[Bug 43971] New: Wine 2.20 Bcrypt compilation fails under older linux systems while Wine 2.0.3 compiles fine

https://bugs.winehq.org/show_bug.cgi?id=43971

Bug ID: 43971
           Summary: Wine 2.20 Bcrypt compilation fails under older linux
                    systems while Wine 2.0.3 compiles fine
           Product: Wine
           Version: 2.20
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bcrypt
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

LOG:

make[1]: Entering directory
`/home/frd/Software_Packages/source_compile/wine/builds/wine-2.20/dlls/bcrypt'
gcc -c -o bcrypt_main.o bcrypt_main.c -I. -I../../include -D__WINESRC__
-D_REENTRANT -fPIC -Wall -pipe \
  -fno-strict-aliasing -Wdeclaration-after-statement -Wempty-body
-Wignored-qualifiers \
  -Wstrict-prototypes -Wtype-limits -Wunused-but-set-parameter -Wvla
-Wwrite-strings -Wpointer-arith \
  -Wlogical-op -gdwarf-2 -gstrict-dwarf -fno-omit-frame-pointer -g -O2
-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
bcrypt_main.c:830:1: error: ‘key’ defined as wrong kind of tag
 {
 ^
make[1]: *** [bcrypt_main.o] Error 1
make[1]: Leaving directory
`/home/frd/Software_Packages/source_compile/wine/builds/wine-2.20/dlls/bcrypt'
make: *** [dlls/bcrypt] Error 2

GCC version: 4.8.1

Configure output:

configure: libgnutls development files too old, bcrypt encryption won't be
supported.

So why is bcrypt compilling ?