Win32: Fix drive root detection with \\?\-style paths

[wimlib] / src / header.c

diff --git a/src/header.c b/src/header.c
index 5a665fc25113db71eec709ca697cd063839c5943..5b164161e82bce404a1e8235f57d72c047a87778 100644 (file)
--- a/src/header.c
+++ b/src/header.c
@@ -120,6 +120,8 @@ read_header(const tchar *filename, int in_fd,
 {
        struct wim_header_disk disk_hdr _aligned_attribute(8);
 
+       BUILD_BUG_ON(sizeof(struct wim_header_disk) != WIM_HEADER_DISK_SIZE);
+
        DEBUG("Reading WIM header from \"%"TS"\"", filename);
 
        if (full_pread(in_fd, &disk_hdr, sizeof(disk_hdr), 0) != sizeof(disk_hdr)) {
@@ -132,7 +134,6 @@ read_header(const tchar *filename, int in_fd,
                return WIMLIB_ERR_NOT_A_WIM_FILE;
        }
 
-       BUILD_BUG_ON(sizeof(struct wim_header_disk) != WIM_HEADER_DISK_SIZE);
        if (le32_to_cpu(disk_hdr.hdr_size) != sizeof(struct wim_header_disk)) {
                ERROR("\"%"TS"\": Header size is invalid (%u bytes)",
                      filename, le32_to_cpu(disk_hdr.hdr_size));