diff --git a/compiler/project.xml b/compiler/project.xml
index 2b6fe0c..ddcfb44 100644
--- a/compiler/project.xml
+++ b/compiler/project.xml
@@ -7,7 +7,8 @@
     <mainSource>Blaise.pas</mainSource>
     <executableName>blaise</executableName>
     <unitPaths>
-      <path>../runtime/src/main/pascal</path>
+      <!-- RTL units (runtime.*) now live in this module's own source dir;
+           only stdlib remains a separate unit-path. -->
       <path>../stdlib/src/main/pascal</path>
     </unitPaths>
   </build>
@@ -15,7 +16,6 @@
   <test>
     <testSource>TestRunner.pas</testSource>
     <unitPaths>
-      <path>../runtime/src/main/pascal</path>
       <path>../stdlib/src/main/pascal</path>
     </unitPaths>
   </test>
diff --git a/runtime/src/main/pascal/rtl.platform.layout.linux.pas b/compiler/src/main/pascal/rtl.platform.layout.linux.pas
similarity index 100%
rename from runtime/src/main/pascal/rtl.platform.layout.linux.pas
rename to compiler/src/main/pascal/rtl.platform.layout.linux.pas
diff --git a/runtime/src/main/pascal/rtl.platform.pas b/compiler/src/main/pascal/rtl.platform.pas
similarity index 100%
rename from runtime/src/main/pascal/rtl.platform.pas
rename to compiler/src/main/pascal/rtl.platform.pas
diff --git a/runtime/src/main/pascal/rtl.platform.posix.pas b/compiler/src/main/pascal/rtl.platform.posix.pas
similarity index 100%
rename from runtime/src/main/pascal/rtl.platform.posix.pas
rename to compiler/src/main/pascal/rtl.platform.posix.pas
diff --git a/runtime/src/main/pascal/blaise_arc.pas b/compiler/src/main/pascal/runtime.arc.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_arc.pas
rename to compiler/src/main/pascal/runtime.arc.pas
index 7324101..141cb67 100644
--- a/runtime/src/main/pascal/blaise_arc.pas
+++ b/compiler/src/main/pascal/runtime.arc.pas
@@ -31,7 +31,7 @@
   destruction -- no TOCTOU race.
 }
 
-unit blaise_arc;
+unit runtime.arc;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_atomic.pas b/compiler/src/main/pascal/runtime.atomic.pas
similarity index 98%
rename from runtime/src/main/pascal/blaise_atomic.pas
rename to compiler/src/main/pascal/runtime.atomic.pas
index e33e364..d3f8e7f 100644
--- a/runtime/src/main/pascal/blaise_atomic.pas
+++ b/compiler/src/main/pascal/runtime.atomic.pas
@@ -6,7 +6,7 @@
   See LICENSE file in the project root for full license terms.
 }
 
-unit blaise_atomic;
+unit runtime.atomic;
 
 // Atomic 32-bit add/sub primitives used by ARC reference counting.
 //
diff --git a/runtime/src/main/pascal/blaise_exc.pas b/compiler/src/main/pascal/runtime.exc.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_exc.pas
rename to compiler/src/main/pascal/runtime.exc.pas
index 390e7ea..6eff692 100644
--- a/runtime/src/main/pascal/blaise_exc.pas
+++ b/compiler/src/main/pascal/runtime.exc.pas
@@ -27,7 +27,7 @@
   threadvar, giving each thread its own exception chain.
 }
 
-unit blaise_exc;
+unit runtime.exc;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_float.pas b/compiler/src/main/pascal/runtime.float.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_float.pas
rename to compiler/src/main/pascal/runtime.float.pas
index 2b74549..407dda6 100644
--- a/runtime/src/main/pascal/blaise_float.pas
+++ b/compiler/src/main/pascal/runtime.float.pas
@@ -24,7 +24,7 @@
     data_ptr +  0 : char data + NUL
 }
 
-unit blaise_float;
+unit runtime.float;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_mem.pas b/compiler/src/main/pascal/runtime.mem.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_mem.pas
rename to compiler/src/main/pascal/runtime.mem.pas
index 0a65305..2578933 100644
--- a/runtime/src/main/pascal/blaise_mem.pas
+++ b/compiler/src/main/pascal/runtime.mem.pas
@@ -44,7 +44,7 @@
     go to the wrong thread's list).
 }
 
