commit e3c64a374b44dfbec251bc5375b2ffaa01f32572
author Dan Ginsburg <dginsburg@upsamplesoftware.com> Mon Feb 04 12:39:39 2019 -0500
committer David Neto <dneto@google.com> Mon Feb 04 09:39:39 2019 -0800
tree 9c2f04e9c85ac6240a4e612025fe0547ec8e016d
parent 37861ac106027220fa327bd088d1635c352fb5f0

Do not build spirv-reduce on iOS/tvOS/watchOS - it requires std::system which is not available on those platforms (#2355)

tools/CMakeLists.txt

diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 9fb3a91..d42d4cc 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -42,7 +42,9 @@
   add_spvtools_tool(TARGET spirv-dis SRCS dis/dis.cpp LIBS ${SPIRV_TOOLS})
   add_spvtools_tool(TARGET spirv-val SRCS val/val.cpp util/cli_consumer.cpp LIBS ${SPIRV_TOOLS})
   add_spvtools_tool(TARGET spirv-opt SRCS opt/opt.cpp util/cli_consumer.cpp LIBS SPIRV-Tools-opt ${SPIRV_TOOLS})
-  add_spvtools_tool(TARGET spirv-reduce SRCS reduce/reduce.cpp util/cli_consumer.cpp LIBS SPIRV-Tools-reduce ${SPIRV_TOOLS})
+  if (NOT DEFINED IOS_PLATFORM) # iOS does not allow std::system calls which spirv-reduce requires
+    add_spvtools_tool(TARGET spirv-reduce SRCS reduce/reduce.cpp util/cli_consumer.cpp LIBS SPIRV-Tools-reduce ${SPIRV_TOOLS})
+  endif()
   add_spvtools_tool(TARGET spirv-link SRCS link/linker.cpp LIBS SPIRV-Tools-link ${SPIRV_TOOLS})
   add_spvtools_tool(TARGET spirv-stats
 	            SRCS stats/stats.cpp
@@ -62,7 +64,10 @@
                                                  ${SPIRV_HEADER_INCLUDE_DIR})
 
   set(SPIRV_INSTALL_TARGETS spirv-as spirv-dis spirv-val spirv-opt spirv-stats
-                            spirv-cfg spirv-link spirv-reduce)
+                            spirv-cfg spirv-link)
+  if(NOT DEFINED IOS_PLATFORM)
+    set(SPIRV_INSTALL_TARGETS ${SPIRV_INSTALL_TARGETS} spirv-reduce)
+  endif()
 
   if(SPIRV_BUILD_COMPRESSION)
     add_spvtools_tool(TARGET spirv-markv