projects / oweals / busybox.git / blobdiff
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Replace current verbose GPL stuff in libbb/*.c with one-line GPL boilerplate.
[oweals/busybox.git] / Makefile
diff --git a/Makefile b/Makefile
index b31c7bf3c9c1154f2a0e30a6c9893e8ecbadf657..3d3a24be3ce75203d60e6aeebcc3487a9c5c9c51 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,8 @@ noconfig_targets := menuconfig config oldconfig randconfig hosttools \
        clean distclean help \
        release tags
 
+nocheck_targets := clean distclean help release tags
+
 # the toplevel sourcedir
 ifndef top_srcdir
 top_srcdir=$(CURDIR)
@@ -41,22 +43,40 @@ _all:
 
 CONFIG_CONFIG_IN = $(top_srcdir)/Config.in
 
-ifeq ($(KBUILD_SRC),)
-
+ifeq ($(BUILD_SRC),)
 ifdef O
   ifeq ("$(origin O)", "command line")
-    KBUILD_OUTPUT := $(O)
+    BUILD_OUTPUT := $(O)
     top_builddir := $(O)
   endif
 else
 # If no alternate output-dir was specified, we build in cwd
-# We are using KBUILD_OUTPUT nevertheless to make sure that we create
+# We are using BUILD_OUTPUT nevertheless to make sure that we create
 # Rules.mak and the toplevel Makefile, in case they don't exist.
-  KBUILD_OUTPUT := $(top_builddir)
+  BUILD_OUTPUT := $(top_builddir)
+endif
+
+# see if we are in verbose mode
+BUILD_VERBOSE :=
+ifdef V
+  ifeq ("$(origin V)", "command line")
+    BUILD_VERBOSE := $(V)
+  endif
+endif
+ifdef VERBOSE
+  ifeq ("$(origin VERBOSE)", "command line")
+    BUILD_VERBOSE := $(VERBOSE)
+  endif
+endif
+
+ifneq ($(strip $(BUILD_VERBOSE)),)
+  export BUILD_VERBOSE
+  CHECK_VERBOSE := -v
+# ARFLAGS+=v
 endif
 
 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
-# pull in OS specific commands like cp, mkdir, etc. early
+# pull in settings early
 -include $(top_srcdir)/Rules.mak
 endif
 
@@ -67,40 +87,40 @@ all_tree: $(all_tree)
 $(all_tree):
        @mkdir -p "$@"
 
-ifneq ($(KBUILD_OUTPUT),)
+ifneq ($(BUILD_OUTPUT),)
 # Invoke a second make in the output directory, passing relevant variables
 # Check that the output directory actually exists
-saved-output := $(KBUILD_OUTPUT)
-KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
-$(if $(wildcard $(KBUILD_OUTPUT)),, \
+saved-output := $(BUILD_OUTPUT)
+BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
+$(if $(wildcard $(BUILD_OUTPUT)),, \
      $(error output directory "$(saved-output)" does not exist))
 
 .PHONY: $(MAKECMDGOALS)
 
-$(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
-       $(Q)$(MAKE) -C $(KBUILD_OUTPUT) \
+$(filter-out _all,$(MAKECMDGOALS)) _all: $(BUILD_OUTPUT)/Rules.mak $(BUILD_OUTPUT)/Makefile all_tree
+       $(Q)$(MAKE) -C $(BUILD_OUTPUT) \
        top_srcdir=$(top_srcdir) \
        top_builddir=$(top_builddir) \
-       KBUILD_SRC=$(top_srcdir) \
+       BUILD_SRC=$(top_srcdir) \
        -f $(CURDIR)/Makefile $@
 
-$(KBUILD_OUTPUT)/Rules.mak:
+$(BUILD_OUTPUT)/Rules.mak:
        @echo > $@
        @echo top_srcdir=$(top_srcdir) >> $@
-       @echo top_builddir=$(KBUILD_OUTPUT) >> $@
+       @echo top_builddir=$(BUILD_OUTPUT) >> $@
        @echo include $(top_srcdir)/Rules.mak >> $@
 
