fix build failures with -std=c99

Author: karel-m

demos/constants.c

@@ -1,5 +1,7 @@
 /* LibTomCrypt, modular cryptographic library -- Tom St Denis */
 /* SPDX-License-Identifier: Unlicense */
+
+#define _POSIX_C_SOURCE 200809L /* otherwise PATH_MAX + strdup are not defined for build with -std=c99 */
 #include "tomcrypt.h"
 
 #include <string.h>

demos/hashsum.c

@@ -10,6 +10,7 @@
  * more functions ;)
 */
 
+#define _POSIX_C_SOURCE 200809L /* otherwise PATH_MAX + strdup are not defined for build with -std=c99 */
 #include <tomcrypt.h>
 
 #include <string.h>

demos/sizes.c

@@ -1,6 +1,7 @@
 /* LibTomCrypt, modular cryptographic library -- Tom St Denis */
 /* SPDX-License-Identifier: Unlicense */
 
+#define _POSIX_C_SOURCE 200809L /* otherwise PATH_MAX + strdup are not defined for build with -std=c99 */
 #include "tomcrypt.h"
 
 #include <string.h>

src/ciphers/aes/aes_desc.c

@@ -22,7 +22,7 @@ static LTC_INLINE void s_x86_cpuid(int* regs, int leaf)
 
    a = leaf;
    b = c = d = 0;
-   asm volatile ("cpuid"
+   __asm__ volatile ("cpuid"
        :"=a"(a), "=b"(b), "=c"(c), "=d"(d)
        :"a"(a), "c"(c)
    );

src/encauth/gcm/gcm_gf_mult.c

@@ -40,7 +40,7 @@ static LTC_INLINE void s_x86_cpuid(int* regs, int leaf)
 
    a = leaf;
    b = c = d = 0;
-   asm volatile ("cpuid"
+   __asm__ volatile ("cpuid"
        :"=a"(a), "=b"(b), "=c"(c), "=d"(d)
        :"a"(a), "c"(c)
    );

src/hashes/sha1_desc.c

@@ -35,7 +35,7 @@ static LTC_INLINE void s_x86_cpuid(int* regs, int leaf)
 
     a = leaf;
     b = c = d = 0;
-    asm volatile ("cpuid"
+    __asm__ volatile ("cpuid"
         :"=a"(a), "=b"(b), "=c"(c), "=d"(d)
         :"a"(a), "c"(c)
     );

src/hashes/sha2/sha224_desc.c

@@ -40,7 +40,7 @@ static LTC_INLINE void s_x86_cpuid(int* regs, int leaf)
 
     a = leaf;
     b = c = d = 0;
-    asm volatile ("cpuid"
+    __asm__ volatile ("cpuid"
         :"=a"(a), "=b"(b), "=c"(c), "=d"(d)
         :"a"(a), "c"(c)
     );

src/hashes/sha2/sha256_desc.c

@@ -15,7 +15,7 @@ static LTC_INLINE void s_x86_cpuid(int* regs, int leaf)
 
     a = leaf;
     b = c = d = 0;
-    asm volatile ("cpuid"
+    __asm__ volatile ("cpuid"
         :"=a"(a), "=b"(b), "=c"(c), "=d"(d)
         :"a"(a), "c"(c)
     );

tests/common.c

@@ -1,7 +1,7 @@
 /* LibTomCrypt, modular cryptographic library -- Tom St Denis */
 /* SPDX-License-Identifier: Unlicense */
 
-#include "common.h"
+#include <tomcrypt_test.h>
 
 /**
   @file common.c

tests/der_test.c

@@ -966,7 +966,11 @@ static void der_Xcode_run(const der_Xcode_t* x)
 }
 
 #if defined(_MSC_VER)
-#define typeof(x) x
+#define LTC_TYPEOF(x) x
+#elif defined(__GNUC__) && defined(__STRICT_ANSI__)
+#define LTC_TYPEOF(x) __typeof__(x) /* needed for build with -std=c99 */
+#else
+#define LTC_TYPEOF(x) typeof(x)
 #endif
 
 #define DER_XCODE_X(n, b, x) {  \
@@ -975,7 +979,7 @@ static void der_Xcode_run(const der_Xcode_t* x)
       b,                   \
       sizeof(b),           \
       x,                   \
-      sizeof(typeof(b[0])),\
+      sizeof(LTC_TYPEOF(b[0])),\
       #n                   \
 }