-unit blaise_mem;
+unit runtime.mem;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_set.pas b/compiler/src/main/pascal/runtime.set.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_set.pas
rename to compiler/src/main/pascal/runtime.set.pas
index 91140db..e592a60 100644
--- a/runtime/src/main/pascal/blaise_set.pas
+++ b/compiler/src/main/pascal/runtime.set.pas
@@ -28,7 +28,7 @@
   writing Dest[i], so full overlap is safe.
 }
 
-unit blaise_set;
+unit runtime.set;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_setjmp.pas b/compiler/src/main/pascal/runtime.setjmp.pas
similarity index 98%
rename from runtime/src/main/pascal/blaise_setjmp.pas
rename to compiler/src/main/pascal/runtime.setjmp.pas
index 1f72366..2a7d9a3 100644
--- a/runtime/src/main/pascal/blaise_setjmp.pas
+++ b/compiler/src/main/pascal/runtime.setjmp.pas
@@ -6,7 +6,7 @@
   See LICENSE file in the project root for full license terms.
 }
 
-unit blaise_setjmp;
+unit runtime.setjmp;
 
 // setjmp/longjmp for the exception runtime (try/except, try/finally).
 //
diff --git a/runtime/src/main/pascal/blaise_start.pas b/compiler/src/main/pascal/runtime.start.pas
similarity index 98%
rename from runtime/src/main/pascal/blaise_start.pas
rename to compiler/src/main/pascal/runtime.start.pas
index b141b55..8c869aa 100644
--- a/runtime/src/main/pascal/blaise_start.pas
+++ b/compiler/src/main/pascal/runtime.start.pas
@@ -6,7 +6,7 @@
   See LICENSE file in the project root for full license terms.
 }
 
-unit blaise_start;
+unit runtime.start;
 
 // Program entry point (x86_64, System V ABI, glibc-compatible).
 //
diff --git a/runtime/src/main/pascal/blaise_str.pas b/compiler/src/main/pascal/runtime.str.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_str.pas
rename to compiler/src/main/pascal/runtime.str.pas
index 94cf3e3..2b4707a 100644
--- a/runtime/src/main/pascal/blaise_str.pas
+++ b/compiler/src/main/pascal/runtime.str.pas
@@ -29,7 +29,7 @@
   RefCount = -1 marks immortal (statically-allocated string literals).
 }
 
-unit blaise_str;
+unit runtime.str;
 
 interface
 
diff --git a/runtime/src/main/pascal/blaise_thread.pas b/compiler/src/main/pascal/runtime.thread.pas
similarity index 98%
rename from runtime/src/main/pascal/blaise_thread.pas
rename to compiler/src/main/pascal/runtime.thread.pas
index 8d3077c..6fe6c19 100644
--- a/runtime/src/main/pascal/blaise_thread.pas
+++ b/compiler/src/main/pascal/runtime.thread.pas
@@ -6,7 +6,7 @@
   See LICENSE file in the project root for full license terms.
 }
 
-unit blaise_thread;
+unit runtime.thread;
 
 { POSIX thread primitives — direct bindings to pthread and sysconf.
   No C shim required; all functions use the standard C ABI which QBE
diff --git a/runtime/src/main/pascal/blaise_utf8.pas b/compiler/src/main/pascal/runtime.utf8.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_utf8.pas
rename to compiler/src/main/pascal/runtime.utf8.pas
index 995d231..7e73405 100644
--- a/runtime/src/main/pascal/blaise_utf8.pas
+++ b/compiler/src/main/pascal/runtime.utf8.pas
@@ -6,7 +6,7 @@
   See LICENSE file in the project root for full license terms.
 }
 
-unit blaise_utf8;
+unit runtime.utf8;
 
 // UTF-8 code-point counter — SIMD-accelerated (AVX2 with an SSE2 fallback and
 // a scalar tail), with a one-time CPUID probe for AVX2.
diff --git a/runtime/src/main/pascal/blaise_weak.pas b/compiler/src/main/pascal/runtime.weak.pas
similarity index 99%
rename from runtime/src/main/pascal/blaise_weak.pas
rename to compiler/src/main/pascal/runtime.weak.pas
index 2436ae1..5001698 100644
--- a/runtime/src/main/pascal/blaise_weak.pas
+++ b/compiler/src/main/pascal/runtime.weak.pas
@@ -40,7 +40,7 @@
                                     runs and before the block is freed.
 }
 
