diff --git a/bwt.c b/bwt.c
index fcc141e..966b718 100644
--- a/bwt.c
+++ b/bwt.c
@@ -95,7 +95,7 @@ static inline int __occ_aux(uint64_t y, int c)
 	return ((y + (y >> 4)) & 0xf0f0f0f0f0f0f0full) * 0x101010101010101ull >> 56;
 }
 
-inline bwtint_t bwt_occ(const bwt_t *bwt, bwtint_t k, ubyte_t c)
+bwtint_t bwt_occ(const bwt_t *bwt, bwtint_t k, ubyte_t c)
 {
 	bwtint_t n, l, j;
 	uint32_t *p;
@@ -121,7 +121,7 @@ inline bwtint_t bwt_occ(const bwt_t *bwt, bwtint_t k, ubyte_t c)
 }
 
 // an analogy to bwt_occ() but more efficient, requiring k <= l
-inline void bwt_2occ(const bwt_t *bwt, bwtint_t k, bwtint_t l, ubyte_t c, bwtint_t *ok, bwtint_t *ol)
+void bwt_2occ(const bwt_t *bwt, bwtint_t k, bwtint_t l, ubyte_t c, bwtint_t *ok, bwtint_t *ol)
 {
 	bwtint_t _k, _l;
 	_k = (k >= bwt->primary)? k-1 : k;
@@ -158,7 +158,7 @@ inline void bwt_2occ(const bwt_t *bwt, bwtint_t k, bwtint_t l, ubyte_t c, bwtint
 	((bwt)->cnt_table[(b)&0xff] + (bwt)->cnt_table[(b)>>8&0xff]		\
 	 + (bwt)->cnt_table[(b)>>16&0xff] + (bwt)->cnt_table[(b)>>24])
 
-inline void bwt_occ4(const bwt_t *bwt, bwtint_t k, bwtint_t cnt[4])
+void bwt_occ4(const bwt_t *bwt, bwtint_t k, bwtint_t cnt[4])
 {
 	bwtint_t l, j, x;
 	uint32_t *p;
@@ -178,7 +178,7 @@ inline void bwt_occ4(const bwt_t *bwt, bwtint_t k, bwtint_t cnt[4])
 }
 
 // an analogy to bwt_occ4() but more efficient, requiring k <= l
-inline void bwt_2occ4(const bwt_t *bwt, bwtint_t k, bwtint_t l, bwtint_t cntk[4], bwtint_t cntl[4])
+void bwt_2occ4(const bwt_t *bwt, bwtint_t k, bwtint_t l, bwtint_t cntk[4], bwtint_t cntl[4])
 {
 	bwtint_t _k, _l;
 	_k = (k >= bwt->primary)? k-1 : k;
diff --git a/bwt_lite.c b/bwt_lite.c
index dd411e1..902e0fc 100644
--- a/bwt_lite.c
+++ b/bwt_lite.c
@@ -65,7 +65,7 @@ inline uint32_t bwtl_occ(const bwtl_t *bwt, uint32_t k, uint8_t c)
 	if (c == 0) n -= 15 - (k&15); // corrected for the masked bits
 	return n;
 }
-inline void bwtl_occ4(const bwtl_t *bwt, uint32_t k, uint32_t cnt[4])
+void bwtl_occ4(const bwtl_t *bwt, uint32_t k, uint32_t cnt[4])
 {
 	uint32_t x, b;
 	if (k == (uint32_t)(-1)) {
@@ -80,7 +80,7 @@ inline void bwtl_occ4(const bwtl_t *bwt, uint32_t k, uint32_t cnt[4])
 	x -= 15 - (k&15);
 	cnt[0] += x&0xff; cnt[1] += x>>8&0xff; cnt[2] += x>>16&0xff; cnt[3] += x>>24;
 }
-inline void bwtl_2occ4(const bwtl_t *bwt, uint32_t k, uint32_t l, uint32_t cntk[4], uint32_t cntl[4])
+void bwtl_2occ4(const bwtl_t *bwt, uint32_t k, uint32_t l, uint32_t cntk[4], uint32_t cntl[4])
 {
 	bwtl_occ4(bwt, k, cntk);
 	bwtl_occ4(bwt, l, cntl);