From 1ed1e16ab83f55d85c90ae43a05cbe08a00c20e0 Mon Sep 17 00:00:00 2001 From: Petr Hosek Date: Wed, 19 Aug 2020 14:33:52 -0700 Subject: [PATCH] [CMake] Fix an issue where get_system_libname creates an empty regex capture on windows Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=1119478 Patch By: haampie Differential Revision: https://reviews.llvm.org/D86245 --- llvm/lib/Support/CMakeLists.txt | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt index 42ee6d6..e6ff814 100644 --- a/llvm/lib/Support/CMakeLists.txt +++ b/llvm/lib/Support/CMakeLists.txt @@ -4,10 +4,14 @@ endif() function(get_system_libname libpath libname) get_filename_component(libpath ${libpath} NAME) - string(REPLACE ";" "|" PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}") - string(REPLACE ";" "|" SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES}") - STRING(REGEX REPLACE "^(${PREFIXES})" "" libpath ${libpath}) - STRING(REGEX REPLACE "(${SUFFIXES})$" "" libpath ${libpath}) + if( CMAKE_FIND_LIBRARY_PREFIXES ) + string(REPLACE ";" "|" PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}") + string(REGEX REPLACE "^(${PREFIXES})" "" libpath ${libpath}) + endif() + if( CMAKE_FIND_LIBRARY_SUFFIXES ) + string(REPLACE ";" "|" SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES}") + string(REGEX REPLACE "(${SUFFIXES})$" "" libpath ${libpath}) + endif() set(${libname} "${libpath}" PARENT_SCOPE) endfunction() -- 2.7.4