-unit blaise_weak;
+unit runtime.weak;
 
 interface
 
diff --git a/runtime/src/main/pascal/system.pas b/compiler/src/main/pascal/system.pas
similarity index 100%
rename from runtime/src/main/pascal/system.pas
rename to compiler/src/main/pascal/system.pas
diff --git a/compiler/src/test/pascal/cp.test.assembler.pas b/compiler/src/test/pascal/cp.test.assembler.pas
index b932f23..58c6cbb 100644
--- a/compiler/src/test/pascal/cp.test.assembler.pas
+++ b/compiler/src/test/pascal/cp.test.assembler.pas
@@ -750,7 +750,7 @@ begin
     FCompiler := '/tmp/fp_blaise2';
   if not FileExists(FCompiler) then
     FCompiler := '/tmp/fp_blaise3';
-  FRTLPath := ProjectRoot() + 'runtime/src/main/pascal';
+  FRTLPath := ProjectRoot() + 'compiler/src/main/pascal';
   FStdlibPath := ProjectRoot() + 'stdlib/src/main/pascal';
   FRTL := ProjectRoot() + 'compiler/target/blaise_rtl.a';
   FScratch := ProjectRoot() + 'compiler/target/asm_scratch/';
diff --git a/compiler/src/test/pascal/cp.test.cli.pas b/compiler/src/test/pascal/cp.test.cli.pas
index 78f1705..dcffbbf 100644
--- a/compiler/src/test/pascal/cp.test.cli.pas
+++ b/compiler/src/test/pascal/cp.test.cli.pas
@@ -142,7 +142,7 @@ begin
     FCompiler := '/tmp/fp_blaise3';
   if not FileExists(FCompiler) then
     FCompiler := '/tmp/fp_blaise2';
-  FRTLPath := ProjectRoot() + 'runtime/src/main/pascal';
+  FRTLPath := ProjectRoot() + 'compiler/src/main/pascal';
   FStdlibPath := ProjectRoot() + 'stdlib/src/main/pascal';
   FRTL := ProjectRoot() + 'compiler/target/blaise_rtl.a';
   FScratch := ProjectRoot() + 'compiler/target/cli_scratch/';
diff --git a/compiler/src/test/pascal/cp.test.config.pas b/compiler/src/test/pascal/cp.test.config.pas
index a76ce43..ab27873 100644
--- a/compiler/src/test/pascal/cp.test.config.pas
+++ b/compiler/src/test/pascal/cp.test.config.pas
@@ -181,11 +181,11 @@ begin
   Lines := TStringList.Create();
   Paths := TStringList.Create();
   try
-    Lines.Add('unit-path=../../runtime/src/main/pascal');
+    Lines.Add('unit-path=../../compiler/src/main/pascal');
     ParseConfigLines(Lines, '/data/devel/new-pascal-compiler/compiler/target/', Paths);
     AssertEquals('one path', 1, Paths.Count);
     AssertEquals('resolved',
-      '/data/devel/new-pascal-compiler/compiler/target/../../runtime/src/main/pascal',
+      '/data/devel/new-pascal-compiler/compiler/target/../../compiler/src/main/pascal',
       Paths.Strings[0]);
   finally
     Lines.Free();
diff --git a/compiler/src/test/pascal/cp.test.e2e.base.pas b/compiler/src/test/pascal/cp.test.e2e.base.pas
index 556490e..bdc0297 100644
--- a/compiler/src/test/pascal/cp.test.e2e.base.pas
+++ b/compiler/src/test/pascal/cp.test.e2e.base.pas
@@ -189,7 +189,9 @@ begin
   FRTL := GetEnvironmentVariable('BLAISE_RTL');
   if FRTL = '' then
     FRTL := ProjectRoot() + 'runtime/target/blaise_rtl.a';
-  FRTLUnitPath := ProjectRoot() + 'runtime/src/main/pascal';
+  { RTL units (runtime.*, rtl.platform.*) now live in the compiler's own source
+    tree after the RTL-unification move; the old runtime/src/main/pascal is empty. }
+  FRTLUnitPath := ProjectRoot() + 'compiler/src/main/pascal';
   FStdlibUnitPath := ProjectRoot() + 'stdlib/src/main/pascal'
 end;
 
