1# This Makefile is run in the "git" directory in order to re-use Git's
  2# build variables and operating system detection.  Hence all files in
  3# CGit's directory must be prefixed with "../".
  4include Makefile
  5
  6CGIT_PREFIX = ../
  7
  8-include $(CGIT_PREFIX)cgit.conf
  9
 10# The CGIT_* variables are inherited when this file is called from the
 11# main Makefile - they are defined there.
 12
 13$(CGIT_PREFIX)VERSION: force-version
 14	@cd $(CGIT_PREFIX) && '$(SHELL_PATH_SQ)' ./gen-version.sh "$(CGIT_VERSION)"
 15-include $(CGIT_PREFIX)VERSION
 16.PHONY: force-version
 17
 18# CGIT_CFLAGS is a separate variable so that we can track it separately
 19# and avoid rebuilding all of Git when these variables change.
 20CGIT_CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
 21CGIT_CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
 22CGIT_CFLAGS += -DCGIT_CACHE_ROOT='"$(CACHE_ROOT)"'
 23
 24ifdef NO_C99_FORMAT
 25	CFLAGS += -DNO_C99_FORMAT
 26endif
 27
 28ifdef NO_LUA
 29	LUA_MESSAGE := linking without specified Lua support
 30	CGIT_CFLAGS += -DNO_LUA
 31else
 32LUAJIT_CFLAGS := $(shell pkg-config --cflags luajit 2>/dev/null)
 33LUAJIT_LIBS := $(shell pkg-config --libs luajit 2>/dev/null)
 34LUA_LIBS := $(shell pkg-config --libs lua 2>/dev/null)
 35LUA_CFLAGS := $(shell pkg-config --cflags lua 2>/dev/null)
 36ifeq (JIT,$(LUA_IMPLEMENTATION))
 37	ifeq ($(strip $(LUAJIT_LIBS)),)
 38 		$(error LuaJIT specified via LUA_IMPLEMENTATION=JIT, but library could not be found.)
 39	endif
 40	LUA_MESSAGE := linking with selected LuaJIT
 41	CGIT_LIBS += $(LUAJIT_LIBS)
 42	CGIT_CFLAGS += $(LUAJIT_CFLAGS)
 43else ifeq (VANILLA,$(LUA_IMPLEMENTATION))
 44	ifeq ($(strip $(LUA_LIBS)),)
 45 		$(error Lua specified via LUA_IMPLEMENTATION=VANILLA, but library could not be found.)
 46	endif
 47	LUA_MESSAGE := linking with selected Lua
 48	CGIT_LIBS += $(LUA_LIBS)
 49	CGIT_LIBS += $(LUA_CFLAGS)
 50else ifneq ($(strip $(LUAJIT_LIBS)),)
 51	LUA_MESSAGE := linking with autodetected LuaJIT
 52	CGIT_LIBS += $(LUAJIT_LIBS)
 53	CGIT_CFLAGS += $(LUAJIT_CFLAGS)
 54else ifneq ($(strip $(LUA_LIBS)),)
 55	LUA_MESSAGE := linking with autodetected Lua
 56	CGIT_LIBS += $(LUA_LIBS)
 57	CGIT_CFLAGS += $(LUA_CFLAGS)
 58else
 59	LUA_MESSAGE := linking without autodetected Lua support
 60	NO_LUA := YesPlease
 61	CGIT_CFLAGS += -DNO_LUA
 62endif
 63
 64endif
 65
 66# Add -ldl to linker flags on non-BSD systems.
