make Libint2::cxx consumable even if it used system Boost

evaleev · Sep 17, 2023 · 46b2a5f · 46b2a5f
1 parent fff8544
commit 46b2a5f
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/export/cmake/libint2-config.cmake.in b/export/cmake/libint2-config.cmake.in
@@ -22,6 +22,7 @@ set(LIBINT2_EXT_VERSION "@LIBINT_EXT_VERSION@")
 
 set(LIBINT2_LIBRARIES Libint2::int2)
 set(LIBINT2_INCLUDE_DIRS "@PACKAGE_LIBINT2_INSTALL_INCLUDEDIR@")
+set(LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS @LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS@)
 
 # Import library targets
 if(NOT TARGET Libint2::libint2)
@@ -31,6 +32,12 @@ if(NOT TARGET Libint2::libint2)
   endif()
 endif()
 
+# if relied on system Boost for preprocessor variadics, make sure it's available
+if (LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS AND NOT TARGET Boost::boost)
+  include(CMakeFindDependencyMacro)
+  find_dependency(Boost 1.29)
+endif()
+
 # Need Threads::Threads
 if (NOT TARGET Threads::Threads)
   find_package(Threads QUIET REQUIRED)