diff --git a/compiler/src/test/pascal/cp.test.e2e.leakcheck.pas b/compiler/src/test/pascal/cp.test.e2e.leakcheck.pas
index 27d2df0..cc0f720 100644
--- a/compiler/src/test/pascal/cp.test.e2e.leakcheck.pas
+++ b/compiler/src/test/pascal/cp.test.e2e.leakcheck.pas
@@ -71,7 +71,7 @@ const
   { A clean program: object is created and properly released by ARC at scope exit. }
   SrcNoLeak = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TBox = class
         Value: Integer;
@@ -92,7 +92,7 @@ const
     use-after-free.  With the fix it is freed exactly once: no leak, no crash. }
   SrcExceptionHandlerVar = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       Exception = class
         FMessage: string;
@@ -116,7 +116,7 @@ const
   { Constructor with args — must not double-AddRef; object must be clean after scope. }
   SrcConstructorWithArgs = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TBox = class
         Value: Integer;
@@ -137,7 +137,7 @@ const
   { Deliberately leaked: object assigned to a raw Pointer, bypassing ARC release. }
   SrcOneLeak = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TBox = class
         Value: Integer;
@@ -157,7 +157,7 @@ const
   { Two distinct classes leaked to verify count and class-name reporting. }
   SrcTwoLeaks = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TAlpha = class
         X: Integer;
@@ -182,7 +182,7 @@ const
   { Reference cycle: each object holds the other — both leak. }
   SrcCycleLeak = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TNode = class
         Other: TNode;
@@ -204,7 +204,7 @@ const
     line number where the leaking TBox.Create() call was made. }
   SrcLeakWithSite = '''
     program LeakSite;
-    uses blaise_arc;
+    uses runtime.arc;
     type
       TBox = class
         Value: Integer;
@@ -222,7 +222,7 @@ const
     Extra AddRef prevents scope-exit release from freeing it. }
   SrcStringLeak = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     var
       S: string;
     begin
@@ -235,7 +235,7 @@ const
   { Clean string usage: no leak expected — scope-exit ARC releases properly. }
   SrcStringClean = '''
     program P;
-    uses blaise_arc;
+    uses runtime.arc;
     var
       S: string;
     begin
@@ -297,7 +297,7 @@ const
     allocation site as 'generics.collections:<line>', not '<program>:<line>'. }
   SrcGenericAllocSite = '''
     program LeakGen;
-    uses blaise_arc, generics.collections;
+    uses runtime.arc, generics.collections;
     var
       L: TList<Integer>;
       E: TListEnumerator<Integer>;
diff --git a/compiler/src/test/pascal/cp.test.linker.pas b/compiler/src/test/pascal/cp.test.linker.pas
index 35f5c81..7c89fcf 100644
--- a/compiler/src/test/pascal/cp.test.linker.pas
+++ b/compiler/src/test/pascal/cp.test.linker.pas
@@ -349,12 +349,12 @@ begin
     AssertTrue('expected several RTL members, got '
       + IntToStr(Members.Count), Members.Count >= 5);
     { A member whose name exceeds 15 chars exercises the GNU long-name (//)
-      table.  rtl_platform_layout_linux.o is the longest current RTL member. }
+      table.  rtl.platform.layout.linux.o is the longest current RTL member. }
     SawLongName := False;
     for I := 0 to Members.Count - 1 do
     begin
       M := Members.Get(I);
-      if M.Name = 'rtl_platform_layout_linux.o' then
+      if M.Name = 'rtl.platform.layout.linux.o' then
         SawLongName := True;
       { Every member must parse as a valid x86-64 relocatable object
         with at least its NULL section + one real section. }
@@ -366,7 +366,7 @@ begin
         Obj.Free();
       end;
     end;
-    AssertTrue('long-named member rtl_platform_layout_linux.o not found '
+    AssertTrue('long-named member rtl.platform.layout.linux.o not found '
       + '(GNU long-name table mishandled?)', SawLongName);
   finally
     for I := 0 to Members.Count - 1 do
@@ -1230,7 +1230,7 @@ procedure TInternalLinkerE2ETests.SetUp;
 begin
   inherited SetUp();
   FCompiler := ProjectRoot() + 'compiler/target/blaise';
-  FRTLPath := ProjectRoot() + 'runtime/src/main/pascal';
+  FRTLPath := ProjectRoot() + 'compiler/src/main/pascal';
   FStdlibPath := ProjectRoot() + 'stdlib/src/main/pascal';
   FScratch := ProjectRoot() + 'compiler/target/intlink_scratch/';
   ForceDirectories(FScratch);
diff --git a/compiler/src/test/pascal/cp.test.math.pas b/compiler/src/test/pascal/cp.test.math.pas
index 8b09262..190c4c6 100644
--- a/compiler/src/test/pascal/cp.test.math.pas
+++ b/compiler/src/test/pascal/cp.test.math.pas
@@ -192,7 +192,7 @@ var
 begin
   inherited SetUp();
   ExeDir := ExtractFilePath(ParamStr(0));
-  FRTLUnitPath := ExpandFileName(ExeDir + '../../runtime/src/main/pascal');
+  FRTLUnitPath := ExpandFileName(ExeDir + '../../compiler/src/main/pascal');
   FStdlibUnitPath := ExpandFileName(ExeDir + '../../stdlib/src/main/pascal');
 end;
 
