Dependency loop in freetype2 headers

[ghost]

a.zig:

pub const c = @cImport({
    @cInclude("ft2build.h");
    @cInclude("freetype/freetype.h");
});
pub fn main() void {
    var face: c.FT_Face = undefined;
}

Compiled with:
zig build-exe a.zig --library c --library freetype -isystem /usr/include/freetype2

Gives this error:

zig-cache/o/OPRYCxVqJRuz1FBE7cxkaVmUc5pB0h6OQxHWBaUX5D_np3bvZ6osvEfVq4HIHqxi/cimport.zig:1021:11: error: dependency loop detected
    face: FT_Face,
          ^
zig-cache/o/OPRYCxVqJRuz1FBE7cxkaVmUc5pB0h6OQxHWBaUX5D_np3bvZ6osvEfVq4HIHqxi/cimport.zig:1089:19: note: referenced here
    charmaps: [*c]FT_CharMap,
                  ^
/home/daniel/freetype-bug/a.zig:6:16: note: referenced here
    var face: c.FT_Face = undefined;

The FT_Face type is a pointer to a struct which contains a pointer to an FT_Face within it.

[andrewrk]

Here is a proposal to fix this: #2174

[andrewrk]

This is fixed by #2174. Now I get this:

zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1009:5: error: enum tag value 1734484000 already taken
    FT_ENCODING_GB2312 = 1734484000,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1005:5: note: other occurrence here
    FT_ENCODING_PRC = 1734484000,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1010:5: error: enum tag value 1936353651 already taken
    FT_ENCODING_MS_SJIS = 1936353651,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1004:5: note: other occurrence here
    FT_ENCODING_SJIS = 1936353651,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1011:5: error: enum tag value 1734484000 already taken
    FT_ENCODING_MS_GB2312 = 1734484000,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1005:5: note: other occurrence here
    FT_ENCODING_PRC = 1734484000,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1012:5: error: enum tag value 1651074869 already taken
    FT_ENCODING_MS_BIG5 = 1651074869,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1006:5: note: other occurrence here
    FT_ENCODING_BIG5 = 1651074869,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1013:5: error: enum tag value 2002873971 already taken
    FT_ENCODING_MS_WANSUNG = 2002873971,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1007:5: note: other occurrence here
    FT_ENCODING_WANSUNG = 2002873971,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1014:5: error: enum tag value 1785686113 already taken
    FT_ENCODING_MS_JOHAB = 1785686113,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1008:5: note: other occurrence here
    FT_ENCODING_JOHAB = 1785686113,
    ^
zig-cache/o/1GovFs3COiIeKW6PXsonkasqjGb5qVy4KRuif9QLDKiSxs4OwI4k0gnEI361aLKp/cimport.zig:1091:5: note: while checking this field
    charmaps: [*c]FT_CharMap,
    ^
/home/andy/tmp/test.zig:6:5: note: referenced here
    var face: c.FT_Face = undefined;
    ^

which is #2115