Compiling problem with MS VC 6
mkoegler at auto.tuwien.ac.at
Sun May 29 15:41:01 CEST 2005
I tried compiling libgcrypt 1.2.1 with MS Visual C++ 6 on Windows and discovered the following
* cipher/random.c includes unconditionally sys/time.h and unistd.h.
and AC_CHECK_HEADERS for sys/time.h should make the library more portable.
(MS VC has no sys/time.h, using only time.h works).
unistd.h should also be included only, if it is present (unistd.h needs
to be added to AC_CHECK_HEADERS too):
Some definitions, which are expected to be in unistd.h, can be found in the file io.h.
(It can be included by config.h or by the c source file).
* src/ath.c also includes unconditionally sys/time.h and unistd.h.
It should be changed in the same way.
* src/gcrypt.h includes unconditionally sys/time.h. Here a conditional include will
* if src/gcrypt.h is included in a program, pid_t, ssize_t and socklen_t must be
defined by the program before.
* Some functions have inconsitent prototypes, eg:
mpi/mpi-cmp.c:gcry_mpi_cmp_ui( gcry_mpi_t u, unsigned long v )
src/gcrypt.h:int gcry_mpi_cmp_ui (const gcry_mpi_t u, unsigned long v);
src/mpi.h:int gcry_mpi_cmp_ui( gcry_mpi_t u, ulong v );
mpi/mpi-cmp.c:gcry_mpi_cmp( gcry_mpi_t u, gcry_mpi_t v )
src/gcrypt.h:int gcry_mpi_cmp (const gcry_mpi_t u, const gcry_mpi_t v);
rc/mpi.h:int gcry_mpi_cmp( gcry_mpi_t u, gcry_mpi_t v );
* in crypt/tiger.c the postfix LL is used instead of the macro U64_C:
cipher/tiger.c: hd->a = 0x0123456789abcdefLL;
cipher/tiger.c: hd->b = 0xfedcba9876543210LL;
cipher/tiger.c: hd->c = 0xf096a5b4c3b2e187LL;
cipher/tiger.c: x -= x ^ 0xa5a5a5a5a5a5a5a5LL;
cipher/tiger.c: x -= x ^ 0x0123456789abcdefLL;
All other problems are solveable in the config.h file:
#define VERSION "1.2.1"
typedef unsigned __int64 uint64_t;
#define UINT64_C(C) (C)
#define SIZEOF_UINT64_T 8
#define S_IWUSR _S_IWRITE
#define S_IRUSR _S_IREAD
#define S_ISREG(A) (1)
#define pid_t int
#define ssize_t int
#define socklen_t int
#define USE_RNDW32 1
/* select of enabled features follow */
With these changes, it is possible to get a gcrypt, where all features I need for
In the current CVS version, all these problems are still present.
mfg Martin Kögler
e9925248 at stud4.tuwien.ac.at
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