diff --git a/compiler/src/test/pascal/cp.test.numerics.decimal.pas b/compiler/src/test/pascal/cp.test.numerics.decimal.pas
index 11b3e24..4327882 100644
--- a/compiler/src/test/pascal/cp.test.numerics.decimal.pas
+++ b/compiler/src/test/pascal/cp.test.numerics.decimal.pas
@@ -91,7 +91,7 @@ var
 begin
   inherited SetUp();
   ExeDir := ExtractFilePath(ParamStr(0));
-  FRTLUnitPath := ExpandFileName(ExeDir + '../../runtime/src/main/pascal');
+  FRTLUnitPath := ExpandFileName(ExeDir + '../../compiler/src/main/pascal');
   FStdlibUnitPath := ExpandFileName(ExeDir + '../../stdlib/src/main/pascal');
 end;
 
diff --git a/compiler/src/test/pascal/cp.test.numerics.money.pas b/compiler/src/test/pascal/cp.test.numerics.money.pas
index 014b42f..6228439 100644
--- a/compiler/src/test/pascal/cp.test.numerics.money.pas
+++ b/compiler/src/test/pascal/cp.test.numerics.money.pas
@@ -79,7 +79,7 @@ var
 begin
   inherited SetUp();
   ExeDir := ExtractFilePath(ParamStr(0));
-  FRTLUnitPath := ExpandFileName(ExeDir + '../../runtime/src/main/pascal');
+  FRTLUnitPath := ExpandFileName(ExeDir + '../../compiler/src/main/pascal');
   FStdlibUnitPath := ExpandFileName(ExeDir + '../../stdlib/src/main/pascal');
 end;
 
diff --git a/compiler/src/test/pascal/cp.test.strutils.pas b/compiler/src/test/pascal/cp.test.strutils.pas
index 03760c8..747b611 100644
--- a/compiler/src/test/pascal/cp.test.strutils.pas
+++ b/compiler/src/test/pascal/cp.test.strutils.pas
@@ -122,7 +122,7 @@ var
 begin
   inherited SetUp();
   ExeDir := ExtractFilePath(ParamStr(0));
-  FRTLUnitPath := ExpandFileName(ExeDir + '../../runtime/src/main/pascal');
+  FRTLUnitPath := ExpandFileName(ExeDir + '../../compiler/src/main/pascal');
   FStdlibUnitPath := ExpandFileName(ExeDir + '../../stdlib/src/main/pascal');
 end;
 
diff --git a/runtime/Makefile b/runtime/Makefile
index 60847d3..f52b540 100644
--- a/runtime/Makefile
+++ b/runtime/Makefile
@@ -5,14 +5,19 @@
 # Licensed under the Apache License v2.0 with Runtime Library Exception.
 # See LICENSE file in the project root for full license terms.
 #
-# Each RTL unit is compiled directly via Blaise's unit-as-top-level mode: a
-# single `blaise --source X.pas --output X.o` invocation produces the object.
-# The RTL is now entirely pure Pascal (the four hand-written *_x86_64.s files
-# were migrated to inline-asm `.pas` units), so the whole archive builds through
-# Blaise's own internal assembler — no external assembler, no gcc, no .s files.
+# Builds blaise_rtl.a from the RTL units.  The RTL sources now live in the
+# COMPILER's own source tree (compiler/src/main/pascal/runtime.*.pas — the
+# dotted-flat unit names runtime.atomic, runtime.str, …) as part of the
+# RTL-unification work; this Makefile is the transitional archive producer that
+# keeps cold-bootstrap working from an existing release until the compiler
+# itself produces the RTL object cache (see docs/rtl-unification-plan.adoc).
+#
+# Each RTL unit is compiled via Blaise's unit-as-top-level mode, with
+# --assembler internal so the whole archive builds through Blaise's own
+# in-process assembler — no external assembler, no gcc, no .s files.
 SHELL   = /bin/bash
 
