank' in the global namespace; did you mean 'iswblank'?
using ::isblank;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:161:11: note: 'iswblank' declared here
int iswblank(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:107:9: error: no member named 'iscntrl' in the global namespace; did you mean 'iswcntrl'?
using ::iscntrl;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:162:11: note: 'iswcntrl' declared here
int iswcntrl(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:108:9: error: no member named 'isdigit' in the global namespace
using ::isdigit;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:109:9: error: no member named 'isgraph' in the global namespace; did you mean 'iswgraph'?
using ::isgraph;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:164:11: note: 'iswgraph' declared here
int iswgraph(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:110:9: error: no member named 'islower' in the global namespace; did you mean 'iswlower'?
using ::islower;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:165:11: note: 'iswlower' declared here
int iswlower(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:111:9: error: no member named 'isprint' in the global namespace; did you mean 'iswprint'?
using ::isprint;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:166:11: note: 'iswprint' declared here
int iswprint(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:112:9: error: no member named 'ispunct' in the global namespace; did you mean 'iswpunct'?
using ::ispunct;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:167:11: note: 'iswpunct' declared here
int iswpunct(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:113:9: error: no member named 'isspace' in the global namespace; did you mean 'iswspace'?
using ::isspace;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:168:11: note: 'iswspace' declared here
int iswspace(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:114:9: error: no member named 'isupper' in the global namespace; did you mean 'iswupper'?
using ::isupper;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:169:11: note: 'iswupper' declared here
int iswupper(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:115:9: error: no member named 'isxdigit' in the global namespace
using ::isxdigit;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:116:9: error: no member named 'tolower' in the global namespace; did you mean 'towlower'?
using ::tolower;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:172:11: note: 'towlower' declared here
wint_t towlower(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:29:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/string:481:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwchar:107:
In file included from /home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cwctype:54:
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libcxx/cctype:117:9: error: no member named 'toupper' in the global namespace; did you mean 'towupper'?
using ::toupper;
~~^
/home/rth/src/pyodide/emsdk/emsdk/emscripten/tag-1.38.12/system/include/libc/wchar.h:173:11: note: 'towupper' declared here
wint_t towupper(wint_t);
^
In file included from scipy/sparse/sparsetools/sparsetools.cxx:34:
In file included from /home/rth/src/pyodide/cpython/build/3.7.0/host/lib/python3.7/site-packages/numpy-1.15.1-py3.7-linux-x86_64.egg/numpy/core/include/numpy/ndarrayobject.h:18:
In file included from /home/rth/src/pyodide/cpython/build/3.7.0/host/lib/python3.7/site-packages/numpy-1.15.1-py3.7-linux-x86_64.egg/numpy/core/include/numpy/ndarraytypes.h:1821:
/home/rth/src/pyodide/cpython/build/3.7.0/host/lib/python3.7/site-packages/numpy-1.15.1-py3.7-linux-x86_64.egg/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-W#warnings]
#warning "Using deprecated NumPy API, disable it by " \
^
1 warning and 14 errors generated.
ERROR:root:compiler frontend failed to generate LLVM bitcode, halting
while the C++ file being being built can be found here.
I have not seen such errors in other existing emscripten issues / mailing list posts and I assume #include <string> does work in other projects. Maybe it's a usage question but then because the error happens inside system/include/libcxx/cctype I though it still might be worth reporting on Github.
Any suggestions would be very much appreciated.