Use portable 'static inline' semantics that work in GNU89 and C99
See also: http://www.greenend.org.uk/rjk/tech/inline.html

--- a/src/dicg.c
+++ b/src/dicg.c
@@ -441,7 +441,7 @@
  * Algorithm by Karin Schaber and Otmar Lendl.
  *
  */                                                  
-inline prng_num prng_dicg_multiply(int k,prng_num c, prng_num d)
+prng_num prng_dicg_multiply(int k,prng_num c, prng_num d)
 {
   int i;
   struct mtable *t;
--- a/src/external.c
+++ b/src/external.c
@@ -139,7 +139,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_tt800_get_next_int(struct prng *gen)
+prng_num prng_tt800_get_next_int(struct prng *gen)
 {
 unsigned int y;
 struct tt800_state *g;
--- a/src/icg.c
+++ b/src/icg.c
@@ -110,7 +110,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_icg_get_next_int(struct prng *gen)
+prng_num prng_icg_get_next_int(struct prng *gen)
 {
   s_prng_num inv, current, prod;
   
--- a/src/lcg.c
+++ b/src/lcg.c
@@ -111,7 +111,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_lcg_get_next_int(struct prng *gen)
+prng_num prng_lcg_get_next_int(struct prng *gen)
 {
   s_prng_num ax, current;
 
--- a/src/meicg.c
+++ b/src/meicg.c
@@ -106,7 +106,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_meicg_get_next_int(struct prng *gen)
+prng_num prng_meicg_get_next_int(struct prng *gen)
 {
   s_prng_num an, sum, inv, n;
 
--- a/src/mt19937.c
+++ b/src/mt19937.c
@@ -172,7 +172,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_mt19937_get_next_int(struct prng *gen)
+prng_num prng_mt19937_get_next_int(struct prng *gen)
 {
 #define MT  gen->data.mt19937_data.mt
 #define MTI gen->data.mt19937_data.mti
--- a/src/prng.h
+++ b/src/prng.h
@@ -406,7 +406,7 @@
 /* INLINE fnk def. for mult_mod, I don't know if this works for non-GCC */
 
 #ifdef __GNUC__
-extern __inline__ prng_num mult_mod(prng_num s,struct mult_mod_struct *mm)
+static inline prng_num mult_mod(prng_num s,struct mult_mod_struct *mm)
 {
 s_prng_num s_tmp;
 
--- a/src/qcg.c
+++ b/src/qcg.c
@@ -107,7 +107,7 @@
  *      gen:  Pointer to a struct prng.
  *
  */
-inline prng_num prng_qcg_get_next_int(struct prng *gen)
+prng_num prng_qcg_get_next_int(struct prng *gen)
 {
   s_prng_num current, sum, square, q_term, l_term;
 
--- a/src/support.c
+++ b/src/support.c
@@ -449,52 +449,6 @@
 		}
 }
 
-#ifndef __cplusplus
-/* 
- * Modular Multiplication. Uses the precalculated values from mult_mod_setup.
- *
- *
- * Input: 
- *	s	An prng_num. 
- *	mm	pointer to a struct mult_mod_struct initialized 
- *		by mult_mod_setup.
- *
- * Output:
- *      (mm->a*s) mod mm->p
- *
- */
-prng_num mult_mod(prng_num s,struct mult_mod_struct *mm)
-{
-s_prng_num s_tmp;
-
-switch(mm->algorithm)
-	{
-	case PRNG_MM_ZERO:	return(0);
-			break;
-	case PRNG_MM_ONE:	return(s);
-			break;
-	case PRNG_MM_SIMPLE: return((s * mm->a) % mm->p );
-			break;
-	case PRNG_MM_SCHRAGE:
-			s_tmp = mm->a * ( s % mm->q ) - 
-				mm->r * ( s / mm->q );
-			if (s_tmp < 0) s_tmp += mm->p;
-			return(s_tmp);
-			break;
-	case PRNG_MM_DECOMP: return(mult_mod_generic(s,mm->a,mm->p)); 
-			break;
-#ifdef HAVE_LONGLONG
-	case PRNG_MM_LL:	return(mult_mod_ll(s,mm->a,mm->p));
-			break;
-#endif
-	case PRNG_MM_POW2:	return((s*mm->a) & mm->mask);
-			break;
-	}
-/* not reached */
-return(0);
-}
-#endif
-
 
 /* 
  * Modular Multiplication: Decomposition method (from L'Ecuyer & Cote)