Merge pull request #1094 from nicolasnoble/msys2-makefile

Better support for msys2.

1 files changed, 106 insertions, 24 deletions

diff --git a/Makefile b/Makefile
index 8be6c5fd0a..857bde172e 100644
--- a/Makefile
+++ b/Makefile
@@ -37,12 +37,38 @@ HOST_SYSTEM = $(shell uname | cut -f 1 -d_)
 ifeq ($(SYSTEM),)
 SYSTEM = $(HOST_SYSTEM)
 endif
+ifeq ($(SYSTEM),MSYS)
+SYSTEM = MINGW32
+endif
 
 
 ifndef BUILDDIR
 BUILDDIR = .
 endif
 
+HAS_GCC = $(shell which gcc > /dev/null 2> /dev/null && echo true || echo false)
+HAS_CC = $(shell which cc > /dev/null 2> /dev/null && echo true || echo false)
+HAS_CLANG = $(shell which clang > /dev/null 2> /dev/null && echo true || echo false)
+
+ifeq ($(HAS_CC),true)
+DEFAULT_CC = cc
+DEFAULT_CXX = c++
+else
+ifeq ($(HAS_GCC),true)
+DEFAULT_CC = gcc
+DEFAULT_CXX = g++
+else
+ifeq ($(HAS_CLANG),true)
+DEFAULT_CC = clang
+DEFAULT_CXX = clang++
+else
+DEFAULT_CC = no_c_compiler
+DEFAULT_CXX = no_c++_compiler
+endif
+endif
+endif
+
+
 BINDIR = $(BUILDDIR)/bins
 OBJDIR = $(BUILDDIR)/objs
 LIBDIR = $(BUILDDIR)/libs
@@ -51,29 +77,29 @@ GENDIR = $(BUILDDIR)/gens
 # Configurations
 
 VALID_CONFIG_opt = 1
-CC_opt = cc
-CXX_opt = c++
-LD_opt = cc
-LDXX_opt = c++
+CC_opt = $(DEFAULT_CC)
+CXX_opt = $(DEFAULT_CXX)
+LD_opt = $(DEFAULT_CC)
+LDXX_opt = $(DEFAULT_CXX)
 CPPFLAGS_opt = -O2
 LDFLAGS_opt =
 DEFINES_opt = NDEBUG
 
 VALID_CONFIG_dbg = 1
-CC_dbg = cc
-CXX_dbg = c++
-LD_dbg = cc
-LDXX_dbg = c++
+CC_dbg = $(DEFAULT_CC)
+CXX_dbg = $(DEFAULT_CXX)
+LD_dbg = $(DEFAULT_CC)
+LDXX_dbg = $(DEFAULT_CXX)
 CPPFLAGS_dbg = -O0
 LDFLAGS_dbg =
 DEFINES_dbg = _DEBUG DEBUG
 
 VALID_CONFIG_valgrind = 1
 REQUIRE_CUSTOM_LIBRARIES_valgrind = 1
-CC_valgrind = cc
-CXX_valgrind = c++
-LD_valgrind = cc
-LDXX_valgrind = c++
+CC_valgrind = $(DEFAULT_CC)
+CXX_valgrind = $(DEFAULT_CXX)
+LD_valgrind = $(DEFAULT_CC)
+LDXX_valgrind = $(DEFAULT_CXX)
 CPPFLAGS_valgrind = -O0
 OPENSSL_CFLAGS_valgrind = -DPURIFY
 LDFLAGS_valgrind =
@@ -194,8 +220,14 @@ else
 CXXFLAGS += -std=c++0x
 DEFINES += GRPC_OLD_CXX
 endif
-CPPFLAGS += -g -fPIC -Wall -Wextra -Werror -Wno-long-long -Wno-unused-parameter
-LDFLAGS += -g -fPIC
+CPPFLAGS += -g -Wall -Wextra -Werror -Wno-long-long -Wno-unused-parameter
+LDFLAGS += -g
+
+ifneq ($(SYSTEM),MINGW32)
+PIC_CPPFLAGS = -fPIC
+CPPFLAGS += -fPIC
+LDFLAGS += -fPIC
+endif
 
 INCLUDES = . include $(GENDIR)
 ifeq ($(SYSTEM),Darwin)
@@ -218,11 +250,18 @@ endif
 ifneq ($(wildcard /usr/local/lib),)
 LDFLAGS += -L/usr/local/lib
 endif
-else
+endif
+
+ifeq ($(SYSTEM),Linux)
 LIBS = rt m z pthread
 LDFLAGS += -pthread
 endif
 
