Turns out the -D option of install is GNU-specific, and doesn't exist on MacOS.
diff --git a/Makefile b/Makefile
index 0046a53..a6cb83e 100644
--- a/Makefile
+++ b/Makefile
@@ -144,7 +144,7 @@
LDXX = $(LDXX_$(CONFIG))
AR = ar
STRIP = strip --strip-unneeded
-INSTALL = install -D
+INSTALL = install
RM = rm -f
ifndef VALID_CONFIG_$(CONFIG)
@@ -1930,24 +1930,30 @@
install-headers_c:
$(E) "[INSTALL] Installing public C headers"
+ $(Q) $(foreach h, $(PUBLIC_HEADERS_C), $(INSTALL) -d $(prefix)/$(dir $(h)) && ) exit 0 || exit 1
$(Q) $(foreach h, $(PUBLIC_HEADERS_C), $(INSTALL) $(h) $(prefix)/$(h) && ) exit 0 || exit 1
install-headers_cxx:
$(E) "[INSTALL] Installing public C++ headers"
+ $(Q) $(foreach h, $(PUBLIC_HEADERS_CXX), $(INSTALL) -d $(prefix)/$(dir $(h)) && ) exit 0 || exit 1
$(Q) $(foreach h, $(PUBLIC_HEADERS_CXX), $(INSTALL) $(h) $(prefix)/$(h) && ) exit 0 || exit 1
install-static: install-static_c install-static_cxx
install-static_c: static_c strip-static_c
$(E) "[INSTALL] Installing libgpr.a"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr.a $(prefix)/lib/libgpr.a
$(E) "[INSTALL] Installing libgrpc.a"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc.a $(prefix)/lib/libgrpc.a
$(E) "[INSTALL] Installing libgrpc_unsecure.a"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(prefix)/lib/libgrpc_unsecure.a
install-static_cxx: static_cxx strip-static_cxx
$(E) "[INSTALL] Installing libgrpc++.a"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++.a $(prefix)/lib/libgrpc++.a
@@ -1955,10 +1961,12 @@
install-shared_c: shared_c strip-shared_c
ifeq ($(SYSTEM),MINGW32)
$(E) "[INSTALL] Installing gpr.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/gpr.$(SHARED_EXT) $(prefix)/lib/gpr.$(SHARED_EXT)
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr-imp.a $(prefix)/lib/libgpr-imp.a
else
$(E) "[INSTALL] Installing libgpr.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr.$(SHARED_EXT) $(prefix)/lib/libgpr.$(SHARED_EXT)
ifneq ($(SYSTEM),Darwin)
$(Q) ln -sf libgpr.$(SHARED_EXT) $(prefix)/lib/libgpr.so
@@ -1966,10 +1974,12 @@
endif
ifeq ($(SYSTEM),MINGW32)
$(E) "[INSTALL] Installing grpc.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/grpc.$(SHARED_EXT) $(prefix)/lib/grpc.$(SHARED_EXT)
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc-imp.a $(prefix)/lib/libgrpc-imp.a
else
$(E) "[INSTALL] Installing libgrpc.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc.$(SHARED_EXT) $(prefix)/lib/libgrpc.$(SHARED_EXT)
ifneq ($(SYSTEM),Darwin)
$(Q) ln -sf libgrpc.$(SHARED_EXT) $(prefix)/lib/libgrpc.so
@@ -1977,10 +1987,12 @@
endif
ifeq ($(SYSTEM),MINGW32)
$(E) "[INSTALL] Installing grpc_unsecure.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/grpc_unsecure.$(SHARED_EXT) $(prefix)/lib/grpc_unsecure.$(SHARED_EXT)
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure-imp.a $(prefix)/lib/libgrpc_unsecure-imp.a
else
$(E) "[INSTALL] Installing libgrpc_unsecure.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc_unsecure.$(SHARED_EXT)
ifneq ($(SYSTEM),Darwin)
$(Q) ln -sf libgrpc_unsecure.$(SHARED_EXT) $(prefix)/lib/libgrpc_unsecure.so
@@ -1996,10 +2008,12 @@
install-shared_cxx: shared_cxx strip-shared_cxx install-shared_c
ifeq ($(SYSTEM),MINGW32)
$(E) "[INSTALL] Installing grpc++.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/grpc++.$(SHARED_EXT) $(prefix)/lib/grpc++.$(SHARED_EXT)
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++-imp.a $(prefix)/lib/libgrpc++-imp.a
else
$(E) "[INSTALL] Installing libgrpc++.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++.$(SHARED_EXT) $(prefix)/lib/libgrpc++.$(SHARED_EXT)
ifneq ($(SYSTEM),Darwin)
$(Q) ln -sf libgrpc++.$(SHARED_EXT) $(prefix)/lib/libgrpc++.so
@@ -2015,10 +2029,12 @@
install-shared_csharp: shared_csharp strip-shared_csharp
ifeq ($(SYSTEM),MINGW32)
$(E) "[INSTALL] Installing grpc_csharp_ext.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/grpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/grpc_csharp_ext.$(SHARED_EXT)
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext-imp.a $(prefix)/lib/libgrpc_csharp_ext-imp.a
else
$(E) "[INSTALL] Installing libgrpc_csharp_ext.$(SHARED_EXT)"
+ $(Q) $(INSTALL) -d $(prefix)/lib
$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/libgrpc_csharp_ext.$(SHARED_EXT)
ifneq ($(SYSTEM),Darwin)
$(Q) ln -sf libgrpc_csharp_ext.$(SHARED_EXT) $(prefix)/lib/libgrpc_csharp_ext.so
@@ -2047,8 +2063,11 @@
$(Q) false
else
$(E) "[INSTALL] Installing grpc protoc plugins"
+ $(Q) $(INSTALL) -d $(prefix)/bin
$(Q) $(INSTALL) $(BINDIR)/$(CONFIG)/grpc_cpp_plugin $(prefix)/bin/grpc_cpp_plugin
+ $(Q) $(INSTALL) -d $(prefix)/bin
$(Q) $(INSTALL) $(BINDIR)/$(CONFIG)/grpc_python_plugin $(prefix)/bin/grpc_python_plugin
+ $(Q) $(INSTALL) -d $(prefix)/bin
$(Q) $(INSTALL) $(BINDIR)/$(CONFIG)/grpc_ruby_plugin $(prefix)/bin/grpc_ruby_plugin
endif