[SOLVED] Build fails on macOS 10.15.7

[nickwynja]

Expected Behaviour

Successful compile.

Actual Behaviour

Introduced with the 'new color objects' (e42ba82), build fails with the following errors:

gui/mutt_curses.c:48:3: error: unknown type name 'cchar_t'; did you mean 'wchar_t'?
  cchar_t cch = { 0 };
  ^~~~~~~
  wchar_t
/Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stddef.h:74:24: note:
      'wchar_t' declared here
typedef __WCHAR_TYPE__ wchar_t;
                       ^
gui/mutt_curses.c:49:3: error: implicit declaration of function 'setcchar' is invalid in C99
      [-Werror,-Wimplicit-function-declaration]
  setcchar(&cch, L" ", ac->attrs, index, NULL);
  ^
gui/mutt_curses.c:50:3: error: implicit declaration of function 'bkgrndset' is invalid in C99
      [-Werror,-Wimplicit-function-declaration]
  bkgrndset(&cch);
  ^
gui/mutt_curses.c:50:3: note: did you mean 'bkgdset'?
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/curses.h:535:29: note:
      'bkgdset' declared here
extern NCURSES_EXPORT(void) bkgdset (chtype);                           /* generated */
                            ^
3 errors generated.
make: *** [gui/mutt_curses.o] Error 1

Steps to Reproduce

./configure                                     \
     --notmuch                                  \
     --disable-doc                              \
     --lmdb                                     \
     --with-nls=/usr/local/opt/gettext          \
     --with-lmdb=/usr/local/opt/lmdb            \
&& make                                         \
&& sudo make install

How often does this happen?

• Always

When did it start to happen?

e42ba82

NeoMutt Version

Building from 20220408 tag or master

Extra Info

• macOS 10.15.7
• mac command line tools are up to date

[nickwynja]

I see a comment in this discussion:

As jindraj recently discovered, NeoMutt doesn't even compile against decade-old versions of ncurses.

Maybe this is what I'm running into?

[jindraj]

Hi Nick,

that's exactly what I was also dealing with. This is what helped me:

• Install ncurses from brew (you most probably already have it as a dependency of other packages)

brew install ncurses

• export following variables (mentioned in brew caveats after installation or brew info ncurses)

export LDFLAGS="-L/opt/homebrew/opt/ncurses/lib"
export CPPFLAGS="-I/opt/homebrew/opt/ncurses/include"

[nickwynja]

@jindraj Thank you! Appreciate the mention of brew info ncurses since my paths were actually:

export LDFLAGS="-L/usr/local/opt/ncurses/lib"
export CPPFLAGS="-I/usr/local/opt/ncurses/include"

[flatcap]

Update:

It is possible to build with this version of ncurses.

Setting this environment variable before building will enable the header that contains cchar_t.

export EXTRA_CFLAGS='-D_XOPEN_SOURCE_EXTENDED'