release/20.x: fix: removes invalid token from LLVM_VERSION_SUFFIX in LIBC namespace (#126193)

[llvmbot]

Backport 51759ff

Requested by: @jhuber6

[llvmbot]

@nickdesaulniers What do you think about merging this PR to the release branch?

[llvmbot]

@llvm/pr-subscribers-libc

Author: None (llvmbot)

Changes

Backport 51759ff

Requested by: @jhuber6

---

Full diff: https://github.com/llvm/llvm-project/pull/126284.diff

1 Files Affected:

• (modified) libc/CMakeLists.txt (+2-1)

diff --git a/libc/CMakeLists.txt b/libc/CMakeLists.txt
index c061e2a05ebd8f5..1c4c0cd5aa22ba7 100644
--- a/libc/CMakeLists.txt
+++ b/libc/CMakeLists.txt
@@ -51,7 +51,8 @@ set(LIBC_KERNEL_HEADERS "/usr/include" CACHE STRING "Path to Linux kernel header
 # Defining a global namespace to enclose all libc functions.
 set(default_namespace "__llvm_libc")
 if(LLVM_VERSION_MAJOR)
-  set(default_namespace "__llvm_libc_${LLVM_VERSION_MAJOR}_${LLVM_VERSION_MINOR}_${LLVM_VERSION_PATCH}_${LLVM_VERSION_SUFFIX}")
+  string(REPLACE "-" "" NS_LLVM_VERSION_SUFFIX ${LLVM_VERSION_SUFFIX})
+  set(default_namespace "__llvm_libc_${LLVM_VERSION_MAJOR}_${LLVM_VERSION_MINOR}_${LLVM_VERSION_PATCH}_${NS_LLVM_VERSION_SUFFIX}")
 endif()
 set(LIBC_NAMESPACE ${default_namespace}
   CACHE STRING "The namespace to use to enclose internal implementations. Must start with '__llvm_libc'."

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