Tolerate empty /proc/cpuinfo

debian/patches/0002-Tolerate-empty-proc-cpuinfo.patch

@@ -0,0 +1,25 @@
+From: =?utf-8?q?Timo_R=C3=B6hling?= <roehling@debian.org>
+Date: Sun, 28 May 2023 12:02:38 +0200
+Subject: Tolerate empty /proc/cpuinfo
+
+Forwarded: https://gitlab.kitware.com/utils/kwsys/-/merge_requests/284
+           https://gitlab.kitware.com/cmake/cmake/-/merge_requests/8504
+---
+ Source/kwsys/SystemInformation.cxx | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/Source/kwsys/SystemInformation.cxx b/Source/kwsys/SystemInformation.cxx
+index 20e2edb..7f8485e 100644
+--- a/Source/kwsys/SystemInformation.cxx
++++ b/Source/kwsys/SystemInformation.cxx
+@@ -3453,6 +3453,10 @@ bool SystemInformationImplementation::RetrieveInformationFromCpuInfoFile()
+     fileSize++;
+   }
+   fclose(fd);
++  if (fileSize < 2) {
++    std::cout << "No data in /proc/cpuinfo" << std::endl;
++    return false;
++  }
+   buffer.resize(fileSize - 2);
+   // Number of logical CPUs (combination of multiple processors, multi-core
+   // and SMT)

debian/patches/series

@@ -1 +1,2 @@
 0001-Prefer-default-Python-version.patch
+0002-Tolerate-empty-proc-cpuinfo.patch