-$(KBUILD_OUTPUT)/Makefile:
+$(BUILD_OUTPUT)/Makefile:
        @echo > $@
        @echo top_srcdir=$(top_srcdir) >> $@
-       @echo top_builddir=$(KBUILD_OUTPUT) >> $@
-       @echo KBUILD_SRC='$$(top_srcdir)' >> $@
-       @echo include '$$(KBUILD_SRC)'/Makefile >> $@
+       @echo top_builddir=$(BUILD_OUTPUT) >> $@
+       @echo BUILD_SRC='$$(top_srcdir)' >> $@
+       @echo include '$$(BUILD_SRC)'/Makefile >> $@
 
 # Leave processing to above invocation of make
 skip-makefile := 1
-endif # ifneq ($(KBUILD_OUTPUT),)
-endif # ifeq ($(KBUILD_SRC),)
+endif # ifneq ($(BUILD_OUTPUT),)
+endif # ifeq ($(BUILD_SRC),)
 
 ifeq ($(skip-makefile),)
 
@@ -120,6 +140,7 @@ help:
        @echo '  all                    - Executable and documentation'
        @echo '  busybox                - the swiss-army executable'
        @echo '  doc                    - docs/BusyBox.{txt,html,1}'
+       @echo '  html                   - create html-based cross-reference'
        @echo
        @echo 'Configuration:'
        @echo '  allnoconfig            - disable all symbols in .config'
@@ -195,8 +216,6 @@ randconfig: scripts/config/conf
 
 allyesconfig: scripts/config/conf
        @./scripts/config/conf -y $(CONFIG_CONFIG_IN) > /dev/null
-       @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER)=.*/# \1 is not set/" .config
-       @./scripts/config/conf -o $(CONFIG_CONFIG_IN) > /dev/null
 
 allnoconfig: scripts/config/conf
        @./scripts/config/conf -n $(CONFIG_CONFIG_IN) > /dev/null
@@ -207,13 +226,13 @@ allnoconfig: scripts/config/conf
 
 defconfig: scripts/config/conf
        @./scripts/config/conf -y $(CONFIG_CONFIG_IN) > /dev/null
-       @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG.*|STATIC|SELINUX|BUILD_(AT_ONCE|LIBBUSYBOX)|FEATURE_(DEVFS|FULL_LIBBUSYBOX|SHARED_BUSYBOX|MTAB_SUPPORT|CLEAN_UP|UDHCP_DEBUG)|INSTALL_NO_USR))=.*/# \1 is not set/" .config
+       @$(SED) -i -r -e "s/^(CONFIG_(DEBUG.*|STATIC|SELINUX|BUILD_(AT_ONCE|LIBBUSYBOX)|FEATURE_(DEVFS|FULL_LIBBUSYBOX|SHARED_BUSYBOX|MTAB_SUPPORT|CLEAN_UP|UDHCP_DEBUG)|INSTALL_NO_USR))=.*/# \1 is not set/" .config
        @./scripts/config/conf -o $(CONFIG_CONFIG_IN) > /dev/null
 
 
 allbareconfig: scripts/config/conf
        @./scripts/config/conf -y $(CONFIG_CONFIG_IN) > /dev/null
-       @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG|STATIC|SELINUX|DEVFSD|NC_GAPING_SECURITY_HOLE|BUILD_AT_ONCE)).*/# \1 is not set/" .config
+       @$(SED) -i -r -e "s/^(CONFIG_(DEBUG|STATIC|SELINUX|DEVFSD|NC_GAPING_SECURITY_HOLE|BUILD_AT_ONCE)).*/# \1 is not set/" .config
        @$(SED) -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
        @echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
        @yes n | ./scripts/config/conf -o $(CONFIG_CONFIG_IN) > /dev/null
@@ -303,13 +322,9 @@ $(LIBBUSYBOX_SONAME):
 ifndef MAJOR_VERSION
        $(error MAJOR_VERSION needed for $@ is not defined)
 endif
-       $(do_link) $(LIB_CFLAGS) $(CFLAGS_COMBINE) \
+       $(do_link.so) \
        -Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
-       -Wl,-z,combreloc $(LIB_LDFLAGS) \
-       -o $(@) \
-       $(LD_START_GROUP) $(LD_WHOLE_ARCHIVE) \
-       $(LIBRARY_DEFINE) $(^) \
-       $(LD_NO_WHOLE_ARCHIVE) $(LD_END_GROUP)
+       -Wl,-z,combreloc
        @rm -f $(DO_INSTALL_LIBS)
        @for i in $(DO_INSTALL_LIBS); do ln -s $(@) $$i ; done
        $(do_strip)
@@ -317,12 +332,7 @@ endif
 endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 
 busybox_unstripped: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(APPLET_SRC) $(libraries-y)
-       $(do_link) $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) \
-       -o $@ $(LD_START_GROUP)  \
-       $(APPLETS_DEFINE) $(APPLET_SRC) \
-       $(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
-       $(LDBUSYBOX) $(LIBRARIES) \
-       $(LD_END_GROUP)
+       $(do_link)
 
