Build libbinaryen as a monolithic statically/shared library (#2463)

* Transform libraries created in subdirectories from statically linked
libraries to CMake object libraries.

* Link object libraries as `PRIVATE` to `libbinaryen`.

According to CMake documentation: "Libraries and targets following
PRIVATE are linked to, but are not made part of the link interface."
This is exactly what we want, as we only want the C API to be part of
the interface.

7 files changed, 7 insertions, 7 deletions

diff --git a/src/asmjs/CMakeLists.txt b/src/asmjs/CMakeLists.txt
index 0252ed911..e9fa3d12f 100644
--- a/src/asmjs/CMakeLists.txt
+++ b/src/asmjs/CMakeLists.txt
@@ -3,4 +3,4 @@ SET(asmjs_SOURCES
   asmangle.cpp
   shared-constants.cpp
 )
-ADD_LIBRARY(asmjs STATIC ${asmjs_SOURCES})
\ No newline at end of file
+ADD_LIBRARY(asmjs OBJECT ${asmjs_SOURCES})
diff --git a/src/cfg/CMakeLists.txt b/src/cfg/CMakeLists.txt
index f0825b454..feb4186af 100644
--- a/src/cfg/CMakeLists.txt
+++ b/src/cfg/CMakeLists.txt
@@ -1,4 +1,4 @@
 SET(cfg_SOURCES
   Relooper.cpp
 )
-ADD_LIBRARY(cfg STATIC ${cfg_SOURCES})
+ADD_LIBRARY(cfg OBJECT ${cfg_SOURCES})
diff --git a/src/emscripten-optimizer/CMakeLists.txt b/src/emscripten-optimizer/CMakeLists.txt
index 6c302b991..a2bb7d802 100644
--- a/src/emscripten-optimizer/CMakeLists.txt
+++ b/src/emscripten-optimizer/CMakeLists.txt
@@ -3,4 +3,4 @@ SET(emscripten-optimizer_SOURCES
   parser.cpp
   simple_ast.cpp
 )
-ADD_LIBRARY(emscripten-optimizer STATIC ${emscripten-optimizer_SOURCES})
+ADD_LIBRARY(emscripten-optimizer OBJECT ${emscripten-optimizer_SOURCES})
diff --git a/src/ir/CMakeLists.txt b/src/ir/CMakeLists.txt
index e89ece6a2..3f4a77337 100644
--- a/src/ir/CMakeLists.txt
+++ b/src/ir/CMakeLists.txt
@@ -4,4 +4,4 @@ SET(ir_SOURCES
   LocalGraph.cpp
   ReFinalize.cpp
 )
-ADD_LIBRARY(ir STATIC ${ir_SOURCES})
+ADD_LIBRARY(ir OBJECT ${ir_SOURCES})
diff --git a/src/passes/CMakeLists.txt b/src/passes/CMakeLists.txt
index d2b7e22bc..313c0f5a7 100644
--- a/src/passes/CMakeLists.txt
+++ b/src/passes/CMakeLists.txt
@@ -72,4 +72,4 @@ SET(passes_SOURCES
   Vacuum.cpp
   ${CMAKE_CURRENT_BINARY_DIR}/WasmIntrinsics.cpp
 )
-ADD_LIBRARY(passes STATIC ${passes_SOURCES})
+ADD_LIBRARY(passes OBJECT ${passes_SOURCES})
diff --git a/src/support/CMakeLists.txt b/src/support/CMakeLists.txt
index b3373d076..eaf608d58 100644
--- a/src/support/CMakeLists.txt
+++ b/src/support/CMakeLists.txt
@@ -8,5 +8,5 @@ SET(support_SOURCES
   safe_integer.cpp
   threads.cpp
 )
-ADD_LIBRARY(support STATIC ${support_SOURCES})
+ADD_LIBRARY(support OBJECT ${support_SOURCES})
 TARGET_LINK_LIBRARIES(support ${CMAKE_THREAD_LIBS_INIT})
diff --git a/src/wasm/CMakeLists.txt b/src/wasm/CMakeLists.txt
index f4441953a..984441c6c 100644
--- a/src/wasm/CMakeLists.txt
+++ b/src/wasm/CMakeLists.txt
@@ -10,4 +10,4 @@ SET(wasm_SOURCES
   wasm-type.cpp
   wasm-validator.cpp
 )
-ADD_LIBRARY(wasm STATIC ${wasm_SOURCES})
+ADD_LIBRARY(wasm OBJECT ${wasm_SOURCES})