Remove git update step from deps where patch is applied.

deps/deps-unix-common.cmake

@@ -61,42 +61,14 @@ ExternalProject_Add(dep_qhull
         -DBUILD_SHARED_LIBS=OFF
         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
         ${DEP_CMAKE_OPTS}
-    PATCH_COMMAND ${GIT_EXECUTABLE} apply --ignore-space-change --ignore-whitespace ${CMAKE_CURRENT_SOURCE_DIR}/qhull-mods.patch
+    UPDATE_COMMAND ""
+    PATCH_COMMAND ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_SOURCE_DIR}/qhull-mods.patch
 )
 
-ExternalProject_Add(dep_libigl
-    EXCLUDE_FROM_ALL 1
-    URL "https://github.com/libigl/libigl/archive/v2.0.0.tar.gz"
-    URL_HASH SHA256=42518e6b106c7209c73435fd260ed5d34edeb254852495b4c95dce2d95401328
-    CMAKE_ARGS
-        -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
-        -DLIBIGL_BUILD_PYTHON=OFF
-        -DLIBIGL_BUILD_TESTS=OFF
-        -DLIBIGL_BUILD_TUTORIALS=OFF
-        -DLIBIGL_USE_STATIC_LIBRARY=OFF #${DEP_BUILD_IGL_STATIC}
-        -DLIBIGL_WITHOUT_COPYLEFT=OFF
-        -DLIBIGL_WITH_CGAL=OFF
-        -DLIBIGL_WITH_COMISO=OFF
-        -DLIBIGL_WITH_CORK=OFF
-        -DLIBIGL_WITH_EMBREE=OFF
-        -DLIBIGL_WITH_MATLAB=OFF
-        -DLIBIGL_WITH_MOSEK=OFF
-        -DLIBIGL_WITH_OPENGL=OFF
-        -DLIBIGL_WITH_OPENGL_GLFW=OFF
-        -DLIBIGL_WITH_OPENGL_GLFW_IMGUI=OFF
-        -DLIBIGL_WITH_PNG=OFF
-        -DLIBIGL_WITH_PYTHON=OFF
-        -DLIBIGL_WITH_TETGEN=OFF
-        -DLIBIGL_WITH_TRIANGLE=OFF
-        -DLIBIGL_WITH_XML=OFF
-    PATCH_COMMAND ${GIT_EXECUTABLE} apply --ignore-space-change --ignore-whitespace ${CMAKE_CURRENT_SOURCE_DIR}/igl-mods.patch
-)
-
-
 ExternalProject_Add(dep_blosc
     EXCLUDE_FROM_ALL 1
     GIT_REPOSITORY https://github.com/Blosc/c-blosc.git
-    GIT_TAG v1.17.0
+    GIT_TAG e63775855294b50820ef44d1b157f4de1cc38d3e #v1.17.0
     DEPENDS
     CMAKE_ARGS
         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
@@ -108,13 +80,14 @@ ExternalProject_Add(dep_blosc
         -DBUILD_TESTS=OFF 
         -DBUILD_BENCHMARKS=OFF 
         -DPREFER_EXTERNAL_ZLIB=ON
-    PATCH_COMMAND ${GIT_EXECUTABLE} apply --ignore-space-change --ignore-whitespace ${CMAKE_CURRENT_SOURCE_DIR}/blosc-mods.patch
+    UPDATE_COMMAND ""
+    PATCH_COMMAND ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_SOURCE_DIR}/blosc-mods.patch
 )
 
 ExternalProject_Add(dep_openexr
     EXCLUDE_FROM_ALL 1
     GIT_REPOSITORY https://github.com/openexr/openexr.git
-    GIT_TAG v2.4.0 
+    GIT_TAG eae0e337c9f5117e78114fd05f7a415819df413a #v2.4.0 
     CMAKE_ARGS
         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
         -DBUILD_SHARED_LIBS=OFF
@@ -123,12 +96,13 @@ ExternalProject_Add(dep_openexr
         -DPYILMBASE_ENABLE:BOOL=OFF 
         -DOPENEXR_VIEWERS_ENABLE:BOOL=OFF
         -DOPENEXR_BUILD_UTILS:BOOL=OFF
+    UPDATE_COMMAND ""
 )
 
 ExternalProject_Add(dep_openvdb
     EXCLUDE_FROM_ALL 1
     GIT_REPOSITORY https://github.com/AcademySoftwareFoundation/openvdb.git
-    GIT_TAG v6.2.1
+    GIT_TAG aebaf8d95be5e57fd33949281ec357db4a576c2e #v6.2.1
     DEPENDS dep_blosc dep_openexr dep_tbb
     CMAKE_ARGS
         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
@@ -142,5 +116,6 @@ ExternalProject_Add(dep_openvdb
         -DOPENVDB_CORE_STATIC=ON 
         -DTBB_STATIC=ON
         -DOPENVDB_BUILD_VDB_PRINT=ON
-    PATCH_COMMAND ${GIT_EXECUTABLE} apply ${CMAKE_CURRENT_SOURCE_DIR}/openvdb-mods.patch
+    UPDATE_COMMAND ""
+    PATCH_COMMAND ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_SOURCE_DIR}/openvdb-mods.patch
 )