 67ifeq ($(findstring BSD,$(uname_S)),)
 68	CGIT_LIBS += -ldl
 69endif
 70
 71# glibc 2.1+ offers sendfile which the most common C library on Linux
 72ifeq ($(uname_S),Linux)
 73	HAVE_LINUX_SENDFILE = YesPlease
 74endif
 75
 76ifdef HAVE_LINUX_SENDFILE
 77	CGIT_CFLAGS += -DHAVE_LINUX_SENDFILE
 78endif
 79
 80CGIT_OBJ_NAMES += cgit.o
 81CGIT_OBJ_NAMES += cache.o
 82CGIT_OBJ_NAMES += cmd.o
 83CGIT_OBJ_NAMES += configfile.o
 84CGIT_OBJ_NAMES += filter.o
 85CGIT_OBJ_NAMES += html.o
 86CGIT_OBJ_NAMES += parsing.o
 87CGIT_OBJ_NAMES += scan-tree.o
 88CGIT_OBJ_NAMES += shared.o
 89CGIT_OBJ_NAMES += ui-atom.o
 90CGIT_OBJ_NAMES += ui-blob.o
 91CGIT_OBJ_NAMES += ui-clone.o
 92CGIT_OBJ_NAMES += ui-commit.o
 93CGIT_OBJ_NAMES += ui-diff.o
 94CGIT_OBJ_NAMES += ui-log.o
 95CGIT_OBJ_NAMES += ui-patch.o
 96CGIT_OBJ_NAMES += ui-plain.o
 97CGIT_OBJ_NAMES += ui-refs.o
 98CGIT_OBJ_NAMES += ui-repolist.o
 99CGIT_OBJ_NAMES += ui-shared.o
100CGIT_OBJ_NAMES += ui-snapshot.o
101CGIT_OBJ_NAMES += ui-ssdiff.o
102CGIT_OBJ_NAMES += ui-stats.o
103CGIT_OBJ_NAMES += ui-summary.o
104CGIT_OBJ_NAMES += ui-tag.o
105CGIT_OBJ_NAMES += ui-tree.o
106
107CGIT_OBJS := $(addprefix $(CGIT_PREFIX),$(CGIT_OBJ_NAMES))
108
109# Only cgit.c reference CGIT_VERSION so we only rebuild its objects when the
110# version changes.
111CGIT_VERSION_OBJS := $(addprefix $(CGIT_PREFIX),cgit.o)
112$(CGIT_VERSION_OBJS): $(CGIT_PREFIX)VERSION
113$(CGIT_VERSION_OBJS): EXTRA_CPPFLAGS = \
114	-DCGIT_VERSION='"$(CGIT_VERSION)"'
115
116# Git handles dependencies using ":=" so dependencies in CGIT_OBJ are not
117# handled by that and we must handle them ourselves.
118cgit_dep_files := $(foreach f,$(CGIT_OBJS),$(dir $f).depend/$(notdir $f).d)
119cgit_dep_files_present := $(wildcard $(cgit_dep_files))
120ifneq ($(cgit_dep_files_present),)
121include $(cgit_dep_files_present)
122endif
123
124ifeq ($(wildcard $(CGIT_PREFIX).depend),)
125missing_dep_dirs += $(CGIT_PREFIX).depend
126endif
127
128$(CGIT_PREFIX).depend:
129	@mkdir -p $@
130
131$(CGIT_PREFIX)CGIT-CFLAGS: FORCE
132	@FLAGS='$(subst ','\'',$(CGIT_CFLAGS))'; \
133	    if test x"$$FLAGS" != x"`cat ../CGIT-CFLAGS 2>/dev/null`" ; then \
134		echo 1>&2 "    * new CGit build flags"; \
135		echo "$$FLAGS" >$(CGIT_PREFIX)CGIT-CFLAGS; \
136            fi
137
138$(CGIT_OBJS): %.o: %.c GIT-CFLAGS $(CGIT_PREFIX)CGIT-CFLAGS $(missing_dep_dirs)
139	$(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $(CGIT_CFLAGS) $<
140
141$(CGIT_PREFIX)cgit: $(CGIT_OBJS) GIT-LDFLAGS $(GITLIBS)
142	@echo 1>&1 "    * $(LUA_MESSAGE)"
143	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) $(CGIT_LIBS)