-PAS_SRC_DIR = src/main/pascal
+PAS_SRC_DIR = ../compiler/src/main/pascal
 OBJ_DIR     = target
 LIB         = $(OBJ_DIR)/blaise_rtl.a
 
@@ -20,37 +25,26 @@ LIB         = $(OBJ_DIR)/blaise_rtl.a
 # driver finds it automatically next to itself.
 COMPILER_BIN = ../compiler/target
 BLAISE       = $(COMPILER_BIN)/blaise
-# This Makefile IS a hand-managed separate-compilation system: it compiles each
-# RTL unit to its own object and archives an explicit object list.  The
-# compiler's own incremental mode (now the default) would, on top of that, write
-# per-dependency side-effect .o files next to each output and skip inlining a
-# used unit's bodies — but those side-effect objects are not in the archive's
-# object list, so a cross-unit symbol (e.g. typeinfo_TRtlPlatform, referenced by
-# the derived TRtlPlatformPosix in another unit) ends up undefined at link.
-# Force whole-program compilation per unit so every unit object is self-contained.
-#
-# --assembler internal: assemble each unit to its .o with Blaise's own in-process
-# assembler instead of `cc -c`, so building the RTL needs no external assembler.
+# Whole-program per unit (--no-incremental) so every unit object is
+# self-contained (no undefined cross-unit typeinfo symbols at archive link).
 BLAISE_FLAGS = --no-incremental --assembler internal
 
-# Every RTL unit is now pure Pascal (the four hand-written *_x86_64.s files —
-# start, setjmp, atomic, utf8 — were migrated to inline-asm `.pas` units).  The
-# RTL therefore builds entirely through Blaise's own pipeline: no $(CC), no
-# external assembler, no .s files.
-PAS_OBJS = $(OBJ_DIR)/blaise_start.o \
-           $(OBJ_DIR)/blaise_atomic.o \
-           $(OBJ_DIR)/blaise_setjmp.o \
-           $(OBJ_DIR)/blaise_utf8.o \
-           $(OBJ_DIR)/blaise_mem.o \
-           $(OBJ_DIR)/blaise_str.o \
-           $(OBJ_DIR)/blaise_set.o \
-           $(OBJ_DIR)/blaise_arc.o \
-           $(OBJ_DIR)/blaise_weak.o \
-           $(OBJ_DIR)/blaise_float.o \
-           $(OBJ_DIR)/blaise_thread.o \
-           $(OBJ_DIR)/blaise_exc.o \
-           $(OBJ_DIR)/rtl_platform_layout_linux.o \
-           $(OBJ_DIR)/rtl_platform_posix.o
+# RTL unit objects.  Object basenames mirror the source unit names (dots and
+# all); the archive's contents are unchanged in shape from before the rename.
+PAS_OBJS = $(OBJ_DIR)/runtime.start.o \
+           $(OBJ_DIR)/runtime.atomic.o \
+           $(OBJ_DIR)/runtime.setjmp.o \
+           $(OBJ_DIR)/runtime.utf8.o \
+           $(OBJ_DIR)/runtime.mem.o \
+           $(OBJ_DIR)/runtime.str.o \
+           $(OBJ_DIR)/runtime.set.o \
+           $(OBJ_DIR)/runtime.arc.o \
+           $(OBJ_DIR)/runtime.weak.o \
+           $(OBJ_DIR)/runtime.float.o \
+           $(OBJ_DIR)/runtime.thread.o \
+           $(OBJ_DIR)/runtime.exc.o \
+           $(OBJ_DIR)/rtl.platform.layout.linux.o \
+           $(OBJ_DIR)/rtl.platform.posix.o
 
 OBJS = $(PAS_OBJS)
 
