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
 24PKG_CONFIG ?= pkg-config
 25
 26ifdef NO_C99_FORMAT
 27	CFLAGS += -DNO_C99_FORMAT
 28endif
 29
 30ifdef NO_LUA
 31	LUA_MESSAGE := linking without specified Lua support
 32	CGIT_CFLAGS += -DNO_LUA
 33else
 34ifeq ($(LUA_PKGCONFIG),)
 35	LUA_PKGCONFIG := $(shell for pc in luajit lua lua5.2 lua5.1; do \
 36			$(PKG_CONFIG) --exists $$pc 2>/dev/null && echo $$pc && break; \
 37			done)
 38	LUA_MODE := autodetected
 39else
 40	LUA_MODE := specified
 41endif
 42ifneq ($(LUA_PKGCONFIG),)
 43	LUA_MESSAGE := linking with $(LUA_MODE) $(LUA_PKGCONFIG)
 44	LUA_LIBS := $(shell $(PKG_CONFIG) --libs $(LUA_PKGCONFIG) 2>/dev/null)
 45	LUA_CFLAGS := $(shell $(PKG_CONFIG) --cflags $(LUA_PKGCONFIG) 2>/dev/null)
 46	CGIT_LIBS += $(LUA_LIBS)
 47	CGIT_CFLAGS += $(LUA_CFLAGS)
 48else
 49	LUA_MESSAGE := linking without autodetected Lua support
 50	NO_LUA := YesPlease
 51	CGIT_CFLAGS += -DNO_LUA
 52endif
 53
 54endif
 55
 56# Add -ldl to linker flags on systems that commonly use GNU libc.
 57ifneq (,$(filter $(uname_S),Linux GNU/kFreeBSD))
 58	CGIT_LIBS += -ldl
 59endif
 60
 61# glibc 2.1+ offers sendfile which the most common C library on Linux
 62ifeq ($(uname_S),Linux)
 63	HAVE_LINUX_SENDFILE = YesPlease
 64endif
 65
 66ifdef HAVE_LINUX_SENDFILE
 67	CGIT_CFLAGS += -DHAVE_LINUX_SENDFILE
 68endif
 69
 70CGIT_OBJ_NAMES += cgit.o
 71CGIT_OBJ_NAMES += cache.o
 72CGIT_OBJ_NAMES += cmd.o
 73CGIT_OBJ_NAMES += configfile.o
 74CGIT_OBJ_NAMES += filter.o
 75CGIT_OBJ_NAMES += html.o
 76CGIT_OBJ_NAMES += parsing.o
 77CGIT_OBJ_NAMES += scan-tree.o
 78CGIT_OBJ_NAMES += shared.o
 79CGIT_OBJ_NAMES += ui-atom.o
 80CGIT_OBJ_NAMES += ui-blob.o
 81CGIT_OBJ_NAMES += ui-clone.o
 82CGIT_OBJ_NAMES += ui-commit.o
 83CGIT_OBJ_NAMES += ui-diff.o
 84CGIT_OBJ_NAMES += ui-log.o
 85CGIT_OBJ_NAMES += ui-patch.o
 86CGIT_OBJ_NAMES += ui-plain.o
 87CGIT_OBJ_NAMES += ui-refs.o
 88CGIT_OBJ_NAMES += ui-repolist.o
 89CGIT_OBJ_NAMES += ui-shared.o
 90CGIT_OBJ_NAMES += ui-snapshot.o
 91CGIT_OBJ_NAMES += ui-ssdiff.o
 92CGIT_OBJ_NAMES += ui-stats.o
 93CGIT_OBJ_NAMES += ui-summary.o
 94CGIT_OBJ_NAMES += ui-tag.o
 95CGIT_OBJ_NAMES += ui-tree.o
 96
 97CGIT_OBJS := $(addprefix $(CGIT_PREFIX),$(CGIT_OBJ_NAMES))
 98
 99# Only cgit.c reference CGIT_VERSION so we only rebuild its objects when the
100# version changes.
101CGIT_VERSION_OBJS := $(addprefix $(CGIT_PREFIX),cgit.o cgit.sp)
102$(CGIT_VERSION_OBJS): $(CGIT_PREFIX)VERSION
103$(CGIT_VERSION_OBJS): EXTRA_CPPFLAGS = \
104	-DCGIT_VERSION='"$(CGIT_VERSION)"'
105
106# Git handles dependencies using ":=" so dependencies in CGIT_OBJ are not
107# handled by that and we must handle them ourselves.
108cgit_dep_files := $(foreach f,$(CGIT_OBJS),$(dir $f).depend/$(notdir $f).d)
109cgit_dep_files_present := $(wildcard $(cgit_dep_files))
110ifneq ($(cgit_dep_files_present),)
111include $(cgit_dep_files_present)
112endif
113
114ifeq ($(wildcard $(CGIT_PREFIX).depend),)
115missing_dep_dirs += $(CGIT_PREFIX).depend
116endif
117
118$(CGIT_PREFIX).depend:
119	@mkdir -p $@
120
121$(CGIT_PREFIX)CGIT-CFLAGS: FORCE
122	@FLAGS='$(subst ','\'',$(CGIT_CFLAGS))'; \
123	    if test x"$$FLAGS" != x"`cat ../CGIT-CFLAGS 2>/dev/null`" ; then \
124		echo 1>&2 "    * new CGit build flags"; \
125		echo "$$FLAGS" >$(CGIT_PREFIX)CGIT-CFLAGS; \
126            fi
127
128$(CGIT_OBJS): %.o: %.c GIT-CFLAGS $(CGIT_PREFIX)CGIT-CFLAGS $(missing_dep_dirs)
129	$(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $(CGIT_CFLAGS) $<
130
131$(CGIT_PREFIX)cgit: $(CGIT_OBJS) GIT-LDFLAGS $(GITLIBS)
132	@echo 1>&1 "    * $(LUA_MESSAGE)"
133	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) $(CGIT_LIBS)
134
135CGIT_SP_OBJS := $(patsubst %.o,%.sp,$(CGIT_OBJS))
136
137$(CGIT_SP_OBJS): %.sp: %.c GIT-CFLAGS $(CGIT_PREFIX)CGIT-CFLAGS FORCE
138	$(QUIET_SP)cgcc -no-compile $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $(CGIT_CFLAGS) $(SPARSE_FLAGS) $<
139
140cgit-sparse: $(CGIT_SP_OBJS)