# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1522310886 -7200
# Node ID 7c8a246e8652bbf5662972c03e3f283976f31352
# Parent  38d666a408603692abdda0ee717e0c21c467c556
fix WebAssembly build

diff -r 38d666a40860 -r 7c8a246e8652 Resources/CMake/BoostConfiguration.cmake
--- a/Resources/CMake/BoostConfiguration.cmake	Thu Mar 29 08:55:32 2018 +0200
+++ b/Resources/CMake/BoostConfiguration.cmake	Thu Mar 29 10:08:06 2018 +0200
@@ -145,6 +145,7 @@
       )
 
   elseif (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+    # No support for threads in WebAssembly
 
   else()
     message(FATAL_ERROR "Support your platform here")
diff -r 38d666a40860 -r 7c8a246e8652 Resources/CMake/DcmtkConfiguration.cmake
--- a/Resources/CMake/DcmtkConfiguration.cmake	Thu Mar 29 08:55:32 2018 +0200
+++ b/Resources/CMake/DcmtkConfiguration.cmake	Thu Mar 29 10:08:06 2018 +0200
@@ -100,33 +100,16 @@
     message("The patches for DCMTK have already been applied")
   endif()
 
+
   IF (CMAKE_CROSSCOMPILING)
     if (CMAKE_COMPILER_IS_GNUCXX AND
         CMAKE_SYSTEM_NAME STREQUAL "Windows")  # MinGW
       SET(C_CHAR_UNSIGNED 1 CACHE INTERNAL "Whether char is unsigned.")
 
     elseif(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")  # WebAssembly or asm.js
-      # Check out "../WebAssembly/arith.h"
-      UNSET(SIZEOF_VOID_P   CACHE)
-      UNSET(SIZEOF_CHAR     CACHE)
-      UNSET(SIZEOF_DOUBLE   CACHE)
-      UNSET(SIZEOF_FLOAT    CACHE)
-      UNSET(SIZEOF_INT      CACHE)
-      UNSET(SIZEOF_LONG     CACHE)
-      UNSET(SIZEOF_SHORT    CACHE)
-      UNSET(SIZEOF_VOID_P   CACHE)
-      UNSET(C_CHAR_UNSIGNED CACHE)
 
-      SET(SIZEOF_VOID_P 4   CACHE INTERNAL "")
-      SET(SIZEOF_CHAR 1     CACHE INTERNAL "")
-      SET(SIZEOF_DOUBLE 8   CACHE INTERNAL "")
-      SET(SIZEOF_FLOAT 4    CACHE INTERNAL "")
-      SET(SIZEOF_INT 4      CACHE INTERNAL "")
-      SET(SIZEOF_LONG 4     CACHE INTERNAL "")
-      SET(SIZEOF_SHORT 2    CACHE INTERNAL "")
-      SET(SIZEOF_VOID_P 4   CACHE INTERNAL "")
-      SET(C_CHAR_UNSIGNED 0 CACHE INTERNAL "")
-
+      # Check out "../WebAssembly/ArithmeticTests/" to regenerate the
+      # "arith.h" file
       configure_file(
         ${ORTHANC_ROOT}/Resources/WebAssembly/arith.h
         ${DCMTK_SOURCES_DIR}/config/include/dcmtk/config/arith.h
@@ -158,6 +141,35 @@
   include(${DCMTK_SOURCES_DIR}/CMake/CheckFunctionWithHeaderExists.cmake)
   include(${DCMTK_SOURCES_DIR}/CMake/GenerateDCMTKConfigure.cmake)
 
+
+  if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")  # WebAssembly or
+    # asm.js The macros below are not properly discovered by DCMTK
+    # when using WebAssembly. Check out "../WebAssembly/arith.h" for
+    # how we produced these values. This step MUST be after
+    # "GenerateDCMTKConfigure" and before the generation of
+    # "osconfig.h".
+    UNSET(SIZEOF_VOID_P   CACHE)
+    UNSET(SIZEOF_CHAR     CACHE)
+    UNSET(SIZEOF_DOUBLE   CACHE)
+    UNSET(SIZEOF_FLOAT    CACHE)
+    UNSET(SIZEOF_INT      CACHE)
+    UNSET(SIZEOF_LONG     CACHE)
+    UNSET(SIZEOF_SHORT    CACHE)
+    UNSET(SIZEOF_VOID_P   CACHE)
+    UNSET(C_CHAR_UNSIGNED CACHE)
+
+    SET(SIZEOF_VOID_P 4   CACHE INTERNAL "")
+    SET(SIZEOF_CHAR 1     CACHE INTERNAL "")
+    SET(SIZEOF_DOUBLE 8   CACHE INTERNAL "")
+    SET(SIZEOF_FLOAT 4    CACHE INTERNAL "")
+    SET(SIZEOF_INT 4      CACHE INTERNAL "")
+    SET(SIZEOF_LONG 4     CACHE INTERNAL "")
+    SET(SIZEOF_SHORT 2    CACHE INTERNAL "")
+    SET(SIZEOF_VOID_P 4   CACHE INTERNAL "")
+    SET(C_CHAR_UNSIGNED 0 CACHE INTERNAL "")
+  endif()
+
+
   set(DCMTK_PACKAGE_VERSION_SUFFIX "")
   set(DCMTK_PACKAGE_VERSION_NUMBER ${DCMTK_VERSION_NUMBER})
 
@@ -407,6 +419,10 @@
       /usr/share/libdcmtk14
       /usr/share/libdcmtk15
       /usr/share/libdcmtk16
+      /usr/share/libdcmtk17
+      /usr/share/libdcmtk18
+      /usr/share/libdcmtk19
+      /usr/share/libdcmtk20
       /usr/local/share/dcmtk
       )