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# Makefile for PL/Perl
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# src/pl/plperl/GNUmakefile
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subdir = src/pl/plperl
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top_builddir = ../../..
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include $(top_builddir)/src/Makefile.global
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ifeq ($(PORTNAME), win32)
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override CPPFLAGS += -DPLPERL_HAVE_UID_GID
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# Perl on win32 contains /* within comment all over the header file,
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# so disable this warning.
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override CPPFLAGS += -Wno-comment
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endif
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PL/Perl portability fix: absorb relevant -D switches from Perl.
The Perl documentation is very clear that stuff calling libperl should
be built with the compiler switches shown by Perl's $Config{ccflags}.
We'd been ignoring that up to now, and mostly getting away with it,
but recent Perl versions contain ABI compatibility cross-checks that
fail on some builds because of this omission. In particular the
sizeof(PerlInterpreter) can come out different due to some fields being
added or removed; which means we have a live ABI hazard that we'd better
fix rather than continuing to sweep it under the rug.
However, it still seems like a bad idea to just absorb $Config{ccflags}
verbatim. In some environments Perl was built with a different compiler
that doesn't even use the same switch syntax. -D switch syntax is pretty
universal though, and absorbing Perl's -D switches really ought to be
enough to fix the problem.
Furthermore, Perl likes to inject stuff like -D_LARGEFILE_SOURCE and
-D_FILE_OFFSET_BITS=64 into $Config{ccflags}, which affect libc ABIs on
platforms where they're relevant. Adopting those seems dangerous too.
It's unclear whether a build wherein Perl and Postgres have different ideas
of sizeof(off_t) etc would work, or whether anyone would care about making
it work. But it's dead certain that having different stdio ABIs in
core Postgres and PL/Perl will not work; we've seen that movie before.
Therefore, let's also ignore -D switches for symbols beginning with
underscore. The symbols that we actually need to import should be the ones
mentioned in perl.h's PL_bincompat_options stanza, and none of those start
with underscore, so this seems likely to work. (If it turns out not to
work everywhere, we could consider intersecting the symbols mentioned in
PL_bincompat_options with the -D switches. But that will be much more
complicated, so let's try this way first.)
This will need to be back-patched, but first let's see what the
buildfarm makes of it.
Ashutosh Sharma, some adjustments by me
Discussion: https://postgr.es/m/CANFyU97OVQ3+Mzfmt3MhuUm5NwPU=-FtbNH5Eb7nZL9ua8=rcA@mail.gmail.com
8 years ago
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# Note: we need to make sure that the CORE directory is included last,
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# probably because it sometimes contains some header files with names
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# that clash with some of ours, or with some that we include, notably on
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# Windows.
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override CPPFLAGS := -I. -I$(srcdir) $(CPPFLAGS) $(perl_embed_ccflags) -I$(perl_archlibexp)/CORE
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rpathdir = $(perl_archlibexp)/CORE
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PGFILEDESC = "PL/Perl - procedural language"
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NAME = plperl
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OBJS = plperl.o SPI.o Util.o $(WIN32RES)
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DATA = plperl.control plperl--1.0.sql plperl--unpackaged--1.0.sql \
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plperlu.control plperlu--1.0.sql plperlu--unpackaged--1.0.sql
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PERLCHUNKS = plc_perlboot.pl plc_trusted.pl
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# Perl on win32 ships with import libraries only for Microsoft Visual C++,
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# which are not compatible with mingw gcc. Therefore we need to build a
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# new import library to link with.
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ifeq ($(PORTNAME), win32)
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perlwithver := $(subst -l,,$(filter -l%, $(perl_embed_ldflags)))
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PERLDLL := $(dir $(subst ',,$(PERL)))$(perlwithver).dll
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# we no longer want to include the original -l spec in SHLIB_LINK
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override perl_embed_ldflags :=
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OBJS += lib$(perlwithver).a
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lib$(perlwithver).a: $(perlwithver).def
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dlltool --dllname $(perlwithver).dll --def $(perlwithver).def --output-lib lib$(perlwithver).a
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$(perlwithver).def: $(PERLDLL)
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pexports $^ > $@
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endif # win32
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SHLIB_LINK = $(perl_embed_ldflags)
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REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-extension=plperl --load-extension=plperlu
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REGRESS = plperl plperl_lc plperl_trigger plperl_shared plperl_elog plperl_util plperl_init plperlu plperl_array
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# if Perl can support two interpreters in one backend,
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# test plperl-and-plperlu cases
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ifneq ($(PERL),)
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ifeq ($(shell $(PERL) -V:usemultiplicity), usemultiplicity='define';)
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REGRESS += plperl_plperlu
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endif
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endif
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# where to find xsubpp for building XS.
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XSUBPPDIR = $(shell $(PERL) -e 'use List::Util qw(first); print first { -r "$$_/ExtUtils/xsubpp" } @INC')
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include $(top_srcdir)/src/Makefile.shlib
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plperl.o: perlchunks.h plperl_opmask.h plperl_helpers.h
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plperl_opmask.h: plperl_opmask.pl
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@if [ x"$(perl_privlibexp)" = x"" ]; then echo "configure switch --with-perl was not specified."; exit 1; fi
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$(PERL) $< $@
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perlchunks.h: $(PERLCHUNKS)
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@if [ x"$(perl_privlibexp)" = x"" ]; then echo "configure switch --with-perl was not specified."; exit 1; fi
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$(PERL) $(srcdir)/text2macro.pl --strip='^(\#.*|\s*)$$' $^ > $@
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all: all-lib
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%.c: %.xs
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@if [ x"$(perl_privlibexp)" = x"" ]; then echo "configure switch --with-perl was not specified."; exit 1; fi
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$(PERL) $(XSUBPPDIR)/ExtUtils/xsubpp -typemap $(perl_privlibexp)/ExtUtils/typemap -output $@ $<
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install: all install-lib install-data
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installdirs: installdirs-lib
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$(MKDIR_P) '$(DESTDIR)$(datadir)/extension' '$(DESTDIR)$(includedir_server)'
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uninstall: uninstall-lib uninstall-data
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install-data: installdirs
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$(INSTALL_DATA) $(addprefix $(srcdir)/, $(DATA)) '$(DESTDIR)$(datadir)/extension/'
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$(INSTALL_DATA) $(srcdir)/plperl.h $(srcdir)/ppport.h '$(DESTDIR)$(includedir_server)'
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uninstall-data:
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rm -f $(addprefix '$(DESTDIR)$(datadir)/extension'/, $(notdir $(DATA)))
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rm -f $(addprefix '$(DESTDIR)$(includedir_server)'/, plperl.h ppport.h)
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.PHONY: install-data uninstall-data
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check: submake
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$(pg_regress_check) $(REGRESS_OPTS) $(REGRESS)
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installcheck: submake
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$(pg_regress_installcheck) $(REGRESS_OPTS) $(REGRESS)
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.PHONY: submake
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submake:
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$(MAKE) -C $(top_builddir)/src/test/regress pg_regress$(X)
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clean distclean maintainer-clean: clean-lib
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rm -f SPI.c Util.c $(OBJS) perlchunks.h plperl_opmask.h
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rm -rf $(pg_regress_clean_files)
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ifeq ($(PORTNAME), win32)
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rm -f $(perlwithver).def
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endif
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