C++11 required by libxml2 + icu 61? about pdfalto HOT 6 CLOSED

For future reference, adding -DUCHAR_TYPE=wchar_t would solve this. For details read the umachine.h.

/**

• \var UChar
• The base type for UTF-16 code units and pointers.
• Unsigned 16-bit integer.
• Starting with ICU 59, C++ API uses char16_t directly, while C API continues to use UChar.
• UChar is configurable by defining the macro UCHAR_TYPE
• on the preprocessor or compiler command line:
• -DUCHAR_TYPE=uint16_t or -DUCHAR_TYPE=wchar_t (if U_SIZEOF_WCHAR_T==2) etc.
• (The UCHAR_TYPE can also be #defined earlier in this file, for outside the ICU library code.)
• This is for transitional use from application code that uses uint16_t or wchar_t for UTF-16.
• The default is UChar=char16_t.
• C++11 defines char16_t as bit-compatible with uint16_t, but as a distinct type.
  ...

from pdfalto.

Hello,
Concerning the first part, it actually depends on the gcc version you have (and the value of its include parameter), the update have solved the issue but it was not the reason, so yes maybe it's related to icu. fyi the c++ standard is updated to 11 to support last needed changes.

As I commented in XPDF repository, libpaper is not mandatory.

from pdfalto.

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 8.1.0 (GCC)

I'm no C++ expert, but as far as I understand char16_t appeared as a type in C++11, and icu 61 seems to use it. So unless you specify that this shouldn't build with icu 61, then pdfalto also needs C++11, which is what the fix I was suggesting does. What other problem could it be?

from pdfalto.

Ok that's right, because you've installed icu 61 you needed c++11 standard, anyway it's updated to use C++11 standard since it was needed for another purpose for pdfalto.

from pdfalto.

Hello,
Could you close this issue please ?

from pdfalto.

Thanks for the fix!

from pdfalto.