@@ -61,63 +55,10 @@ all: $(LIB)
 $(LIB): $(OBJS)
 	ar rcs $@ $^
 
-# --- Pascal unit rules (unit-as-top-level) ---
-$(OBJ_DIR)/blaise_utf8.o: $(PAS_SRC_DIR)/blaise_utf8.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_start.o: $(PAS_SRC_DIR)/blaise_start.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_atomic.o: $(PAS_SRC_DIR)/blaise_atomic.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_setjmp.o: $(PAS_SRC_DIR)/blaise_setjmp.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_mem.o: $(PAS_SRC_DIR)/blaise_mem.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_str.o: $(PAS_SRC_DIR)/blaise_str.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_set.o: $(PAS_SRC_DIR)/blaise_set.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_arc.o: $(PAS_SRC_DIR)/blaise_arc.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_weak.o: $(PAS_SRC_DIR)/blaise_weak.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_float.o: $(PAS_SRC_DIR)/blaise_float.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_thread.o: $(PAS_SRC_DIR)/blaise_thread.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/blaise_exc.o: $(PAS_SRC_DIR)/blaise_exc.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/rtl_platform_layout_linux.o: $(PAS_SRC_DIR)/rtl.platform.layout.linux.pas \
-                                 $(PAS_SRC_DIR)/rtl.platform.pas
-	@mkdir -p $(OBJ_DIR)
-	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
-
-$(OBJ_DIR)/rtl_platform_posix.o: $(PAS_SRC_DIR)/rtl.platform.posix.pas \
-                                 $(PAS_SRC_DIR)/rtl.platform.layout.linux.pas \
-                                 $(PAS_SRC_DIR)/rtl.platform.pas
+# --- Pascal unit rule (unit-as-top-level) ---
+# One pattern rule now suffices: every unit compiles the same way, and the
+# object basename equals the unit/source basename.
+$(OBJ_DIR)/%.o: $(PAS_SRC_DIR)/%.pas
 	@mkdir -p $(OBJ_DIR)
 	$(BLAISE) $(BLAISE_FLAGS) --source $< --unit-path $(PAS_SRC_DIR) --output $@
 
diff --git a/runtime/src/test/pascal/bench_blaise_mem_custom.pas b/runtime/src/test/pascal/bench_blaise_mem_custom.pas
index d87741d..76dad05 100644
--- a/runtime/src/test/pascal/bench_blaise_mem_custom.pas
+++ b/runtime/src/test/pascal/bench_blaise_mem_custom.pas
@@ -10,7 +10,7 @@
 
 program bench_blaise_mem_custom;
 
-uses blaise_mem;
+uses runtime.mem;
 
 function _TimeNow: Int64; external name '_TimeNow';
 
diff --git a/runtime/src/test/pascal/test_blaise_mem.pas b/runtime/src/test/pascal/test_blaise_mem.pas
index d75dbe9..071e4fc 100644
--- a/runtime/src/test/pascal/test_blaise_mem.pas
+++ b/runtime/src/test/pascal/test_blaise_mem.pas
@@ -25,7 +25,7 @@
 program test_blaise_mem;
 
 uses
-  punit, blaise_mem;
+  punit, runtime.mem;
 
 { ------------------------------------------------------------------ }
 { Test: basic GetMem returns non-nil                                   }
diff --git a/runtime/src/test/pascal/test_blaise_str.pas b/runtime/src/test/pascal/test_blaise_str.pas
index 6c977d9..77924be 100644
--- a/runtime/src/test/pascal/test_blaise_str.pas
+++ b/runtime/src/test/pascal/test_blaise_str.pas
@@ -14,7 +14,7 @@
 program test_blaise_str;
 
 uses
-  blaise_str;
+  runtime.str;
 
 procedure _libc_puts(S: PChar); external name 'puts';
 
diff --git a/stdlib/src/main/pascal/classes.pas b/stdlib/src/main/pascal/classes.pas
index 3798d62..c2b3d6f 100644
--- a/stdlib/src/main/pascal/classes.pas
+++ b/stdlib/src/main/pascal/classes.pas
@@ -33,7 +33,7 @@ unit Classes;
 interface
 
 uses
-  blaise_arc, blaise_thread, StrUtils;
+  runtime.arc, runtime.thread, StrUtils;
 
 type
   TDuplicates = (dupAccept, dupIgnore, dupError);
diff --git a/stdlib/src/main/pascal/contnrs.pas b/stdlib/src/main/pascal/contnrs.pas
index aff4e08..0dc6936 100644
--- a/stdlib/src/main/pascal/contnrs.pas
+++ b/stdlib/src/main/pascal/contnrs.pas
@@ -16,7 +16,7 @@ unit Contnrs;
 interface
 
 uses
-  blaise_arc;  { for _ClassRelease }
+  runtime.arc;  { for _ClassRelease }
 
 type
   { ------------------------------------------------------------------ }