+ifeq ($(SYSTEM),MINGW32)
+LIBS = m z pthread
+LDFLAGS += -pthread
+endif
+
 ifneq ($(wildcard /usr/src/gtest/src/gtest-all.cc),)
 GTEST_LIB = /usr/src/gtest/src/gtest-all.cc -I/usr/src/gtest
 else
@@ -272,13 +311,31 @@ else
 IS_GIT_FOLDER = true
 endif
 
-OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c -lssl -lcrypto -ldl $(LDFLAGS)
+ifeq ($(SYSTEM),Linux)
+OPENSSL_REQUIRES_DL = true
+endif
+
+ifeq ($(SYSTEM),Darwin)
+OPENSSL_REQUIRES_DL = true
+endif
+
+ifeq ($(SYSTEM),MINGW32)
+OPENSSL_LIBS = ssl32 eay32
+else
+OPENSSL_LIBS = ssl crypto
+endif
+
+OPENSSL_ALPN_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/openssl-alpn.c $(addprefix -l, $(OPENSSL_LIBS)) $(LDFLAGS)
 ZLIB_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/zlib.c -lz $(LDFLAGS)
 PERFTOOLS_CHECK_CMD = $(CC) $(CFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/perftools.c -lprofiler $(LDFLAGS)
 PROTOBUF_CHECK_CMD = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(TMPOUT) test/build/protobuf.cc -lprotobuf $(LDFLAGS)
-PROTOC_CMD = which protoc
+PROTOC_CMD = which protoc > /dev/null
 PROTOC_CHECK_CMD = protoc --version | grep -q libprotoc.3
 
+ifeq ($(OPENSSL_REQUIRES_DL),true)
+OPENSSL_ALPN_CHECK_CMD += -ldl
+endif
+
 ifndef REQUIRE_CUSTOM_LIBRARIES_$(CONFIG)
 HAS_SYSTEM_PERFTOOLS = $(shell $(PERFTOOLS_CHECK_CMD) 2> /dev/null && echo true || echo false)
 ifeq ($(HAS_SYSTEM_PERFTOOLS),true)
@@ -299,7 +356,7 @@ HAS_SYSTEM_ZLIB = false
 HAS_SYSTEM_PROTOBUF = false
 endif
 
-HAS_PROTOC = $(shell $(PROTOC_CMD) > /dev/null && echo true || echo false)
+HAS_PROTOC = $(shell $(PROTOC_CMD) 2> /dev/null && echo true || echo false)
 ifeq ($(HAS_PROTOC),true)
 HAS_VALID_PROTOC = $(shell $(PROTOC_CHECK_CMD) 2> /dev/null && echo true || echo false)
 else
@@ -344,12 +401,17 @@ OPENSSL_MERGE_LIBS += $(LIBDIR)/$(CONFIG)/openssl/libssl.a $(LIBDIR)/$(CONFIG)/o
 # need to prefix these to ensure overriding system libraries
 CPPFLAGS := -Ithird_party/openssl/include $(CPPFLAGS)
 LDFLAGS := -L$(LIBDIR)/$(CONFIG)/openssl $(LDFLAGS)
+ifeq ($(OPENSSL_REQUIRES_DL),true)
 LIBS_SECURE = dl
+endif
 else
 NO_SECURE = true
 endif
 else
-LIBS_SECURE = ssl crypto dl
+LIBS_SECURE = $(OPENSSL_LIBS)
+ifeq ($(OPENSSL_REQUIRES_DL),true)
+LIBS_SECURE += dl
+endif
 endif
 
 LDLIBS_SECURE += $(addprefix -l, $(LIBS_SECURE))
@@ -923,7 +985,7 @@ run_dep_checks:
 
