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diff -Naur external_ispc/CMakeLists.txt external_ispc_fixed/CMakeLists.txt
--- external_ispc/CMakeLists.txt 2020-04-23 17:29:06 -0600
+++ external_ispc_fixed/CMakeLists.txt 2020-05-05 09:01:09 -0600
@@ -389,7 +389,7 @@
# Link against Clang libraries
foreach(clangLib ${CLANG_LIBRARY_LIST})
- find_library(${clangLib}Path NAMES ${clangLib} HINTS ${LLVM_LIBRARY_DIRS})
+ find_library(${clangLib}Path NAMES ${clangLib} HINTS ${LLVM_LIBRARY_DIRS} ${CLANG_LIBRARY_DIR})
list(APPEND CLANG_LIBRARY_FULL_PATH_LIST ${${clangLib}Path})
endforeach()
target_link_libraries(${PROJECT_NAME} ${CLANG_LIBRARY_FULL_PATH_LIST})
diff -Naur orig/CMakeLists.txt external_ispc/CMakeLists.txt
--- orig/CMakeLists.txt 2020-05-05 09:19:11 -0600
+++ external_ispc/CMakeLists.txt 2020-05-05 09:26:44 -0600
@@ -333,7 +333,7 @@
# Include directories
target_include_directories(${PROJECT_NAME} PRIVATE
- ${LLVM_INCLUDE_DIRS}
+ ${LLVM_INCLUDE_DIRS} ${CLANG_INCLUDE_DIRS}
${GENX_DEPS_DIR}/include
${CMAKE_CURRENT_SOURCE_DIR}/src
${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
diff -Naur orig/cmake/GenerateBuiltins.cmake.txt external_ispc/cmake/GenerateBuiltins.cmake.txt
+++ orig/cmake/GenerateBuiltins.cmake 2020-05-25 13:32:40.830803821 +0200
+++ external_ispc/cmake/GenerateBuiltins.cmake 2020-05-25 13:32:40.830803821 +0200
@@ -97,6 +97,8 @@
if ("${bit}" STREQUAL "32" AND ${arch} STREQUAL "x86")
set(target_arch "i686")
+ # Blender: disable 32bit due to build issues on Linux and being unnecessary.
+ set(SKIP ON)
elseif ("${bit}" STREQUAL "64" AND ${arch} STREQUAL "x86")
set(target_arch "x86_64")
elseif ("${bit}" STREQUAL "32" AND ${arch} STREQUAL "arm")
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 46a8db8..f53beef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,8 +36,12 @@
cmake_minimum_required(VERSION 3.13)
if (UNIX)
- set(CMAKE_C_COMPILER "clang")
- set(CMAKE_CXX_COMPILER "clang++")
+ if (NOT CMAKE_C_COMPILER)
+ set(CMAKE_C_COMPILER "clang")
+ endif()
+ if (NOT CMAKE_CXX_COMPILER)
+ set(CMAKE_CXX_COMPILER "clang++")
+ endif()
endif()
set(PROJECT_NAME ispc)
@@ -412,6 +416,29 @@ else()
endif()
endif()
+# Link against libstdc++.a which must be provided to the linker after
+# LLVM and CLang libraries.
+# This is needed because some of LLVM/CLang dependencies are using
+# std::make_shared, which is defined in one of those:
+# - libclang-cpp.so
+# - libstdc++.a
+# Using the former one is tricky because then generated binary depends
+# on a library which is outside of the LD_LIBRARY_PATH.
+#
+# Hence, using C++ implementation from G++ which seems to work just fine.
+# In fact, from investigation seems that libclang-cpp.so itself is pulling
+# std::_Sp_make_shared_tag from G++'s libstdc++.a.
+if(UNIX AND NOT APPLE)
+ execute_process(
+ COMMAND g++ --print-file-name libstdc++.a
+ OUTPUT_VARIABLE GCC_LIBSTDCXX_A
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+ )
+ if(GCC_LIBSTDCXX_A AND EXISTS ${GCC_LIBSTDCXX_A})
+ target_link_libraries(${PROJECT_NAME} ${GCC_LIBSTDCXX_A})
+ endif()
+endif()
+
# Build target for utility checking host ISA
if (ISPC_INCLUDE_UTILS)
add_executable(check_isa "")
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