cgit.mk

   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 "../".
   4 include Makefile
   5
   6 CGIT_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 $(CGIT_PREFIX)VERSION
  16 .PHONY: force-version
  17
  18 # CGIT_CFLAGS is a separate variable so that we can track it separately
  19 # and avoid rebuilding all of Git when these variables change.
  20 CGIT_CFLAGS += -DCGIT_CONFIG='"$(CGIT_CONFIG)"'
  21 CGIT_CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
  22 CGIT_CFLAGS += -DCGIT_CACHE_ROOT='"$(CACHE_ROOT)"'
  23
  24 ifdef NO_C99_FORMAT
  25         CFLAGS += -DNO_C99_FORMAT
  26 endif
  27
  28 ifdef NO_LUA
  29         LUA_MESSAGE := linking without specified Lua support
  30         CGIT_CFLAGS += -DNO_LUA
  31 else
  32 LUAJIT_CFLAGS := $(shell pkg-config --cflags luajit 2>/dev/null)
  33 LUAJIT_LIBS := $(shell pkg-config --libs luajit 2>/dev/null)
  34 LUA_LIBS := $(shell pkg-config --libs lua 2>/dev/null)
  35 LUA_CFLAGS := $(shell pkg-config --cflags lua 2>/dev/null)
  36 ifeq (JIT,$(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 += $(LUAJIT_CFLAGS)
  43 else ifeq (VANILLA,$(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 += $(LUA_CFLAGS)
  50 else ifneq ($(strip $(LUAJIT_LIBS)),)
  51         LUA_MESSAGE := linking with autodetected LuaJIT
  52         CGIT_LIBS += $(LUAJIT_LIBS)
  53         CGIT_CFLAGS += $(LUAJIT_CFLAGS)
  54 else ifneq ($(strip $(LUA_LIBS)),)
  55         LUA_MESSAGE := linking with autodetected Lua
  56         CGIT_LIBS += $(LUA_LIBS)
  57         CGIT_CFLAGS += $(LUA_CFLAGS)
  58 else
  59         LUA_MESSAGE := linking without autodetected Lua support
  60         NO_LUA := YesPlease
  61         CGIT_CFLAGS += -DNO_LUA
  62 endif
  63
  64 endif
  65
  66 # Add -ldl to linker flags on non-BSD systems.
  67 ifeq ($(findstring BSD,$(uname_S)),)
  68         CGIT_LIBS += -ldl
  69 endif
  70
  71
  72 CGIT_OBJ_NAMES += cgit.o
  73 CGIT_OBJ_NAMES += cache.o
  74 CGIT_OBJ_NAMES += cmd.o
  75 CGIT_OBJ_NAMES += configfile.o
  76 CGIT_OBJ_NAMES += filter.o
  77 CGIT_OBJ_NAMES += html.o
  78 CGIT_OBJ_NAMES += parsing.o
  79 CGIT_OBJ_NAMES += scan-tree.o
  80 CGIT_OBJ_NAMES += shared.o
  81 CGIT_OBJ_NAMES += ui-atom.o
  82 CGIT_OBJ_NAMES += ui-blob.o
  83 CGIT_OBJ_NAMES += ui-clone.o
  84 CGIT_OBJ_NAMES += ui-commit.o
  85 CGIT_OBJ_NAMES += ui-diff.o
  86 CGIT_OBJ_NAMES += ui-log.o
  87 CGIT_OBJ_NAMES += ui-patch.o
  88 CGIT_OBJ_NAMES += ui-plain.o
  89 CGIT_OBJ_NAMES += ui-refs.o
  90 CGIT_OBJ_NAMES += ui-repolist.o
  91 CGIT_OBJ_NAMES += ui-shared.o
  92 CGIT_OBJ_NAMES += ui-snapshot.o
  93 CGIT_OBJ_NAMES += ui-ssdiff.o
  94 CGIT_OBJ_NAMES += ui-stats.o
  95 CGIT_OBJ_NAMES += ui-summary.o
  96 CGIT_OBJ_NAMES += ui-tag.o
  97 CGIT_OBJ_NAMES += ui-tree.o
  98
  99 CGIT_OBJS := $(addprefix $(CGIT_PREFIX),$(CGIT_OBJ_NAMES))
 100
 101 # Only cgit.c reference CGIT_VERSION so we only rebuild its objects when the
 102 # version changes.
 103 CGIT_VERSION_OBJS := $(addprefix $(CGIT_PREFIX),cgit.o)
 104 $(CGIT_VERSION_OBJS): $(CGIT_PREFIX)VERSION
 105 $(CGIT_VERSION_OBJS): EXTRA_CPPFLAGS = \
 106         -DCGIT_VERSION='"$(CGIT_VERSION)"'
 107
 108 # Git handles dependencies using ":=" so dependencies in CGIT_OBJ are not
 109 # handled by that and we must handle them ourselves.
 110 cgit_dep_files := $(foreach f,$(CGIT_OBJS),$(dir $f).depend/$(notdir $f).d)
 111 cgit_dep_files_present := $(wildcard $(cgit_dep_files))
 112 ifneq ($(cgit_dep_files_present),)
 113 include $(cgit_dep_files_present)
 114 endif
 115
 116 ifeq ($(wildcard $(CGIT_PREFIX).depend),)
 117 missing_dep_dirs += $(CGIT_PREFIX).depend
 118 endif
 119
 120 $(CGIT_PREFIX).depend:
 121         @mkdir -p $@
 122
 123 $(CGIT_PREFIX)CGIT-CFLAGS: FORCE
 124         @FLAGS='$(subst ','\'',$(CGIT_CFLAGS))'; \
 125             if test x"$$FLAGS" != x"`cat ../CGIT-CFLAGS 2>/dev/null`" ; then \
 126                 echo 1>&2 "    * new CGit build flags"; \
 127                 echo "$$FLAGS" >$(CGIT_PREFIX)CGIT-CFLAGS; \
 128             fi
 129
 130 $(CGIT_OBJS): %.o: %.c GIT-CFLAGS $(CGIT_PREFIX)CGIT-CFLAGS $(missing_dep_dirs)
 131         $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $(CGIT_CFLAGS) $<
 132
 133 $(CGIT_PREFIX)cgit: $(CGIT_OBJS) GIT-LDFLAGS $(GITLIBS)
 134         @echo 1>&1 "    * $(LUA_MESSAGE)"
 135         $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS) $(CGIT_LIBS)