summaryrefslogtreecommitdiff
path: root/src/CMakeLists.txt
blob: d6a1036675b05bd7af149282bce9d904e74d1fbf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
add_library(git2internal OBJECT)
set_target_properties(git2internal PROPERTIES C_STANDARD 90)


if(DEPRECATE_HARD)
        add_definitions(-DGIT_DEPRECATE_HARD)
endif()

if(DEBUG_POOL)
	set(GIT_DEBUG_POOL 1)
endif()
add_feature_info(debugpool GIT_DEBUG_POOL "debug pool allocator")

if(DEBUG_STRICT_ALLOC)
	set(GIT_DEBUG_STRICT_ALLOC 1)
endif()
add_feature_info(debugalloc GIT_DEBUG_STRICT_ALLOC "debug strict allocators")

if(DEBUG_STRICT_OPEN)
	set(GIT_DEBUG_STRICT_OPEN 1)
endif()
add_feature_info(debugopen GIT_DEBUG_STRICT_OPEN "path validation in open")


include(PkgBuildConfig)
include(SanitizeBool)

# This variable will contain the libraries we need to put into
# libgit2.pc's Requires.private. That is, what we're linking to or
# what someone who's statically linking us needs to link to.
set(LIBGIT2_PC_REQUIRES "")
# This will be set later if we use the system's http-parser library or
# use iconv (OSX) and will be written to the Libs.private field in the
# pc file.
set(LIBGIT2_PC_LIBS "")

set(LIBGIT2_INCLUDES
	"${CMAKE_CURRENT_BINARY_DIR}"
	"${libgit2_SOURCE_DIR}/src"
	"${libgit2_SOURCE_DIR}/include")

if(HAVE_FUTIMENS)
	set(GIT_USE_FUTIMENS 1)
endif ()
add_feature_info(futimens GIT_USE_FUTIMENS "futimens support")

check_prototype_definition(qsort_r
	"void qsort_r(void *base, size_t nmemb, size_t size, void *thunk, int (*compar)(void *, const void *, const void *))"
	"" "stdlib.h" GIT_QSORT_R_BSD)

check_prototype_definition(qsort_r
	"void qsort_r(void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *, void *), void *arg)"
	"" "stdlib.h" GIT_QSORT_R_GNU)

check_function_exists(qsort_s GIT_QSORT_S)

# Find required dependencies

if(WIN32)
	list(APPEND LIBGIT2_SYSTEM_LIBS ws2_32)
elseif(CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
	list(APPEND LIBGIT2_SYSTEM_LIBS socket nsl)
	list(APPEND LIBGIT2_PC_LIBS "-lsocket" "-lnsl")
elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku")
	list(APPEND LIBGIT2_SYSTEM_LIBS network)
	list(APPEND LIBGIT2_PC_LIBS "-lnetwork")
endif()

check_library_exists(rt clock_gettime "time.h" NEED_LIBRT)
if(NEED_LIBRT)
	list(APPEND LIBGIT2_SYSTEM_LIBS rt)
	list(APPEND LIBGIT2_PC_LIBS "-lrt")
endif()

if(USE_THREADS)
	list(APPEND LIBGIT2_SYSTEM_LIBS ${CMAKE_THREAD_LIBS_INIT})
	list(APPEND LIBGIT2_PC_LIBS ${CMAKE_THREAD_LIBS_INIT})
endif()
add_feature_info(threadsafe USE_THREADS "threadsafe support")


if(WIN32 AND EMBED_SSH_PATH)
	file(GLOB SRC_SSH "${EMBED_SSH_PATH}/src/*.c")
	list(SORT SRC_SSH)
	target_sources(git2internal PRIVATE ${SRC_SSH})

	list(APPEND LIBGIT2_SYSTEM_INCLUDES "${EMBED_SSH_PATH}/include")
	file(WRITE "${EMBED_SSH_PATH}/src/libssh2_config.h" "#define HAVE_WINCNG\n#define LIBSSH2_WINCNG\n#include \"../win32/libssh2_config.h\"")
	set(GIT_SSH 1)
endif()

include(SelectHTTPSBackend)
include(SelectHashes)
include(SelectHTTPParser)
include(SelectRegex)
include(SelectSSH)
include(SelectWinHTTP)
include(SelectZlib)


if(USE_SHA1 STREQUAL "CollisionDetection")
	file(GLOB SRC_SHA1 hash/sha1/collisiondetect.* hash/sha1/sha1dc/*)
elseif(USE_SHA1 STREQUAL "OpenSSL")
	file(GLOB SRC_SHA1 hash/sha1/openssl.*)
elseif(USE_SHA1 STREQUAL "CommonCrypto")
	file(GLOB SRC_SHA1 hash/sha1/common_crypto.*)
elseif(USE_SHA1 STREQUAL "mbedTLS")
	file(GLOB SRC_SHA1 hash/sha1/mbedtls.*)
elseif(USE_SHA1 STREQUAL "Win32")
	file(GLOB SRC_SHA1 hash/sha1/win32.*)
elseif(USE_SHA1 STREQUAL "Generic")
	file(GLOB SRC_SHA1 hash/sha1/generic.*)
endif()
list(APPEND SRC_SHA1 "hash/sha1.h")
target_sources(git2internal PRIVATE ${SRC_SHA1})

