CMake

Keybinding Markup

---
title: CMake
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# Custom module path

*   The current project has custom [CMake][1] modules under cmake_modules/

Append the path in the top-level CMakeLists.txt:

list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake_modules")

# Out-of-Tree Sub-Projects

*   myLib is out-of-tree library source with its own CMakeLists.txt 
*   we want to build and link against the out-of-tree library

Instruct [CMake][1] to build the external library beneath the current binary dir explicitly:

add_subdirectory (${OUT_OF_TREE_DIR}/myLib ${CMAKE_CURRENT_BINARY_DIR}/myLib)

# MSVC static runtime definitions

*   MSVC projects require linking against specific versions of runtime libraries

Override CMAKE\_C\_FLAGS_*:

set(CMAKE_C_FLAGS_DEBUG "/MTd")
    set(CMAKE_C_FLAGS_RELEASE "/MT")

# Arch-specific Files

*   Architecture-specific C implementation files in src/$ARCH/*.c

Define TARGET\_BUILD\_PLATFORM=[linux|win32|...]. Include glob:

file(GLOB PLATFORM_CSRCS ${TARGET_BUILD_PLATFORM}/*.c)

# Group files in MSVC projects

source_group(Groupname FILES ${PLATFORM_CSRCS})

# Custom Cross-compiler Toolchain

*   Seems to require overriding tool invocation commands within the Toolchain file 
*   For compilers that don't include their system include files automatically, a platform .cmake file is useful 
    *   Seems this has to live in the [CMake][1] install tree (is there a better way?)

[1]: CMake

---
title: CMake
---
 
 
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