experimented a bit for building on classic mac os

qse/lib/awk/parse.c

@@ -5557,6 +5557,11 @@ static int get_string (
 		#endif
 			else if (keep_esc_char) 
 			{
+				/* if the following character doesn't compose a proper
+				 * escape sequence, keep the escape character. 
+				 * an unhandled escape sequence can be handled 
+				 * outside this function since the escape character 
+				 * is preserved.*/
 				ADD_TOKEN_CHAR (awk, tok, esc_char);
 			}
 
@@ -5597,13 +5602,13 @@ static int get_rexstr (qse_awk_t* awk, qse_awk_tok_t* tok)
 	}
 	else 
 	{
-		int escaped = 0;
+		qse_size_t preescaped = 0;
 		if (awk->sio.last.c == QSE_T('\\')) 
 		{		
 			/* for input like /\//, this condition is met. 
 			 * the initial escape character is added when the
 			 * second charater is handled in get_string() */
-			escaped = 1;
+			preescaped = 1;
 		}
 		else 
 		{
@@ -5611,8 +5616,7 @@ static int get_rexstr (qse_awk_t* awk, qse_awk_tok_t* tok)
 			 * begins with reading the next character */
 			ADD_TOKEN_CHAR (awk, tok, awk->sio.last.c);
 		}
-		return get_string (
-			awk, QSE_T('/'), QSE_T('\\'), 1, escaped, tok);
+		return get_string (awk, QSE_T('/'), QSE_T('\\'), 1, preescaped, tok);
 	}
 }
 

qse/lib/cmn/alg-base64.c

@@ -18,7 +18,11 @@
     License along with QSE. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <qse/cmn/alg.h>
+#if defined(macintosh)
+#	include <:qse:cmn:alg.h>
+#else
+#	include <qse/cmn/alg.h>
+#endif
 
 #define ENC(x) \
 	((x < 26)? (QSE_MT('A') + x): \

qse/lib/cmn/alg-rand.c

@@ -18,7 +18,11 @@
     License along with QSE. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <qse/cmn/alg.h>
+#if defined(macintosh)
+#	include <:qse:cmn:alg.h>
+#else
+#	include <qse/cmn/alg.h>
+#endif
 
 /* Park-Miller "minimal standard" 31 bit 
  * pseudo-random number generator, implemented

qse/lib/cmn/alg-search.c

@@ -18,7 +18,11 @@
     License along with QSE. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <qse/cmn/alg.h>
+#if defined(macintosh)
+#	include <:qse:cmn:alg.h>
+#else
+#	include <qse/cmn/alg.h>
+#endif
 
 void* qse_bsearch (
 	const void *key, const void *base, qse_size_t nmemb,

qse/lib/cmn/alg-sort.c

@@ -47,7 +47,11 @@
  * SUCH DAMAGE.
  */
 
+#if defined(macintosh)
+#include <:qse:cmn:alg.h>
+#else
 #include <qse/cmn/alg.h>
+#endif
 
 #define qsort_min(a,b) (((a)<(b))? a: b)