Thread
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BUG #1311: Can't crosscompile
PostgreSQL Bugs List <pgsql-bugs@postgresql.org> — 2004-11-10T10:34:48Z
The following bug has been logged online: Bug reference: 1311 Logged by: Bernhard Rosenkraenzer Email address: bero@arklinux.org PostgreSQL version: 8.0 Beta Operating system: Ark Linux Description: Can't crosscompile Details: Hi, 8.0.0beta4 can't be crosscompiled (I know that's hardly mainstream usage -- but I need the client libs on a PDA) because it tries to run the zic binary it generated for the target platform rather than the build platform. Quick and dirty [and not really portable] patch: --- postgresql-8.0.0beta4/src/timezone/Makefile.ark 2004-11-10 06:59:27.000000000 +0100 +++ postgresql-8.0.0beta4/src/timezone/Makefile 2004-11-10 07:01:21.000000000 +0100 @@ -13,12 +13,14 @@ include $(top_builddir)/src/Makefile.global override CPPFLAGS := $(CPPFLAGS) +HOST_CC := gcc +HOST_CFLAGS := $(CFLAGS) # files to build into backend OBJS= localtime.o strftime.o pgtz.o # files needed to build zic utility program -ZICOBJS= zic.o ialloc.o scheck.o localtime.o +ZICSOURCES= zic.c ialloc.c scheck.c localtime.c # timezone data files TZDATA := africa antarctica asia australasia europe northamerica southamerica \ @@ -30,8 +32,8 @@ SUBSYS.o: $(OBJS) $(LD) $(LDREL) $(LDOUT) SUBSYS.o $(OBJS) -zic: $(ZICOBJS) - $(CC) $(CFLAGS) $(ZICOBJS) $(LDFLAGS) $(LIBS) -o $@$(X) +zic: $(ZICSOURCES) + $(HOST_CC) $(HOST_CFLAGS) $(CPPFLAGS) $(ZICSOURCES) $(LDFLAGS) $(LIBS) -o $@$(X) install: all installdirs ./zic -d $(DESTDIR)$(datadir)/timezone $(TZDATAFILES) -
Re: BUG #1311: Can't crosscompile
Tom Lane <tgl@sss.pgh.pa.us> — 2004-11-10T17:33:51Z
"PostgreSQL Bugs List" <pgsql-bugs@postgresql.org> writes: > Quick and dirty [and not really portable] patch: s/not really/not at all/ AFAICS this would take some fairly significant surgery in configure to even have a prayer of working --- there's no reason to assume that the host compiler has the same flags as the cross-compiler, for example. An even bigger issue is that the files generated by zic might not be machine-independent --- I haven't looked closely but they certainly are binary data. If they are dependent on endianness or sizeof(int) or whatever then this approach won't work at all. In a cross-compile situation it'd probably be better to install the zic executable and then run it later on the target system to generate the timezone data files. Not sure what sort of makefile hacking might be needed to bring this into the realm of possibility. regards, tom lane
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Re: BUG #1311: Can't crosscompile
Bruce Momjian <pgman@candle.pha.pa.us> — 2004-11-29T03:17:23Z
Added to TODO list: * Allow cross-compiling by generating the zic database on the target system --------------------------------------------------------------------------- Tom Lane wrote: > "PostgreSQL Bugs List" <pgsql-bugs@postgresql.org> writes: > > Quick and dirty [and not really portable] patch: > > s/not really/not at all/ > > AFAICS this would take some fairly significant surgery in configure to > even have a prayer of working --- there's no reason to assume that the > host compiler has the same flags as the cross-compiler, for example. > > An even bigger issue is that the files generated by zic might not be > machine-independent --- I haven't looked closely but they certainly > are binary data. If they are dependent on endianness or sizeof(int) > or whatever then this approach won't work at all. > > In a cross-compile situation it'd probably be better to install the zic > executable and then run it later on the target system to generate the > timezone data files. Not sure what sort of makefile hacking might be > needed to bring this into the realm of possibility. > > regards, tom lane > > ---------------------------(end of broadcast)--------------------------- > TIP 5: Have you checked our extensive FAQ? > > http://www.postgresql.org/docs/faqs/FAQ.html > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073