 $(LIBDIR)/$(CONFIG)/zlib/libz.a:
 	$(E) "[MAKE]    Building zlib"
-	$(Q)(cd third_party/zlib ; CC="$(CC)" CFLAGS="-fPIC -fvisibility=hidden $(CPPFLAGS_$(CONFIG))" ./configure --static)
+	$(Q)(cd third_party/zlib ; CC="$(CC)" CFLAGS="$(PIC_CPPFLAGS) -fvisibility=hidden $(CPPFLAGS_$(CONFIG))" ./configure --static)
 	$(Q)$(MAKE) -C third_party/zlib clean
 	$(Q)$(MAKE) -C third_party/zlib
 	$(Q)mkdir -p $(LIBDIR)/$(CONFIG)/zlib
@@ -932,9 +994,29 @@ $(LIBDIR)/$(CONFIG)/zlib/libz.a:
 $(LIBDIR)/$(CONFIG)/openssl/libssl.a:
 	$(E) "[MAKE]    Building openssl for $(SYSTEM)"
 ifeq ($(SYSTEM),Darwin)
-	$(Q)(cd third_party/openssl ; CC="$(CC) -fPIC -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(OPENSSL_CFLAGS_$(CONFIG))" ./Configure darwin64-x86_64-cc)
+	$(Q)(cd third_party/openssl ; CC="$(CC) $(PIC_CPPFLAGS) -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(OPENSSL_CFLAGS_$(CONFIG))" ./Configure darwin64-x86_64-cc)
 else
-	$(Q)(cd third_party/openssl ; CC="$(CC) -fPIC -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(OPENSSL_CFLAGS_$(CONFIG))" ./config no-asm $(OPENSSL_CONFIG_$(CONFIG)))
+ifeq ($(SYSTEM),MINGW32)
+	@echo "We currently don't have a good way to compile OpenSSL in-place under msys."
+	@echo "Please provide an ALPN-capable OpenSSL in your mingw32 system."
+	@echo
+	@echo "Note that you can find a compatible version of the libraries here:"
+	@echo
+	@echo "http://slproweb.com/products/Win32OpenSSL.html"
+	@echo
+	@echo "If you decide to install that one, take the full version. The light"
+	@echo "version only contains compiled DLLs, without the development files."
+	@echo
+	@echo "When installing, chose to copy the OpenSSL dlls to the OpenSSL binaries"
+	@echo "directory. This way we'll link to them directly."
+	@echo
+	@echo "You can then re-start the build the following way:"
+	@echo
+	@echo "  CPPFLAGS=-I/c/OpenSSL-Win64/include LDFLAGS=-L/c/OpenSSL-Win64 make"
+	@false
+else
+	$(Q)(cd third_party/openssl ; CC="$(CC) $(PIC_CPPFLAGS) -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(OPENSSL_CFLAGS_$(CONFIG))" ./config no-asm $(OPENSSL_CONFIG_$(CONFIG)))
+endif
 endif
 	$(Q)$(MAKE) -C third_party/openssl clean
 	$(Q)$(MAKE) -C third_party/openssl build_crypto build_ssl
@@ -948,9 +1030,9 @@ third_party/protobuf/configure:
 $(LIBDIR)/$(CONFIG)/protobuf/libprotobuf.a: third_party/protobuf/configure
 	$(E) "[MAKE]    Building protobuf"
 ifeq ($(HAVE_CXX11),true)
-	$(Q)(cd third_party/protobuf ; CC="$(CC)" CXX="$(CXX)" LDFLAGS="$(LDFLAGS_$(CONFIG)) -g" CXXFLAGS="-DLANG_CXX11 -std=c++11" CPPFLAGS="-fPIC $(CPPFLAGS_$(CONFIG)) -g" ./configure --disable-shared --enable-static)
+	$(Q)(cd third_party/protobuf ; CC="$(CC)" CXX="$(CXX)" LDFLAGS="$(LDFLAGS_$(CONFIG)) -g" CXXFLAGS="-DLANG_CXX11 -std=c++11" CPPFLAGS="$(PIC_CPPFLAGS) $(CPPFLAGS_$(CONFIG)) -g" ./configure --disable-shared --enable-static)
 else
-	$(Q)(cd third_party/protobuf ; CC="$(CC)" CXX="$(CXX)" LDFLAGS="$(LDFLAGS_$(CONFIG)) -g" CXXFLAGS="-std=c++0x" CPPFLAGS="-fPIC $(CPPFLAGS_$(CONFIG)) -g" ./configure --disable-shared --enable-static)
+	$(Q)(cd third_party/protobuf ; CC="$(CC)" CXX="$(CXX)" LDFLAGS="$(LDFLAGS_$(CONFIG)) -g" CXXFLAGS="-std=c++0x" CPPFLAGS="$(PIC_CPPFLAGS) $(CPPFLAGS_$(CONFIG)) -g" ./configure --disable-shared --enable-static)
 endif
 	$(Q)$(MAKE) -C third_party/protobuf clean
 	$(Q)$(MAKE) -C third_party/protobuf