Make static build controlled by config option

Author: ausbin

CMakeLists.txt

@@ -38,6 +38,7 @@ option(QIREE_BUILD_TESTS "Build QIR-EE unit tests" ON)
 option(QIREE_BUILD_EXAMPLES "Build QIR-EE examples" OFF)
 option(QIREE_USE_QSIM "Download and build Google qsim backend" OFF)
 option(QIREE_USE_XACC "Build XACC interface" ON)
+option(QIREE_SHARED_LIBS "Build shared libraries, not static libraries" ON)
 
 qiree_set_default(BUILD_TESTING ${QIREE_BUILD_TESTS})
 
@@ -77,10 +78,10 @@ qiree_set_default(CMAKE_CXX_EXTENSIONS OFF)
 
 ### Linking flags ###
 # Default to building shared libraries (*not* a cache variable)
-qiree_set_default(BUILD_SHARED_LIBS ON)
+qiree_set_default(BUILD_SHARED_LIBS ${QIREE_SHARED_LIBS})
 # Inform installed binaries of external library rpaths
 qiree_set_default(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON)
-if(BUILD_SHARED_LIBS)
+if(QIREE_SHARED_LIBS)
   # Inform installed binaries of internal library rpaths
   qiree_set_default(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_FULL_LIBDIR}")
   # Do not relink libs/binaries when dependent shared libs change

CMakePresets.json

@@ -13,10 +13,6 @@
             "binaryDir": "${sourceDir}/build-${presetName}",
             "generator": "Ninja",
             "cacheVariables": {
-                "BUILD_SHARED_LIBS": {
-                    "type": "BOOL",
-                    "value": "ON"
-                },
                 "CMAKE_BUILD_TYPE": {
                     "type": "STRING",
                     "value": "Debug"

src/cqiree/CMakeLists.txt

@@ -12,7 +12,15 @@ if(QIREE_USE_QSIM)
   list(APPEND _CQIREE_LIBS QIREE::qirqsim)
 endif()
 
-qiree_add_library(cqiree
+if(QIREE_SHARED_LIBS)
+    # When building with shared libs, this should be a shared library that can
+    # be dlopen()'d.
+    set(_LIB_TYPE MODULE)
+else()
+    set(_LIB_TYPE)
+endif()
+
+qiree_add_library(cqiree ${_LIB_TYPE}
   CQiree.cc
   QireeManager.cc
 )

src/qiree_config.h.in

@@ -12,5 +12,6 @@
 #cmakedefine01 QIREE_DEBUG
 #cmakedefine01 QIREE_USE_QSIM
 #cmakedefine01 QIREE_USE_XACC
+#cmakedefine01 QIREE_SHARED_LIBS
 
 #endif /* qiree_config_h */

test/CMakeLists.txt

@@ -69,7 +69,13 @@ qiree_add_test(qiree ResultDistribution)
 #---------------------------------------------------------------------------##
 
 qiree_add_test(cqiree CQiree)
-add_dependencies(cqiree_CQireeTest cqiree)
+if(QIREE_SHARED_LIBS)
+    # Tester uses dlopen()
+    add_dependencies(cqiree_CQireeTest cqiree)
+else()
+    # Statically link tester with cqiree
+    target_link_libraries(cqiree_CQireeTest cqiree)
+endif()
 
 #---------------------------------------------------------------------------##
 # QIRXACC TESTS

test/cqiree/CQiree.test.cc

@@ -15,6 +15,7 @@
 #include <vector>
 #include <dlfcn.h>
 
+#include "qiree_config.h"
 #include "qiree_targets.h"
 
 #include "qiree/Assert.hh"
@@ -44,15 +45,21 @@ class CQireeTest : public ::qiree::test::Test
   protected:
     void SetUp() override
     {
+#if QIREE_SHARED_LIBS
         lib_handle_ = dlopen(cqiree_library_path, RTLD_LAZY);
         ASSERT_NE(lib_handle_, nullptr)
             << "Failed to load libcqiree: " << dlerror();
-
-#define LOAD_FUNCPTR(FUNC)                           \
-    FUNC##_fn_ = reinterpret_cast<qiree_##FUNC##_t>( \
-        dlsym(lib_handle_, "qiree_" #FUNC));         \
-    ASSERT_NE(FUNC##_fn_, nullptr)                   \
-        << "Failed to load " << #FUNC << ": " << dlerror();
+#endif
+
+#if QIREE_SHARED_LIBS
+#    define LOAD_FUNCPTR(FUNC)                           \
+        FUNC##_fn_ = reinterpret_cast<qiree_##FUNC##_t>( \
+            dlsym(lib_handle_, "qiree_" #FUNC));         \
+        ASSERT_NE(FUNC##_fn_, nullptr)                   \
+            << "Failed to load " << #FUNC << ": " << dlerror();
+#else
+#    define LOAD_FUNCPTR(FUNC) FUNC##_fn_ = qiree_##FUNC;
+#endif
         LOAD_FUNCPTR(create);
         LOAD_FUNCPTR(load_module_from_memory);
         LOAD_FUNCPTR(load_module_from_file);