diff --git a/arch/arm/bits/syscall.h b/arch/arm/bits/syscall.h
index 9932c9e..18cbbc2 100644
--- a/arch/arm/bits/syscall.h
+++ b/arch/arm/bits/syscall.h
@@ -7,37 +7,58 @@
 
 long (__syscall)(long, ...);
 
-static inline long __syscall0(long n)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall0(long n)
 {
 	return (__syscall)(n);
 }
 
-static inline long __syscall1(long n, long a)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall1(long n, long a)
 {
 	return (__syscall)(n, a);
 }
 
-static inline long __syscall2(long n, long a, long b)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall2(long n, long a, long b)
 {
 	return (__syscall)(n, a, b);
 }
 
-static inline long __syscall3(long n, long a, long b, long c)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall3(long n, long a, long b, long c)
 {
 	return (__syscall)(n, a, b, c);
 }
 
-static inline long __syscall4(long n, long a, long b, long c, long d)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall4(long n, long a, long b, long c, long d)
 {
 	return (__syscall)(n, a, b, c, d);
 }
 
-static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long n, long a, long b, long c, long d, long e)
 {
 	return (__syscall)(n, a, b, c, d, e);
 }
 
-static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall6(long n, long a, long b, long c, long d, long e, long f)
 {
 	return (__syscall)(n, a, b, c, d, e, f);
 }
diff --git a/arch/i386/bits/syscall.h b/arch/i386/bits/syscall.h
index 4b574e9..f37eca0 100644
--- a/arch/i386/bits/syscall.h
+++ b/arch/i386/bits/syscall.h
@@ -5,7 +5,10 @@
 
 #define __SYSCALL_SSLEN 8
 
-static inline long __syscall0(long __n)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall0(long __n)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n) : "memory");
@@ -14,42 +17,60 @@ static inline long __syscall0(long __n)
 
 #ifndef __PIC__
 
-static inline long __syscall1(long __n, long __a1)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall1(long __n, long __a1)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1) : "memory");
 	return __ret;
 }
 
-static inline long __syscall2(long __n, long __a1, long __a2)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall2(long __n, long __a1, long __a2)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2) : "memory");
 	return __ret;
 }
 
-static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall3(long __n, long __a1, long __a2, long __a3)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3) : "memory");
 	return __ret;
 }
 
-static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3), "S"(__a4) : "memory");
 	return __ret;
 }
 
-static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3), "S"(__a4), "D"(__a5) : "memory");
 	return __ret;
 }
 
-static inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("pushl %7 ; pushl %%ebp ; mov 4(%%esp),%%ebp ; int $128 ; popl %%ebp ; popl %%ecx"
@@ -59,7 +80,10 @@ static inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __
 
 #else
 
-static inline long __syscall1(long __n, long __a1)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall1(long __n, long __a1)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
@@ -67,7 +91,10 @@ static inline long __syscall1(long __n, long __a1)
 	return __ret;
 }
 
-static inline long __syscall2(long __n, long __a1, long __a2)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall2(long __n, long __a1, long __a2)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
@@ -75,7 +102,10 @@ static inline long __syscall2(long __n, long __a1, long __a2)
 	return __ret;
 }
 
-static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall3(long __n, long __a1, long __a2, long __a3)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
@@ -83,7 +113,10 @@ static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
 	return __ret;
 }
 
-static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
@@ -92,7 +125,10 @@ static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __
 }
 
 #if 0
-static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("pushl %2 ; pushl %%ebx ; mov 4(%%esp),%%ebx ; int $128 ; popl %%ebx ; popl %%ecx"
@@ -100,13 +136,19 @@ static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __
 	return __ret;
 }
 #else
-static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
 {
 	return (__syscall)(__n, __a1, __a2, __a3, __a4, __a5);
 }
 #endif
 
-static inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
 {
 	return (__syscall)(__n, __a1, __a2, __a3, __a4, __a5, __a6);
 }
diff --git a/arch/mips/bits/syscall.h b/arch/mips/bits/syscall.h
index 6c51bab..418630b 100644
--- a/arch/mips/bits/syscall.h
+++ b/arch/mips/bits/syscall.h
@@ -7,37 +7,58 @@
 
 long (__syscall)(long, ...);
 
-static inline long __syscall0(long n)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall0(long n)
 {
 	return (__syscall)(n);
 }
 
-static inline long __syscall1(long n, long a)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall1(long n, long a)
 {
 	return (__syscall)(n, a);
 }
 
-static inline long __syscall2(long n, long a, long b)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall2(long n, long a, long b)
 {
 	return (__syscall)(n, a, b);
 }
 
-static inline long __syscall3(long n, long a, long b, long c)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall3(long n, long a, long b, long c)
 {
 	return (__syscall)(n, a, b, c);
 }
 
-static inline long __syscall4(long n, long a, long b, long c, long d)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall4(long n, long a, long b, long c, long d)
 {
 	return (__syscall)(n, a, b, c, d);
 }
 
-static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long n, long a, long b, long c, long d, long e)
 {
 	return (__syscall)(n, a, b, c, d, e);
 }
 
-static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall6(long n, long a, long b, long c, long d, long e, long f)
 {
 	return (__syscall)(n, a, b, c, d, e, f);
 }
diff --git a/arch/x86_64/bits/syscall.h b/arch/x86_64/bits/syscall.h
index 567cfcb..9f58d6f 100644
--- a/arch/x86_64/bits/syscall.h
+++ b/arch/x86_64/bits/syscall.h
@@ -3,21 +3,30 @@
 
 #define __SYSCALL_SSLEN 8
 
-static inline long __syscall0(long __n)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall0(long __n)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n) : "rcx", "r11", "memory");
 	return __ret;
 }
 
-static inline long __syscall1(long __n, long __a1)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall1(long __n, long __a1)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1) : "rcx", "r11", "memory");
 	return __ret;
 }
 
-static inline long __syscall2(long __n, long __a1, long __a2)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall2(long __n, long __a1, long __a2)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2)
@@ -25,7 +34,10 @@ static inline long __syscall2(long __n, long __a1, long __a2)
 	return __ret;
 }
 
-static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall3(long __n, long __a1, long __a2, long __a3)
 {
 	unsigned long __ret;
 	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
@@ -33,7 +45,10 @@ static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
 	return __ret;
 }
 
-static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
 {
 	unsigned long __ret;
 	register long __r10 __asm__("r10") = __a4;
@@ -42,7 +57,10 @@ static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __
 	return __ret;
 }
 
-static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
 {
 	unsigned long __ret;
 	register long __r10 __asm__("r10") = __a4;
@@ -52,7 +70,10 @@ static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __
 	return __ret;
 }
 
-static inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
+#if __STDC_VERSION__ >= 199901L
+inline
+#endif
+static long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
 {
 	unsigned long __ret;
 	register long __r10 __asm__("r10") = __a4;