Error when trying to import Windows SQL headers

[mjoerussell]

Zig Version: 0.9.0-dev.140+4173a2bc2

Min Repro: On the above version of Zig, if I try to compile the following code:

const c = @cImport({
    @cInclude("windows.h");
    @cInclude("sqlext.h");
});

pub fn main() !void {
    const odbc_2 = c.SQL_OV_ODBC2;
}

I get this error:

error: unable to translate C expr: unexpected token .HashHash
pub const __MSABI_LONG = @compileError("unable to translate C expr: unexpected token .HashHash"); // C:\Users\mjoer\Code\zig\build-release\lib\zig\libc\include\any-windows-any/_mingw_mac.h:209:13
                         ^
.\zig-cache\o\255badc43fbb061efcb527c641fb4bea\cimport.zig:82622:26: note: referenced here
pub const SQL_OV_ODBC2 = __MSABI_LONG(@as(c_uint, 2));
                         ^
.\src\main.zig:10:21: note: referenced here
    const odbc_2 = c.SQL_OV_ODBC2;
                    ^
scratch...The following command exited with error code 1:
C:\Users\mjoer\Code\zig\build-release\bin\zig.exe build-exe C:\Users\mjoer\Code\tests\zig\scratch\src\main.zig -lc -lodbc32 --cache-dir C:\Users\mjoer\Code\tests\zig\scratch\zig-cache --global-cache-dir C:\Users\mjoer\AppData\Local\zig --name scratch --enable-cache
error: the following build command failed with exit code 1:
C:\Users\mjoer\Code\tests\zig\scratch\zig-cache\o\76851c19e00f699686ad20056f38b112\build.exe C:\Users\mjoer\Code\zig\build-release\bin\zig.exe C:\Users\mjoer\Code\tests\zig\scratch C:\Users\mjoer\Code\tests\zig\scratch\zig-cache C:\Users\mjoer\AppData\Local\zig run

[ehaas]

__MSABI_LONG appears to be a macro that uses token pasting (## ). Those macros can't be directly translated to Zig.

As a workaround, you can try the following (untested):

const c = @cImport({
    @cDefine("__MSABI_LONG(x)", "(long)(x)");
    @cInclude("windows.h");
    @cInclude("sqlext.h");
});
pub fn main() !void {
    const odbc_2 = c.SQL_OV_ODBC2;
}

[mjoerussell]

Thanks, that seems to fix the issue.