The Simple Authentication and Security Layer (SASL) library re-defines the struct iovec on Win32 [*]. QEMU also re-defines it in "qemu/osdep.h". The two definitions then clash on a MinGW build. We can avoid the SASL definition by defining STRUCT_IOVEC_DEFINED. Add the definition to vnc_sasl_cflags if we are uing MinGW.
[*] https://github.com/cyrusimap/cyrus-sasl/blob/cyrus-sasl-2.1.27/include/sasl.h#L187 Cc: Alexey Pavlov <alex...@gmail.com> Cc: Biswapriyo Nath <nathbap...@gmail.com> Cc: Youry Metlitsky <win...@yandex.ru> Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com> --- configure | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 0c2dd1eb08..0bc87ce42a 100755 --- a/configure +++ b/configure @@ -3375,7 +3375,13 @@ if test "$vnc" = "yes" && test "$vnc_sasl" != "no" ; then int main(void) { sasl_server_init(NULL, "qemu"); return 0; } EOF # Assuming Cyrus-SASL installed in /usr prefix - vnc_sasl_cflags="" + if test "$mingw32" = "yes" && test "$iovec" != "yes"; then + # QEMU defines struct iovec in "qemu/osdep.h", + # we don't want libsasl to redefine it in <sasl/sasl.h>. + vnc_sasl_cflags="-DSTRUCT_IOVEC_DEFINED" + else + vnc_sasl_cflags="" + fi vnc_sasl_libs="-lsasl2" if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then vnc_sasl=yes -- 2.21.1
