To be upstreamable, this patch requires check for *_FOR_BUILD, otherwise it needs to pass special variables. It would be nice to implement per-target compiler specification to automake, as it is done for linker. Even better it would be nice to implement native build time targets in automake. Index: pcre-7.6/Makefile.am =================================================================== --- pcre-7.6.orig/Makefile.am 2008-01-23 17:58:28.000000000 +0000 +++ pcre-7.6/Makefile.am 2008-04-03 22:32:00.000000000 +0000 @@ -147,6 +147,11 @@ noinst_PROGRAMS += dftables dftables_SOURCES = dftables.c +dftables_LINK = $(LINK_FOR_BUILD) -o $@ +dftables_LDFLAGS = $(LDFLAGS_FOR_BUILD) + +dftables.o: $(srcdir)/dftables.c + $(CC_FOR_BUILD) -c $(CFLAGS_FOR_BUILD) -o $@ $(srcdir)/dftables.c pcre_chartables.c: dftables$(EXEEXT) ./dftables$(EXEEXT) $@