 busybox: busybox_unstripped
        $(Q)cp busybox_unstripped busybox
@@ -357,18 +367,6 @@ ifneq ($(strip $(DO_INSTALL_LIBS)),n)
        done
 endif
 
-# see if we are in verbose mode
-KBUILD_VERBOSE :=
-ifdef V
-  ifeq ("$(origin V)", "command line")
-    KBUILD_VERBOSE := $(V)
-  endif
-endif
-ifneq ($(strip $(KBUILD_VERBOSE)),)
-  CHECK_VERBOSE := -v
-# ARFLAGS+=v
-endif
-
 check test: busybox
        bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite SED="$(SED)" \
        $(SHELL) $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)
@@ -431,20 +429,23 @@ DEP_INCLUDES := include/bb_config.h
 ifeq ($(strip $(CONFIG_BBCONFIG)),y)
 DEP_INCLUDES += include/bbconfigopts.h
 
-include/bbconfigopts.h: .config
+include/bbconfigopts.h: .config $(top_srcdir)/scripts/config/mkconfigs
        $(disp_gen)
        $(Q)$(top_srcdir)/scripts/config/mkconfigs > $@
 endif
 
 ifeq ($(strip $(CONFIG_FEATURE_COMPRESS_USAGE)),y)
 USAGE_BIN:=scripts/usage
-$(USAGE_BIN): $(top_srcdir)/scripts/usage.c
+$(USAGE_BIN): $(top_srcdir)/scripts/usage.c .config \
+               $(top_srcdir)/include/usage.h
        $(do_link.h)
 
 DEP_INCLUDES += include/usage_compressed.h
 
-include/usage_compressed.h: .config $(USAGE_BIN)
-       $(Q)SED="$(SED)" $(SHELL) $(top_srcdir)/scripts/usage_compressed "$(top_builddir)/scripts" > $@
+include/usage_compressed.h: .config $(USAGE_BIN) \
+               $(top_srcdir)/scripts/usage_compressed
+       $(Q)SED="$(SED)" $(SHELL) $(top_srcdir)/scripts/usage_compressed \
+       "$(top_builddir)/scripts" > $@
 endif # CONFIG_FEATURE_COMPRESS_USAGE
 
 # workaround alleged bug in make-3.80, make-3.81
@@ -472,9 +473,10 @@ clean:
            docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
            docs/busybox.net/BusyBox.html busybox.links \
            libbusybox.so* \
-           .config.old busybox busybox_unstripped
+           .config.old busybox busybox_unstripped \
+           include/usage_compressed.h scripts/usage
        - rm -r -f _install testsuite/links
-       - find . -name .\*.flags -o -name \*.o  -o -name \*.om \
+       - find . -name .\*.flags -o -name \*.o  -o -name \*.om -o -name \*.syn \
            -o -name \*.os -o -name \*.osm -o -name \*.a | xargs rm -f
 
 distclean: clean
@@ -504,6 +506,17 @@ release: distclean #doc
 tags:
        ctags -R .
 
+# documentation, cross-reference
+# Modern distributions already ship synopsis packages (e.g. debian)
+# If you have an old distribution go to http://synopsis.fresco.org/
+syn_tgt := $(wildcard $(patsubst %,%/*.c,$(SRC_DIRS)))
+syn     := $(patsubst %.c, %.syn, $(syn_tgt))
+
+%.syn: %.c
+       synopsis -p C -l Comments.SSDFilter,Comments.Previous $(INCS) -Wp,verbose,debug,preprocess,cppflags="'$(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) $(APPLETS_DEFINE) $(BUSYBOX_DEFINE)'" -o $@ $<
+html: $(syn)
+       synopsis -f HTML -Wf,title="'BusyBox Documentation'" -o $@ $^
+
 
 endif # ifeq ($(skip-makefile),)
 
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