CMakeLists.txt

# CMake build script for the libgit2 project
#
# Building (out of source build):
# > mkdir build && cd build
# > cmake .. [-DSETTINGS=VALUE]
# > cmake --build .
#
# Testing:
# > ctest -V
#
# Install:
# > cmake --build . --target install

PROJECT(libgit2 C)
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)

FILE(STRINGS "include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")

STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"([0-9]+).*$" "\\1" LIBGIT2_VERSION_MAJOR "${GIT2_HEADER}")
STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_MINOR  "${GIT2_HEADER}")
STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_REV "${GIT2_HEADER}")
SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")

IF (AMIGA)
	# Default AmigaOS to use the PowerPC SHA1
	SET(SHA1_TYPE "ppc")
ENDIF()

# Find required dependencies
INCLUDE_DIRECTORIES(src include deps/http-parser)

IF (WIN32 AND NOT MINGW)
	ADD_DEFINITIONS(-DGIT_WINHTTP)
ELSE ()
	FIND_PACKAGE(OpenSSL)
	FILE(GLOB SRC_HTTP deps/http-parser/*.c)
ENDIF()

# Specify sha1 implementation
IF (SHA1_TYPE STREQUAL "ppc")
	ADD_DEFINITIONS(-DPPC_SHA1)
	FILE(GLOB SRC_SHA1 src/ppc/*.c src/ppc/*.S)
ELSE ()
	SET (SRC_SHA1)
ENDIF()

IF (NOT WIN32)
	FIND_PACKAGE(ZLIB)
	IF (CMAKE_SYSTEM_NAME STREQUAL "AmigaOS")
		INCLUDE_DIRECTORIES(deps/regex)
		SET(SRC_REGEX deps/regex/regex.c)
	ENDIF()
ELSE()
	# Windows doesn't understand POSIX regex on its own
	INCLUDE_DIRECTORIES(deps/regex)
	SET(SRC_REGEX deps/regex/regex.c)
ENDIF()

IF (ZLIB_FOUND)
	INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
	LINK_LIBRARIES(${ZLIB_LIBRARIES})
ELSE (ZLIB_FOUND)
	INCLUDE_DIRECTORIES(deps/zlib)
	ADD_DEFINITIONS(-DNO_VIZ -DSTDC -DNO_GZIP)
	FILE(GLOB SRC_ZLIB deps/zlib/*.c)
ENDIF()

# Installation paths
SET(INSTALL_BIN bin CACHE PATH "Where to install binaries to.")
SET(LIB_INSTALL_DIR lib CACHE PATH "Where to install libraries to.")