linux fixes

Author: robertkist

Makefile

@@ -1,5 +1,5 @@
 # default MingW path for Qt 6.3.x:
-WIN_MINGW_BIN_PATH=C:\\Qt\\Tools\\mingw1120_64\\bin
+WIN_MINGW_BIN_PATH=C:\\Qt\\Tools\\mingw1310_64\\bin
 
 LIB_VERSION=2025.07.07a
 
@@ -19,7 +19,7 @@ OBJ=$(patsubst %.c, $(OBJDIR)/%.o, $(SRC))
 OBJFILES=$(patsubst %.c, %.o, $(SRC))
 
 CFLAGS=-std=c11 -Wall -Wextra -Wconversion -Wshadow -Wstrict-overflow -Wformat=2 -Wundef -fno-common -O3 -Os \
-		        -Wpedantic -pedantic -Werror -Wno-unused-variable -Wno-unused-parameter -Wno-unused-but-set-variable -D"LIB_VERSION=\"$(LIB_VERSION)\""
+		        -Wpedantic -pedantic -Werror -Wno-int-to-pointer-cast -D"LIB_VERSION=\"$(LIB_VERSION)\""
 
 ifdef OS  # Windows:
 define fn_mkdir

src/libdither/kdtree/kdtree.c

@@ -34,7 +34,12 @@ OF SUCH DAMAGE.
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#include <malloc.h>
+#else
 #include <alloca.h>
+#endif
+
 #include "kdtree.h"
 
 #if defined(WIN32) || defined(__WIN32__)

src/libdither/tetrapal/tetrapal.c

@@ -1757,11 +1757,11 @@ int tetrapal_number_of_elements(const Tetrapal* tetrapal)
 		for (size_t i = 0; i < tetrapal->simplices.count; i++)
 		{
 			/* Skip infinite simplices. */
-			if (is_infinite_simplex(tetrapal, i) == true)
+			if (is_infinite_simplex(tetrapal, (simplex_t)i) == true)
 				continue;
 
 			/* Skip free simplices. */
-			if (is_free_simplex(tetrapal, i) == true)
+			if (is_free_simplex(tetrapal, (simplex_t)i) == true)
 				continue;
 
 			count += 1;
@@ -1818,11 +1818,11 @@ int tetrapal_get_elements(const Tetrapal* tetrapal, int* buffer)
 		for (size_t i = 0; i < tetrapal->simplices.count; i++)
 		{
 			/* Skip infinite simplices. */
-			if (is_infinite_simplex(tetrapal, i) == true)
+			if (is_infinite_simplex(tetrapal, (simplex_t)i) == true)
 				continue;
 
 			/* Skip free simplices. */
-			if (is_free_simplex(tetrapal, i) == true)
+			if (is_free_simplex(tetrapal, (simplex_t)i) == true)
 				continue;
 
 			for (int j = 0; j < stride; j++)
@@ -2150,12 +2150,12 @@ static size_t find_first_simplex(Tetrapal* tetrapal, const float* points, const
 static inline long xrandom(random_t* seed)
 {
 	*seed = 214013u * *seed + 2531011u;
-	return (*seed >> 16) & RANDOM_MAX;
+	return (long int)((*seed >> 16) & RANDOM_MAX);
 }
 
 static inline random_t random_range(random_t* seed, random_t range)
 {
-	return (size_t)xrandom(seed) / (RANDOM_MAX / range + 1);
+	return (random_t)((size_t)xrandom(seed) / (RANDOM_MAX / range + 1));
 }
 
 static inline void swap_vertex(vertex_t* a, vertex_t* b)