so i've narrowed it down to a case that works, and one that doesn't (but i think should?) here's the working Makevars file (copied directly):
------------------ WORKING EXAMPLE ------------------------ JANSSON_DIR = $(PWD)/jansson-1.3 JANSSON_LIB_DIR = $(PWD)/jansson-1.3/lib JANSSON_INCLUDE_DIR = $(PWD)/jansson-1.3/include JANSSON_LIB = -ljansson PKG_CPPFLAGS = -I$(JANSSON_INCLUDE_DIR) PKG_LIBS = -L$(JANSSON_LIB_DIR) $(JANSSON_LIB) .PHONY: all jansson_target all: jansson_target $(SHLIB) $(SHLIB): jansson_target jansson_target: (echo 'foobar!'; cd .; gunzip jansson-1.3.tar.gz; tar -xf jansson-1.3.tar; cd jansson-1.3; ./configure --prefix=$(JANSSON_DIR) -- with-pic --disable-sh\ ared; make; make install) and here's a non-working example. the only changed line is the all target/dependencies line: ------------------ NON-WORKING EXAMPLE ------------------------ JANSSON_DIR = $(PWD)/jansson-1.3 JANSSON_LIB_DIR = $(PWD)/jansson-1.3/lib JANSSON_INCLUDE_DIR = $(PWD)/jansson-1.3/include JANSSON_LIB = -ljansson PKG_CPPFLAGS = -I$(JANSSON_INCLUDE_DIR) PKG_LIBS = -L$(JANSSON_LIB_DIR) $(JANSSON_LIB) .PHONY: all jansson_target all: $(SHLIB) $(SHLIB): jansson_target jansson_target: (echo 'foobar!'; cd .; gunzip jansson-1.3.tar.gz; tar -xf jansson-1.3.tar; cd jansson-1.3; ./configure --prefix=$(JANSSON_DIR) -- with-pic --disable-sh\ ared; make; make install) could someone try to explain to me why the first version works, but the second doesn't? also, if the dependencies for 'all' are reversed in order on that single line in the working file, it stops working again. in all non-working cases, R CMD INSTALL tries to build the target $ (SHLIB) (via the R CMD SHLIB command) *prior* to building the dependency 'jansson_target'. thanks for any insight into this... (it's working now, but i'm afraid it's likely fragile). -murat ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.