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