diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 5a33db7958..cd3c7e1b79 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -21,7 +21,8 @@
                 "_LANGUAGE_C",
                 "_MIPS_SZLONG=32",
                 "SCRIPT(...)={}",
-                "VERSION=us"
+                "VERSION=us",
+                "VERSION_US"
             ],
             "cStandard": "c89",
             "cppStandard": "c++17"
diff --git a/src/is_debug.c b/src/is_debug.c
index 945ebfa08c..df88f0f021 100644
--- a/src/is_debug.c
+++ b/src/is_debug.c
@@ -87,15 +87,20 @@ u32 is_debug_print(void* arg0, const unsigned char* str, u32 count) {
     return 1;
 }
 
+#ifdef VERSION_US
 // Nop issue with the rodata string
-#ifdef NON_MATCHING
+    #ifdef NON_MATCHING
 void func_80025F44(const char* message, char* file, s32 line) {
     osSyncPrintf("File:%s Line:%d  %s \n", file, line, message);
-
-    while (TRUE) {
-        ;
-    }
+    PANIC();
 }
-#else
+    #else
 INCLUDE_ASM(void, "is_debug", func_80025F44, char* arg0, char* file, s32 line);
+    #endif
+#elif VERSION_JP
+extern const char D_80097D10[]; // "File:%s Line:%d  %s \n\0\0\0"
+void func_80025F44(char* arg0, char* file, s32 line, char* arg3) {
+    osSyncPrintf(D_80097D10, file, line, arg0);
+    PANIC();
+}
 #endif
diff --git a/src/jp/1060.c b/src/jp/1060.c
deleted file mode 100644
index fd2e019e94..0000000000
--- a/src/jp/1060.c
+++ /dev/null
@@ -1,87 +0,0 @@
-#include "common.h"
-#include "stdlib/stdarg.h"
-#include "nu/nusys.h"
-
-// TODO: use src/is_debug.c instead as this file is identical between versions
-
-u32 func_80025D74(void* arg0, const unsigned char* str, u32 count);
-
-void func_80025C60(void) {
-    OSPiHandle** handle = &nuPiCartHandle;
-
-    osEPiWriteIo(*handle, 0xB3FF0014, 0);
-    osEPiWriteIo(*handle, 0xB3FF0004, 0);
-    osEPiWriteIo(*handle, 0xB3FF0000, ASCII_TO_U32('I', 'S', '6', '4'));
-}
-
-void func_80025CC0(const char* fmt, ...) {
-    va_list args;
-    va_start(args, fmt);
-
-    _Printf(&func_80025D74, NULL, fmt, args);
-}
-
-void func_80025CFC(const char* fmt, ...) {
-    va_list args;
-    va_start(args, fmt);
-
-    _Printf(&func_80025D74, NULL, fmt, args);
-}
-
-void func_80025D38(const char* fmt, ...) {
-    va_list args;
-    va_start(args, fmt);
-
-    _Printf(&func_80025D74, NULL, fmt, args);
-}
-
-u32 func_80025D74(void* arg0, const unsigned char* str, u32 count) {
-    u32 data;
-    s32 pos;
-    s32 start;
-    s32 end;
-
-    osEPiReadIo(nuPiCartHandle, 0xB3FF0000, &data);
-    if (data != ASCII_TO_U32('I', 'S', '6', '4')) {
-        return 1;
-    }
-    osEPiReadIo(nuPiCartHandle, 0xB3FF0004, &data);
-    pos = data;
-    osEPiReadIo(nuPiCartHandle, 0xB3FF0014, &data);
-    start = data;
-    end = start + count;
-    if (end >= 0xffe0) {
-        end -= 0xffe0;
-        if (pos < end || start < pos) {
-            return 1;
-        }
-    } else {
-        if (start < pos && pos < end) {
-            return 1;
-        }
-    }
-    while (count) {
-        if (*str) {
-            u32 addr = 0xB3FF0020 + (start & 0xffffffc);
-            s32 shift = ((3 - (start & 3)) * 8);
-
-            osEPiReadIo(nuPiCartHandle, addr, &data);
-            osEPiWriteIo(nuPiCartHandle, addr, (data & ~(0xff << shift)) | (*str << shift));
-
-            start++;
-            if (start >= 0xffe0) {
-                start -= 0xffe0;
-            }
-        }
-        count--;
-        str++;
-    }
-    osEPiWriteIo(nuPiCartHandle, 0xB3FF0014, start);
-    return 1;
-}
-
-extern const char D_80097D10[]; // "File:%s Line:%d  %s \n\0\0\0"
-void func_80025F44(char* arg0, char* file, s32 line, char* arg3) {
-    func_80025CFC(D_80097D10, file, line, arg0);
-    PANIC();
-}
diff --git a/tools/build/configure.py b/tools/build/configure.py
index 66838d745d..e67288984a 100755
--- a/tools/build/configure.py
+++ b/tools/build/configure.py
@@ -103,31 +103,31 @@ def write_ninja_rules(ninja: ninja_syntax.Writer, cpp: str, cppflags: str, extra
 