# Optional external dependency: ntlmclient
if(USE_NTLMCLIENT)
	set(GIT_NTLM 1)
	add_subdirectory("${libgit2_SOURCE_DIR}/deps/ntlmclient" "${libgit2_BINARY_DIR}/deps/ntlmclient")
	list(APPEND LIBGIT2_DEPENDENCY_INCLUDES "${libgit2_SOURCE_DIR}/deps/ntlmclient")
	list(APPEND LIBGIT2_DEPENDENCY_OBJECTS "$<TARGET_OBJECTS:ntlmclient>")
endif()
add_feature_info(ntlmclient GIT_NTLM "NTLM authentication support for Unix")

# Optional external dependency: GSSAPI

include(SelectGSSAPI)

# Optional external dependency: iconv
if(USE_ICONV)
	find_package(Iconv)
endif()
if(ICONV_FOUND)
	set(GIT_USE_ICONV 1)
	list(APPEND LIBGIT2_SYSTEM_INCLUDES ${ICONV_INCLUDE_DIR})
	list(APPEND LIBGIT2_SYSTEM_LIBS ${ICONV_LIBRARIES})
	list(APPEND LIBGIT2_PC_LIBS ${ICONV_LIBRARIES})
endif()
add_feature_info(iconv GIT_USE_ICONV "iconv encoding conversion support")


if(USE_THREADS)
	if(NOT WIN32)
		find_package(Threads REQUIRED)
	endif()

	set(GIT_THREADS 1)
endif()

if(USE_NSEC)
	set(GIT_USE_NSEC 1)
endif()

if(HAVE_STRUCT_STAT_ST_MTIM)
	set(GIT_USE_STAT_MTIM 1)
elseif(HAVE_STRUCT_STAT_ST_MTIMESPEC)
	set(GIT_USE_STAT_MTIMESPEC 1)
elseif(HAVE_STRUCT_STAT_ST_MTIME_NSEC)
	set(GIT_USE_STAT_MTIME_NSEC 1)
endif()

target_compile_definitions(git2internal PRIVATE _FILE_OFFSET_BITS=64)

# Collect sourcefiles
file(GLOB SRC_H
	"${libgit2_SOURCE_DIR}/include/git2.h"
	"${libgit2_SOURCE_DIR}/include/git2/*.h"
	"${libgit2_SOURCE_DIR}/include/git2/sys/*.h")
list(SORT SRC_H)
target_sources(git2internal PRIVATE ${SRC_H})

# On Windows use specific platform sources
if(WIN32 AND NOT CYGWIN)
	set(WIN_RC "win32/git2.rc")

	file(GLOB SRC_OS win32/*.c win32/*.h)
	list(SORT SRC_OS)
	target_sources(git2internal PRIVATE ${SRC_OS})
elseif(AMIGA)
	target_compile_definitions(git2internal PRIVATE NO_ADDRINFO NO_READDIR_R NO_MMAP)
else()
	file(GLOB SRC_OS unix/*.c unix/*.h)
	list(SORT SRC_OS)
	target_sources(git2internal PRIVATE ${SRC_OS})
endif()

if(USE_LEAK_CHECKER STREQUAL "valgrind")
	target_compile_definitions(git2internal PRIVATE VALGRIND)
endif()

file(GLOB SRC_GIT2 *.c *.h
	allocators/*.c allocators/*.h
	streams/*.c streams/*.h
	transports/*.c transports/*.h
	xdiff/*.c xdiff/*.h)
list(SORT SRC_GIT2)
target_sources(git2internal PRIVATE ${SRC_GIT2})

if(APPLE)
	# The old Secure Transport API has been deprecated in macOS 10.15.
	set_source_files_properties(streams/stransport.c PROPERTIES COMPILE_FLAGS -Wno-deprecated)
endif()

