GCC 2.7 support

Makefile

@@ -187,18 +187,16 @@ ifndef DISABLE_MMD
 DEPFLAGS = -MMD -MP -MF $(@:.o=.d)
 endif
 
-FORCE:
+# trigger configure re-run if $(CC) changes
+_dummy := $(shell \
+	printf '$(CC)' > compat/tmp/cc-new; \
+	cmp -s compat/tmp/cc-new compat/tmp/cc || \
+	mv compat/tmp/cc-new compat/tmp/cc; \
+	rm -f compat/tmp/cc-new \
+)
 
 compat/config.mk: compat/configure.sh compat/tmp/cc
-	@$(MAKE) distclean > /dev/null
 	@CC="$(CC)" $(SHELL) compat/configure.sh
-	@$(MAKE)
-	@exit 0
-
-compat/tmp/cc: FORCE
-	@printf '$(CC)' > compat/tmp/cc-new
-	@cmp -s compat/tmp/cc-new compat/tmp/cc || mv compat/tmp/cc-new compat/tmp/cc
-	@rm -f compat/tmp/cc-new
 
 endif
 
@@ -213,4 +211,4 @@ clean:
 	rm -rf build
 
 distclean: clean
-	rm -f compat/config.mk
+	rm -f compat/config.mk compat/tmp/cc

compat/configure.sh

@@ -40,7 +40,7 @@ check 'if the C compiler works' || exit 1
 
 printf 'checking if we are cross compiling: '
 printf 'checking if we are cross compiling:\n' >> tmp/config.log
-if tmp/a.out; then
+if tmp/a.out > /dev/null 2>&1; then
     printf 'no\n'
     printf 'result: no\n' >> tmp/config.log
 else
@@ -55,7 +55,7 @@ if check 'for librt' -lrt; then
 fi
 
 if check 'for libdl' -ldl; then
-    # sometimes needed for glad
+    # sometimes needed for glad or miniaudio
     config 'LIBS += -ldl'
 fi
 
@@ -92,4 +92,16 @@ if ! check 'if stdbool.h works'; then
     config 'INCLUDES += -Icompat/stdbool'
 fi
 
+printf '%s' "\
+#include <stdio.h>
+int main(void){
+  puts(__func__);
+  return 0;
+}
+" > tmp/test.c
+
+if ! check 'if __func__ works'; then
+    config 'DEFINES += -D__func__=\"unknown\"'
+fi
+
 rm -f tmp/test.c tmp/a.out

src/rvalue.h

@@ -79,6 +79,7 @@ struct RValue {
         GMLMethod* method;
 #endif
         Instance* structInst;
+        double _alignment_dont_use;
     };
     // We use uint8_t for the type instead of RValueType because a enum value occupies 4 bytes, while uint8_t occupies 1 byte
     uint8_t type;
@@ -88,7 +89,7 @@ struct RValue {
     bool ownsReference;
     uint8_t gmlStackType; // GML data type from the instruction that pushed this value
     uint8_t assetRefType; // For RVALUE_ASSETREF: Indicates the asset type (AssetRefType)
-} __attribute__((aligned(8)));
+};
 
 static inline RValue RValue_makeReal(GMLReal val) {
     RValue rv = {0};

vendor/stb/ds/stb_ds.h

@@ -687,7 +687,7 @@ enum
    STBDS_SH_ARENA
 };
 
-#ifdef __cplusplus
+#if defined(__cplusplus) && (!defined(__GNUC__) || __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
 // in C we use implicit assignment from these void*-returning functions to T*.
 // in C++ these templates make the same code work
 template<class T> static T * stbds_arrgrowf_wrapper(T *a, size_t elemsize, size_t addlen, size_t min_cap) {