CMake updates (#302)

* Add BUILD_SHARED_LIBS option to choose between shared and static lib

* Fix build break for Android aarch64

* Install built target

* Set the correct version number

* Don't add include dirs through CFlags. Include dirs are already set as target property

* Install all relevant headers, not just from include dir

* Update note about BUILD_SHARED_LIBS in README.md

* Fix mistake in README.md, option(BUILD_SHARED_LIBS ON) sets the lib to shared by default

CMakeLists.txt

@@ -1,11 +1,12 @@
 cmake_minimum_required(VERSION 3.25)
 
 project(openlibm
-        VERSION 0.8.0
+        VERSION 0.8.2
         LANGUAGES C ASM)
 
-add_library("${PROJECT_NAME}" SHARED)
+option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
 
+add_library("${PROJECT_NAME}")
 
 # Find the relevant folder depending on the architecture
 set(OPENLIBM_ARCH_FOLDER ${CMAKE_SYSTEM_PROCESSOR})
@@ -13,7 +14,7 @@ string(TOLOWER "${OPENLIBM_ARCH_FOLDER}" OPENLIBM_ARCH_FOLDER)
 
 if(${OPENLIBM_ARCH_FOLDER} STREQUAL "amd64" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL "x86_64")
     set(OPENLIBM_ARCH_FOLDER "amd64")
-elseif(${OPENLIBM_ARCH_FOLDER} MATCHES "arm64")
+elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "arm64" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL "aarch64")
     set(OPENLIBM_ARCH_FOLDER "aarch64")
 elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "x86")
     set(OPENLIBM_ARCH_FOLDER "i387")
@@ -51,13 +52,6 @@ if(OPENLIBM_SUPPRESS_WARNINGS)
     list(APPEND C_ASM_COMPILE_FLAGS "-w")
 endif()
 
-list(APPEND C_ASM_COMPILE_FLAGS
-        "-I${PROJECT_SRC}"
-        "-I${PROJECT_SRC}/include"
-        "-I${PROJECT_SRC}/${OPENLIBM_ARCH_FOLDER}"
-        "-I${PROJECT_SRC}/src"
-)
-
 # Add compile flags
 target_compile_options("${PROJECT_NAME}" PUBLIC ${C_ASM_COMPILE_FLAGS})
 
@@ -547,3 +541,7 @@ else()
 endif()
 
 target_include_directories("${PROJECT_NAME}" PUBLIC ${OPENLIBM_INCLUDE_DIRS})
+
+file(GLOB PUBLIC_HEADERS "*.h" "include/*.h" "${OPENLIBM_ARCH_FOLDER}/*.h" "src/*.h")
+set_target_properties("${PROJECT_NAME}" PROPERTIES PUBLIC_HEADER "${PUBLIC_HEADERS}")
+install (TARGETS "${PROJECT_NAME}")

README.md

@@ -61,8 +61,9 @@ qemu-$ARCH-static -L . -L /usr/$TRIPLE/  test/test-double
 or generate project with build system of choice e.g. `cmake /path/to/openlib/ -G "MinGW Makefiles"`.
 3. Build with the build system with `cmake --build .`.
 
-Default CMake configuration builds a shared library, this can easily be changed by replacing
-the keyword in the `add_library()` command in the `CMakeLists.txt`.
+Default CMake configuration builds a shared library, this can easily be configured using
+[BUILD_SHARED_LIBS](https://cmake.org/cmake/help/latest/variable/BUILD_SHARED_LIBS.html)
+configuration option.
 
 
 ## Acknowledgements