     ninja.rule("cc",
         description="gcc $in",
-        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} -MD -MF $out.d $in -o - | {iconv} > $out.i && {ccache}{cc} {cflags} $cflags $out.i -o $out'",
+        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} $cppflags -MD -MF $out.d $in -o - | {iconv} > $out.i && {ccache}{cc} {cflags} $cflags $out.i -o $out'",
         depfile="$out.d",
         deps="gcc",
     )
 
     ninja.rule("cc_dsl",
         description="dsl $in",
-        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} -MD -MF $out.d $in -o - | {compile_script} | {iconv} > $out.i && {cc} {cflags} $cflags $out.i -o $out'",
+        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} $cppflags -MD -MF $out.d $in -o - | {compile_script} | {iconv} > $out.i && {cc} {cflags} $cflags $out.i -o $out'",
         depfile="$out.d",
         deps="gcc",
     )
 
     ninja.rule("cc_ido",
         description="ido $in",
-        command=f"{ccache}{cc_ido} -w {CPPFLAGS_COMMON} {cppflags} -c -mips1 -O0 -G0 -non_shared -Xfullwarn -Xcpluscomm -o $out $in",
+        command=f"{ccache}{cc_ido} -w {CPPFLAGS_COMMON} {cppflags} $cppflags -c -mips1 -O0 -G0 -non_shared -Xfullwarn -Xcpluscomm -o $out $in",
     )
 
     ninja.rule("cc_kmc",
         description="kmc $in",
-        command=f"bash -o pipefail -c 'N64ALIGN=ON VR4300MUL=ON {cc_kmc} {CPPFLAGS_LIBULTRA} {cppflags} {kmc_cflags} $cflags $in -o $out && mips-linux-gnu-objcopy -N $in $out'",
+        command=f"bash -o pipefail -c 'N64ALIGN=ON VR4300MUL=ON {cc_kmc} {CPPFLAGS_LIBULTRA} {cppflags} $cppflags {kmc_cflags} $cflags $in -o $out && mips-linux-gnu-objcopy -N $in $out'",
     )
 
     ninja.rule("cxx",
         description="cxx $in",
-        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} -MD -MF $out.d $in -o - | {iconv} > $out.i && {ccache}{cxx} {cflags} $cflags $out.i -o $out'",
+        command=f"bash -o pipefail -c '{cpp} {CPPFLAGS} {cppflags} $cppflags -MD -MF $out.d $in -o - | {iconv} > $out.i && {ccache}{cxx} {cflags} $cflags $out.i -o $out'",
         depfile="$out.d",
         deps="gcc",
     )
@@ -398,7 +398,10 @@ class Configure:
 
                 cflags = cflags.replace("kmc", "")
 
-                build(entry.object_path, entry.src_paths, task, variables={"cflags": cflags})
+                build(entry.object_path, entry.src_paths, task, variables={
+                    "cflags": cflags,
+                    "cppflags": f"-DVERSION_{self.version.upper()}",
+                })
 
                 # images embedded inside data aren't linked, but they do need to be built into .inc.c files
                 if isinstance(seg, segtypes.common.group.CommonSegGroup):
diff --git a/ver/jp/asm/nonmatchings/1370/func_80025F70.s b/ver/jp/asm/nonmatchings/1370/func_80025F70.s
index 5f6b0001cc..e43e836947 100644
--- a/ver/jp/asm/nonmatchings/1370/func_80025F70.s
+++ b/ver/jp/asm/nonmatchings/1370/func_80025F70.s
@@ -24,7 +24,7 @@ glabel func_80025F70
 /* 13B8 80025FB8 080097EE */  j         .L80025FB8
 /* 13BC 80025FBC 00000000 */   nop
 .L80025FC0:
-/* 13C0 80025FC0 0C009718 */  jal       func_80025C60
+/* 13C0 80025FC0 0C009718 */  jal       is_debug_init
 /* 13C4 80025FC4 00000000 */   nop
 /* 13C8 80025FC8 0C017C84 */  jal       func_8005F210
 /* 13CC 80025FCC 00000000 */   nop
diff --git a/ver/jp/splat.yaml b/ver/jp/splat.yaml
index 30b5fb7a69..2c4e3e1899 100644
--- a/ver/jp/splat.yaml
+++ b/ver/jp/splat.yaml
@@ -33,7 +33,7 @@ segments:
     subalign: 8
     subsegments:
     - [0x1000, hasm, entry_point]
-    - [0x1060, c, jp/1060] # 1060 (identical)
+    - [0x1060, c, is_debug]
     - [0x1370, c, jp/1370] # 1370
     - [0x1B10, c, jp/1B10] # 1B40
     - [0x2570, c, jp/2570]