No more _HEX integer subtypes. They have been eliminated upstream also

README.md

@@ -85,9 +85,14 @@ prior to invoking `make`. The following build variables can be configured:
 
  - `CPPFLAGS`: C preprocessor flags, such as externally defined compiler constants.
 
- - `CFLAGS`: Flags to pass onto the C compiler (default: `-Os -Wall -std=c99`). Note, `-Iinclude` will be added 
+ - `CFLAGS`: Flags to pass onto the C compiler (default: `-g -Os -Wall`). Note, `-Iinclude` will be added 
    automatically.
 
+ - `CSTANDARD`: Optionally, specify the C standard to compile for, e.g. `c99` to compile for the C99 standard. If
+   defined then `-std=$(CSTANDARD)` is added to `CFLAGS` automatically.
+
+ - `WEXTRA`: If set to 1, `-Wextra` is added to `CFLAGS` automatically.
+
  - `LDFLAGS`: Extra linker flags (default: _not set_). Note, `-lm -pthread -lsmax -lredisx -lxchange -lpq -lpopt` will 
    be added automatically.
 

config.mk

@@ -49,10 +49,17 @@ CPPFLAGS += -I$(INC)
 #CPPFLAGS += -DTIMESCALEDB_OLD=1
 
 # Base compiler options (if not defined externally...)
-CFLAGS ?= -g -Os -Wall -std=c99
+CFLAGS ?= -g -Os -Wall
+
+# Compile for specific C standard
+ifdef CSTANDARD
+  CFLAGS += -std=$(CSTANDARD)
+endif
 
 # Extra warnings (not supported on all compilers)
-#CFLAGS += -Wextra
+ifeq ($(WEXTRA), 1) 
+  CFLAGS += -Wextra
+endif
 
 # Link against math libs (for e.g. isnan())
 LDFLAGS ?= -lm

src/postgres-backend.c

@@ -500,16 +500,12 @@ static int printSQLType(XType type, char *dst) {
     case X_BOOLEAN:
       return sprintf(dst, SQL_BOOLEAN);
     case X_BYTE:
-    case X_BYTE_HEX:
       return sprintf(dst, SQL_INT8);
     case X_SHORT:
-    case X_SHORT_HEX:
       return sprintf(dst, SQL_INT16);
     case X_INT:
-    case X_INT_HEX:
       return sprintf(dst, SQL_INT32);
     case X_LONG:
-    case X_LONG_HEX:
       return sprintf(dst, SQL_INT64);
     case X_FLOAT:
       return sprintf(dst, SQL_FLOAT);
@@ -611,17 +607,13 @@ static char *appendValue(const void *data, XType type, char *dst) {
 
     case X_BOOLEAN: return dst + sprintf(dst, "%s",*(boolean *) data ? "true" : "false");
 
-    case X_BYTE:
-    case X_BYTE_HEX: return dst + sprintf(dst, "%hhd", *(char *) data);
+    case X_BYTE: return dst + sprintf(dst, "%hhd", *(char *) data);
 
-    case X_SHORT:
-    case X_SHORT_HEX: return dst + sprintf(dst, "%hd", *(int16_t *) data);
+    case X_SHORT: return dst + sprintf(dst, "%hd", *(int16_t *) data);
 
-    case X_INT:
-    case X_INT_HEX: return dst + sprintf(dst, "%d", *(int32_t *) data);
+    case X_INT: return dst + sprintf(dst, "%d", *(int32_t *) data);
 
-    case X_LONG:
-    case X_LONG_HEX: return dst + sprintf(dst, "%ld", *(int64_t *) data);
+    case X_LONG: return dst + sprintf(dst, "%ld", *(int64_t *) data);
 
     case X_FLOAT: {
       float f = *(float *) data;