# the xdiff dependency is not (yet) warning-free, disable warnings as
# errors for the xdiff sources until we've sorted them out
if(MSVC)
	set_source_files_properties(xdiff/xdiffi.c PROPERTIES COMPILE_FLAGS -WX-)
	set_source_files_properties(xdiff/xutils.c PROPERTIES COMPILE_FLAGS -WX-)
endif()

# Determine architecture of the machine
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
	set(GIT_ARCH_64 1)
elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
	set(GIT_ARCH_32 1)
elseif(CMAKE_SIZEOF_VOID_P)
	message(FATAL_ERROR "Unsupported architecture (pointer size is ${CMAKE_SIZEOF_VOID_P} bytes)")
else()
	message(FATAL_ERROR "Unsupported architecture (CMAKE_SIZEOF_VOID_P is unset)")
endif()

configure_file(features.h.in git2/sys/features.h)

ide_split_sources(git2internal)
list(APPEND LIBGIT2_OBJECTS $<TARGET_OBJECTS:git2internal> ${LIBGIT2_DEPENDENCY_OBJECTS})

target_include_directories(git2internal PRIVATE ${LIBGIT2_INCLUDES} ${LIBGIT2_DEPENDENCY_INCLUDES} PUBLIC ${libgit2_SOURCE_DIR}/include)
target_include_directories(git2internal SYSTEM PRIVATE ${LIBGIT2_SYSTEM_INCLUDES})

set(LIBGIT2_INCLUDES ${LIBGIT2_INCLUDES} PARENT_SCOPE)
set(LIBGIT2_OBJECTS ${LIBGIT2_OBJECTS} PARENT_SCOPE)
set(LIBGIT2_DEPENDENCY_INCLUDES ${LIBGIT2_DEPENDENCY_INCLUDES} PARENT_SCOPE)
set(LIBGIT2_DEPENDENCY_OBJECTS ${LIBGIT2_DEPENDENCY_OBJECTS} PARENT_SCOPE)
set(LIBGIT2_SYSTEM_INCLUDES ${LIBGIT2_SYSTEM_INCLUDES} PARENT_SCOPE)
set(LIBGIT2_SYSTEM_LIBS ${LIBGIT2_SYSTEM_LIBS} PARENT_SCOPE)

if(XCODE_VERSION)
	# This is required for Xcode to actually link the libgit2 library
	# when using only object libraries.
	file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy.c "")
	list(APPEND LIBGIT2_OBJECTS ${CMAKE_CURRENT_BINARY_DIR}/dummy.c)
endif()

# Compile and link libgit2
add_library(git2 ${WIN_RC} ${LIBGIT2_OBJECTS})
target_link_libraries(git2 ${LIBGIT2_SYSTEM_LIBS})

set_target_properties(git2 PROPERTIES C_STANDARD 90)
set_target_properties(git2 PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR})
set_target_properties(git2 PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR})
set_target_properties(git2 PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR})

# Workaround for Cmake bug #0011240 (see http://public.kitware.com/Bug/view.php?id=11240)
# Win64+MSVC+static libs = linker error
if(MSVC AND GIT_ARCH_64 AND NOT BUILD_SHARED_LIBS)
	set_target_properties(git2 PROPERTIES STATIC_LIBRARY_FLAGS "/MACHINE:x64")
endif()

ide_split_sources(git2)

if(SONAME)
	set_target_properties(git2 PROPERTIES VERSION ${libgit2_VERSION})
	set_target_properties(git2 PROPERTIES SOVERSION "${libgit2_VERSION_MAJOR}.${libgit2_VERSION_MINOR}")
	if(LIBGIT2_FILENAME)
		target_compile_definitions(git2 PRIVATE LIBGIT2_FILENAME=\"${LIBGIT2_FILENAME}\")
		set_target_properties(git2 PROPERTIES OUTPUT_NAME ${LIBGIT2_FILENAME})
	elseif(DEFINED LIBGIT2_PREFIX)
		set_target_properties(git2 PROPERTIES PREFIX "${LIBGIT2_PREFIX}")
	endif()
endif()

pkg_build_config(NAME libgit2
	VERSION ${libgit2_VERSION}
	DESCRIPTION "The git library, take 2"
	LIBS_SELF git2
	PRIVATE_LIBS ${LIBGIT2_PC_LIBS}
	REQUIRES ${LIBGIT2_PC_REQUIRES}
)

if(MSVC_IDE)
	# Precompiled headers
	set_target_properties(git2 PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
	set_source_files_properties(win32/precompiled.c COMPILE_FLAGS "/Ycprecompiled.h")
endif()

# Install
install(TARGETS git2
	RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
install(DIRECTORY ${libgit2_SOURCE_DIR}/include/git2 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(FILES ${libgit2_SOURCE_DIR}/include/git2.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})