@@ -123,6 +123,31 @@ else
exit 1
fi
+# Check that stdio.h compiler is sane: some
+# mingw variants do not support %z %l that we rely on
+cat > $TMPC <<EOF
+#include <stddef.h>
+#include <stdio.h>
+size_t z = 1;
+long long ll = 2;
+int main(void) {
+ printf("z=%zd;ll=%lld;\n", z, ll);
+ return 0;
+}
+EOF
+
+if compile_prog && ($TMPE | grep "z=1;ll=2;" > /dev/null); then
+ : C compiler works ok
+else
+ echo "ERROR: \"$cc\" does not have a working stdio.h"
+ exit 1
+fi
+
+cat > $TMPC << EOF
+#include <unistd.h>
+int main(void) { return fdatasync(0); }
+EOF
+
check_define() {
cat > $TMPC <<EOF
#if !defined($1)
Verify that stdio.h supports %ll and %z Some migw variants don't unless requested explicitly (see http://www.mail-archive.com/mingw-w64-public@lists.sourceforge.net/msg00417.html) ), detect them early. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- configure | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+), 0 deletions(-)