core-lightning/external/Makefile
Rusty Russell 76dd1577bd external: fix submodule handling for parallel builds, submodule URL changes.
If we change an upstream URL, all submodules break.  Users would need
to run 'git submodule sync'.  Note that the libbacktrace fix was merged
upstream so this is no longer necessary, but it's good for future changes.

Also, stress-testing reveals that git submodule fails locking
'.git/config' when run in paralell.  It also segfaults and other
problems.

This is my final attempt to fix submodules; I've wasted far too many
days on obscure problems it creates: I've already lost one copy of my
repo to apparently unfixable submodule preoblems.  The next "fix" will
be to simply import the source code so it works properly.

Reported-by: @jsarenik
Fixes: #1543
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-06-08 17:56:01 +02:00

102 lines
4.5 KiB
Makefile

SUBMODULES = \
external/libsodium \
external/libwally-core \
external/jsmn \
external/libbase58 \
external/libbacktrace
LIBSODIUM_HEADERS := external/libsodium/src/libsodium/include/sodium.h
LIBWALLY_HEADERS := external/libwally-core/include/wally_bip32.h \
external/libwally-core/include/wally_core.h \
external/libwally-core/include/wally_crypto.h
LIBSECP_HEADERS := external/libwally-core/src/secp256k1/include/secp256k1_ecdh.h \
external/libwally-core/src/secp256k1/include/secp256k1.h
JSMN_HEADERS := external/jsmn/jsmn.h
LIBBASE58_HEADERS := external/libbase58/libbase58.h
EXTERNAL_HEADERS := $(LIBSODIUM_HEADERS) $(LIBWALLY_HEADERS) $(LIBSECP_HEADERS) $(JSMN_HEADERS) $(LIBBASE58_HEADERS)
EXTERNAL_LIBS := external/libwallycore.a external/libsecp256k1.a external/libsodium.a external/libjsmn.a external/libbase58.a external/libbacktrace.a
EXTERNAL_INCLUDE_FLAGS := \
-I external/libsodium/src/libsodium/include \
-I external/libwally-core/include/ \
-I external/libwally-core/src/secp256k1/include/ \
-I external/jsmn/ \
-I external/libbase58/ \
-I external/libbacktrace/ \
-I external/libbacktrace-build
EXTERNAL_LDLIBS := -Lexternal $(patsubst lib%.a,-l%,$(notdir $(EXTERNAL_LIBS)))
submodcheck: FORCE
@tools/refresh-submodules.sh $(SUBMODULES)
# We build libsodium, since Ubuntu xenial has one too old.
external/libsodium.a: external/libsodium/src/libsodium/libsodium.la
$(MAKE) -C external/libsodium DESTDIR=$$(pwd)/external install-exec
external/libsodium/src/libsodium/include/sodium.h: submodcheck
external/libsodium/src/libsodium/libsodium.la: external/libsodium/src/libsodium/include/sodium.h
cd external/libsodium && ./autogen.sh && ./configure CC="$(CC)" --enable-static=yes --host="$(MAKE_HOST)" --build="$(BUILD)" --enable-shared=no --enable-tests=no --prefix=/ --libdir=/ && $(MAKE)
$(LIBWALLY_HEADERS) $(LIBSECP_HEADERS): submodcheck
# libsecp included in libwally.
# Wildcards here are magic. See http://stackoverflow.com/questions/2973445/gnu-makefile-rule-generating-a-few-targets-from-a-single-source-file
external/libsecp256k1.% external/libwallycore.%: external/libwally-core/src/secp256k1/libsecp256k1.la external/libwally-core/src/libwallycore.la
$(MAKE) -C external/libwally-core DESTDIR=$$(pwd)/external install-exec
external/libwally-core/src/libwallycore.% external/libwally-core/src/secp256k1/libsecp256k1.%: $(LIBWALLY_HEADERS) $(LIBSECP_HEADERS)
cd external/libwally-core && ./tools/autogen.sh && ./configure CC="$(CC)" --enable-static=yes --host="$(MAKE_HOST)" --build="$(BUILD)" --enable-module-recovery --enable-shared=no --prefix=/ --libdir=/ && $(MAKE)
external/jsmn/jsmn.h: submodcheck
# If we tell Make that the above builds both, it runs it twice in
# parallel. So we lie :(
external/jsmn/jsmn.c: external/jsmn/jsmn.h
[ -f $@ ]
external/jsmn.o: external/jsmn/jsmn.c Makefile
$(COMPILE.c) -DJSMN_STRICT=1 $(OUTPUT_OPTION) $<
external/libjsmn.a: external/jsmn.o
$(AR) rc $@ $<
LIBBASE58_SRC := external/libbase58/base58.c
$(LIBBASE58_SRC): $(LIBBASE58_HEADERS)
$(LIBBASE58_HEADERS): submodcheck
# Can't be inside submodule, as that makes git think it's dirty.
external/base58.o: $(LIBBASE58_SRC) Makefile
$(COMPILE.c) $(OUTPUT_OPTION) $<
external/libbase58.a: external/base58.o
$(AR) rc $@ $<
external/libbacktrace/backtrace.h: submodcheck
# Need separate build dir: changes inside submodule make git think it's dirty.
external/libbacktrace.a: external/libbacktrace/backtrace.h
@mkdir external/libbacktrace-build 2>/dev/null || true
cd external/libbacktrace-build && ../libbacktrace/configure CC="$(CC)" --enable-static=yes --host="$(MAKE_HOST)" --build="$(BUILD)" --enable-shared=no --prefix=/ --libdir=/ && $(MAKE)
$(MAKE) -C external/libbacktrace-build DESTDIR=$$(pwd)/external install-exec
distclean: external-distclean
clean: external-clean
external-clean:
$(RM) $(EXTERNAL_LIBS) external/*.la external/*.o
if [ -f external/libsodium/Makefile ]; then make -C external/libsodium clean; fi
if [ -f external/libwally-core/Makefile ]; then make -C external/libwally-core clean; fi
if [ -f external/ibwally-core/src/Makefile ]; then make -C external/libwally-core/src clean; fi
external-distclean:
make -C external/libsodium distclean || true
$(RM) -rf external/libbacktrace-build
$(RM) external/libsodium/src/libsodium/libsodium.la
$(RM) external/libwally-core/src/secp256k1/libsecp256k1.la external/libwally-core/src/libwallycore.la
$(RM) -r `git status --ignored --porcelain external/libwally-core | grep '^!! ' | cut -c3-`