VDT Configuration Errors (Mac OS 15.4)

[Mark_C_Hodgkinson]

Hello,

I am trying to build the new tag v6-34-08 on Mac OS 15.4 with the latest Xcode and the compile step fails at the VDT configuration:

[196/10604] Performing configure step for ‘VDT’

FAILED: VDT-prefix/src/VDT-stamp/VDT-configure /Users/markhodgkinson/root_src_April2025/buildDir/VDT-prefix/src/VDT-stamp/VDT-configure

cd /Users/markhodgkinson/root_src_April2025/buildDir/VDT-prefix/src/VDT-build && /opt/homebrew/bin/cmake -P /Users/markhodgkinson/root_src_April2025/buildDir/VDT-prefix/src/VDT-stamp/VDT-configure-Release.cmake && /opt/homebrew/bin/cmake -E touch /Users/markhodgkinson/root_src_April2025/buildDir/VDT-prefix/src/VDT-stamp/VDT-configure

Checking the VDT error file I can see:

CMake Error at CMakeLists.txt:2 (cmake_minimum_required):
Compatibility with CMake < 3.5 has been removed from CMake.

Update the VERSION argument value. Or, use the … syntax
to tell CMake that the project requires at least but has been updated
to work with policies introduced by or earlier.

Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.

I tried the latter, but it did not help - such that my commands to build (with a new buildDir) are:

sudo cmake -DCMAKE_INSTALL_PREFIX=/opt/hep/root/v6-34-08 /Users/markhodgkinson/root_src_April2025 -GNinja
-DCMAKE_BUILD_TYPE=Release
-DCMAKE_CXX_STANDARD=17
-Dfail-on-missing=ON
-Dgdml=ON
-Dx11=ON
-Dpyroot=ON
-Ddataframe=ON
-Dmysql=OFF
-Doracle=OFF
-Dpgsql=OFF
-Dsqlite=OFF
-Dpythia6=OFF
-Dpythia8=OFF
-Dfftw3=OFF
-Dbuiltin_cfitsio=ON
-Dbuiltin_xxhash=ON
-Dbuiltin_afterimage=OFF
-Dbuiltin_openssl=OFF
-Dbuiltin_ftgl=ON
-Dbuiltin_glew=ON
-Dbuiltin_gsl=ON
-Dbuiltin_gl2ps=ON
-Dbuiltin_xrootd=ON
-Dgfal=OFF
-Ddavix=ON
-Dbuiltin_vdt=ON
-Dxrootd=OFF
-Dtmva=ON
-DCMAKE_POLICY_VERSION_MINIMUM=3.5

which works without errors and then:

sudo cmake --build . --target install

which produce the VDT config errors.

I was able to build with the v6 34 patches branch yesterday without this issue using the same commands.

Cheers,

Mark

[Mark_C_Hodgkinson]

I was able to solve this issue with the following change:

Blockquote
git diff
diff --git a/cmake/modules/SearchInstalledSoftware.cmake b/cmake/modules/SearchInstalledSoftware.cmake
index 00360ecbae..a568cc40ca 100644
— a/cmake/modules/SearchInstalledSoftware.cmake
+++ b/cmake/modules/SearchInstalledSoftware.cmake
@@ -1549,6 +1549,7 @@ if(vdt OR builtin_vdt)
-DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
-DCMAKE_CXX_FLAGS=${ROOT_EXTERNAL_CXX_FLAGS}
-DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
+ -DCMAKE_POLICY_VERSION_MINIMUM=3.5
LOG_DOWNLOAD 1 LOG_CONFIGURE 1 LOG_BUILD 1 LOG_INSTALL 1
BUILD_BYPRODUCTS ${VDT_LIBRARIES}
TIMEOUT 600

[couet]

Are you using cmake 4.0.0 ?

[Mark_C_Hodgkinson]

Yes I have cmake 4.0.0.

Previously I had quite an old version which could not be used with another software package…so I ran brew upgrade (now I am unsure whether I upgraded this after or before I built from the v6 34 patch branch yesterday).

Would downgrading cmake solve this issue for ROOT?

Despite solving the VDT issue, I then hit the same issue with CFITSIO which I could not find a way to solve (because I can’t figure out when in ROOT the cmake options for this are set).

Cheers,

Mark

[couet]

We are on it. There is an issue with cmake 4.0.0

Problem with cmake 4.0.0