From e93245ec64bec6e5f63388e4b4714c7a9d3cbf51 Mon Sep 17 00:00:00 2001 From: Brad King Date: Thu, 1 Jul 2021 12:56:17 -0400 Subject: DetermineCompiler: Restore identification of MSVC with no INCLUDE or LIB Update the change from commit c6aaaf066a (DetermineCompiler: Restore identification of MSVC with no INCLUDE dirs, 2021-06-29, v3.21.0-rc2~6^2) to also work with no `LIB` dirs. Add the `-c` flag to compile an object file without linking. --- Modules/CMakeDetermineCCompiler.cmake | 3 ++- Modules/CMakeDetermineCXXCompiler.cmake | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake index ca497f1..0f80f9c 100644 --- a/Modules/CMakeDetermineCCompiler.cmake +++ b/Modules/CMakeDetermineCCompiler.cmake @@ -88,7 +88,8 @@ else() # MSVC needs at least one include directory for __has_include to function, # but custom toolchains may run MSVC with no INCLUDE env var and no -I flags. - "-I__does_not_exist__" + # Also avoid linking so this works with no LIB env var. + "-c -I__does_not_exist__" ) endif() if(CMAKE_C_COMPILER_TARGET) diff --git a/Modules/CMakeDetermineCXXCompiler.cmake b/Modules/CMakeDetermineCXXCompiler.cmake index e297f90..556518f 100644 --- a/Modules/CMakeDetermineCXXCompiler.cmake +++ b/Modules/CMakeDetermineCXXCompiler.cmake @@ -83,7 +83,8 @@ else() # MSVC needs at least one include directory for __has_include to function, # but custom toolchains may run MSVC with no INCLUDE env var and no -I flags. - "-I__does_not_exist__" + # Also avoid linking so this works with no LIB env var. + "-c -I__does_not_exist__" ) endif() -- cgit v0.12